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TDMS Study 89029-06 Pathology Tables

NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/06/98

EXPERIMENT: 89029 TEST: 06                                                                                     TIME: 08:58:57
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:
CONT: NO1-ES-25351                              ROUTE: MAGNETIC FIELDS                                         NTP C#: C89029
PATHOLOGIST: PLETCHER, J                                                                                       CAS: ELECTROMAG
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10   
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/06/98     
EXPERIMENT: 89029 TEST: 06                                                                                     TIME: 08:58:57     
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:              
CONT: NO1-ES-25351                              ROUTE: MAGNETIC FIELDS                                         NTP C#: C89029     
PATHOLOGIST: PLETCHER, J                                                                                       CAS: ELECTROMAG    



SUMMARY OF STATISTICALLY SIGNIFICANT (P<=.05) RESULTS
IN THE ANALYSIS OF               MAGNETIC FIELDS (EMF)
===============================================================

Male Mice
------------
Organ                                 Morphology
-----                                 ----------
Brain: Thalamus                        Mineralization
Epididymis                             Infiltration Cellular Lymphocyte
                                       Spermatocele
Intestine Large, Cecum: Lymphoid Tissue
                                       Hyperplasia
Intestine Small, Ileum: Muscularis     Hypertrophy
Islets, Pancreatic                     Hyperplasia
Kidney: Cortex                         Cyst
                                       Mineralization
Kidney: Cortex, Renal Tubule           Degeneration
                                       Dilatation
Kidney: Medulla                        Infiltration Cellular Lymphocyte
Liver                                  Hepatodiaphragmatic Nodule
                                       Infiltration Cellular Focal Mixed Cell
Liver: Hepatocyte                      Vacuolization Cytoplasmic
Lung                                   Infiltration Cellular Lymphocyte
Lymph Node, Mandibular                 Infiltration Cellular Mast Cell
Lymph Node, Mesenteric                 Hyperplasia
                                       Infiltration Cellular Histiocyte
Pancreas                               Lipomatosis
                                       Vacuolization Cytoplasmic
Preputial Gland                        Atrophy
                                       Cyst
                                       Inflammation
Seminal Vesicle                        Atrophy
                                       Cyst
Spleen                                 Hematopoietic Cell Proliferation
Spleen: Lymphoid Follicle              Hyperplasia
Spleen: Red Pulp                       Atrophy
Testes                                 Atrophy
Thymus                                 Atrophy
                                       Hyperplasia Lymphoid
Thyroid Gland: Follicle                Cyst
===============================================================
Female Mice
------------
Organ                                  Morphology
-----                                  ----------
Adrenal Cortex: Zona Fasciculata       Hypertrophy Focal
Adrenal Medulla                        Hyperplasia
Bone Marrow                            Hyperplasia
Brain: Thalamus                        Mineralization
Clitoral Gland                         Cyst
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10   
LAB: I. I. T. Research Inst                               MAGNETIC FIELDS (EMF)                                DATE: 01/06/98     
EXPERIMENT: 89029 TEST: 06                                                                                     TIME: 08:58:57     
TEST TYPE:  CHRONIC                             CAGES FROM 0000 TO LAST CAGE                                   PAGE:              
CONT: NO1-ES-25351                              ROUTE: MAGNETIC FIELDS                                         NTP C#: C89029     
PATHOLOGIST: PLETCHER, J                                                                                       CAS: ELECTROMAG    

Gallbladder: Epithelium                Cyst
Intestine Small, Jejunum: Peyer's Patch
                                       Hyperplasia
Islets, Pancreatic                     Hyperplasia
Kidney: Cortex                         Cyst
                                       Infiltration Cellular Lymphocyte
Liver                                  Necrosis
Lung: Alveolar Epithelium              Hyperplasia Focal
Lymph Node, Mandibular                 Pigmentation
Lymph Node, Mesenteric                 Atrophy
                                       Hyperplasia Reticulum Cell
Pancreas                               Infiltration Cellular Lymphocyte
                                       Lipomatosis
Spleen                                 Hematopoietic Cell Proliferation
                                       Pigmentation
Stomach, Glandular                     Infiltration Cellular Lymphocyte
Stomach, Glandular: Epithelium         Cyst Focal
Thymus                                 Atrophy
                                       Cyst Focal
                                       Hyperplasia Lymphoid
Uterus                                 Hydrometra
Uterus: Endometrium                    Hyperplasia Cystic
===============================================================
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 1
                     Statistical Analysis of Non-neoplastic Lesions in        Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Capsule                                                                                                          |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     86/99 (87%)  83/96 (86%)  91/99 (92%)  81/94 (86%) |91/92 (99%)  96/98 (98%)  97/99 (98%)  98/99 (99%)  |
|POLY-3 ADJUSTED (b)|     88.5%        88.8%        92.5%        88.6%       |99.0%        98.0%        99.0%        100.0%       |
|TERMINAL (d)       |     69/76 (91%)  63/71 (89%)  78/84 (93%)  54/61 (89%) |70/70 (100%) 73/74 (99%)  78/79 (99%)  74/74 (100%) |
|FIRST INCIDENCE    |     386          400          430          448         |334          64           472          85           |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.052      P=0.417      P=0.400N     P=0.092     |P=0.329      P=0.504      P=0.375N     P=0.389      |
|POLY 3             |     P=0.505N     P=0.573      P=0.232      P=0.586     |P=0.240      P=0.527N     P=0.767N     P=0.521      |
|POLY 1.5           |     P=0.486N     P=0.587      P=0.207      P=0.581N    |P=0.265      P=0.525N     P=0.758      P=0.550      |
|POLY 6             |     P=0.507N     P=0.570      P=0.270      P=0.593     |P=0.245      P=0.533N     P=0.759N     P=0.543      |
|LOGISTIC REGRESSION|     P=0.525N     P=0.555      P=0.179      P=0.544     |P=0.372      P=0.511N     P=0.674N     P=0.578      |
|COCH-ARM / FISHERS |     P=0.437N     P=0.550N     P=0.178      P=0.527N    |P=0.486      P=0.524N     P=0.528N     P=0.733      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Zona Fasciculata                                                                                                 |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/99 (4%)    7/96 (7%)    7/99 (7%)    2/94 (2%)   |0/92 (0%)    0/98 (0%)    1/99 (1%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     4.3%         8.1%         7.6%         2.4%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     3/76 (4%)    7/71 (10%)   7/84 (8%)    1/61 (2%)   |0/70 (0%)    0/74 (0%)    1/79 (1%)    0/74 (0%)    |
|FIRST INCIDENCE    |     717          734 (T)      734 (T)      718         |---          ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.180N     P=0.232      P=0.326      P=0.432N    |P=0.766N     (e)          P=0.524      (e)          |
|POLY 3             |     P=0.146N     P=0.231      P=0.270      P=0.395N    |P=0.765N     (e)          P=0.510      (e)          |
|POLY 1.5           |     P=0.136N     P=0.239      P=0.269      P=0.382N    |P=0.764N     (e)          P=0.512      (e)          |
|POLY 6             |     P=0.157N     P=0.221      P=0.275      P=0.408N    |P=0.765N     (e)          P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.161N     P=0.219      P=0.292      P=0.416N    |(e)          (e)          P=0.524      (e)          |
|COCH-ARM / FISHERS |     P=0.123N     P=0.251      P=0.269      P=0.366N    |P=0.761N     (e)          P=0.518      (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 2
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Zona Fasciculata                                                                                                 |
|     Hypertrophy                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     9/99 (9%)    14/96 (15%)  13/99 (13%)  9/94 (10%)  |0/92 (0%)    0/98 (0%)    0/99 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     9.8%         16.3%        13.9%        11.0%       |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     9/76 (12%)   14/71 (20%)  11/84 (13%)  9/61 (15%)  |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      449          734 (T)     |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.494N     P=0.139      P=0.325      P=0.403     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.384N     P=0.143      P=0.263      P=0.494     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.359N     P=0.153      P=0.257      P=0.517     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.413N     P=0.133      P=0.273      P=0.468     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.400N     P=0.139      P=0.250      P=0.403     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.321N     P=0.167      P=0.249      P=0.552     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Zona Fasciculata                                                                                                 |
|     Hypertrophy Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     15/99 (15%)  20/96 (21%)  21/99 (21%)  12/94 (13%) |2/92 (2%)    0/98 (0%)    3/99 (3%)    5/99 (5%)    |
|POLY-3 ADJUSTED (b)|     16.3%        23.0%        22.5%        14.6%       |2.3%         0.0%         3.3%         5.6%         |
|TERMINAL (d)       |     14/76 (18%)  17/71 (24%)  20/84 (24%)  10/61 (16%) |2/70 (3%)    0/74 (0%)    2/79 (3%)    5/74 (7%)    |
|FIRST INCIDENCE    |     683          618          527          690         |735 (T)      ---          721          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.287N     P=0.165      P=0.270      P=0.570N    |P=0.045 *    P=0.227N     P=0.547      P=0.243      |
|POLY 3             |     P=0.187N     P=0.170      P=0.186      P=0.465N    |P=0.046 *    P=0.232N     P=0.523      P=0.233      |
|POLY 1.5           |     P=0.166N     P=0.181      P=0.182      P=0.436N    |P=0.047 *    P=0.230N     P=0.526      P=0.237      |
|POLY 6             |     P=0.213N     P=0.159      P=0.193      P=0.497N    |P=0.046 *    P=0.234N     P=0.518      P=0.231      |
|LOGISTIC REGRESSION|     P=0.202N     P=0.150      P=0.188      P=0.525N    |P=0.046 *    (e)          P=0.516      P=0.243      |
|COCH-ARM / FISHERS |     P=0.137N     P=0.199      P=0.179      P=0.394N    |P=0.049 *    P=0.233N     P=0.535      P=0.254      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 3
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Zona Fasciculata                                                                                                 |
|     Vacuolization Cytoplasmic                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    0/96 (0%)    0/99 (0%)    0/94 (0%)   |0/92 (0%)    0/98 (0%)    0/99 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     2.2%         0.0%         0.0%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     2/76 (3%)    0/71 (0%)    0/84 (0%)    0/61 (0%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      ---          ---          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.403N     P=0.254N     P=0.217N     P=0.289N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.373N     P=0.253N     P=0.237N     P=0.265N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.373N     P=0.250N     P=0.238N     P=0.259N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.374N     P=0.257N     P=0.235N     P=0.272N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.403N     (e)          (e)          (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.372N     P=0.256N     P=0.249N     P=0.262N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Zona Glomerulosa                                                                                                 |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    7/96 (7%)    4/99 (4%)    2/94 (2%)   |0/92 (0%)    0/98 (0%)    1/99 (1%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     3.2%         8.1%         4.3%         2.4%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     1/76 (1%)    5/71 (7%)    3/84 (4%)    2/61 (3%)   |0/70 (0%)    0/74 (0%)    1/79 (1%)    0/74 (0%)    |
|FIRST INCIDENCE    |     579          592          556          734 (T)     |---          ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.232N     P=0.146      P=0.535      P=0.581N    |P=0.766N     (e)          P=0.524      (e)          |
|POLY 3             |     P=0.205N     P=0.139      P=0.503      P=0.556N    |P=0.765N     (e)          P=0.510      (e)          |
|POLY 1.5           |     P=0.193N     P=0.144      P=0.501      P=0.543N    |P=0.764N     (e)          P=0.512      (e)          |
|POLY 6             |     P=0.219N     P=0.133      P=0.507      P=0.570N    |P=0.765N     (e)          P=0.508      (e)          |
|LOGISTIC REGRESSION|     P=0.172N     P=0.157      P=0.498      P=0.519N    |(e)          (e)          P=0.524      (e)          |
|COCH-ARM / FISHERS |     P=0.176N     P=0.153      P=0.500      P=0.525N    |P=0.761N     (e)          P=0.518      (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 4
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Cortex: Zona Reticularis                                                                                                 |
|     Degeneration Fatty                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    1/96 (1%)    0/99 (0%)    0/94 (0%)   |4/92 (4%)    2/98 (2%)    7/99 (7%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     1.1%         1.2%         0.0%         0.0%        |4.6%         2.2%         7.6%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    1/71 (1%)    0/84 (0%)    0/61 (0%)   |4/70 (6%)    2/74 (3%)    5/79 (6%)    0/74 (0%)    |
|FIRST INCIDENCE    |     683          734 (T)      ---          ---         |735 (T)      735 (T)      654          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.395N     P=0.741      P=0.500N     P=0.530N    |P=0.072N     P=0.314N     P=0.325      P=0.058N     |
|POLY 3             |     P=0.382N     P=0.745      P=0.499N     P=0.524N    |P=0.072N     P=0.327N     P=0.299      P=0.059N     |
|POLY 1.5           |     P=0.379N     P=0.749      P=0.500N     P=0.518N    |P=0.071N     P=0.322N     P=0.303      P=0.058N     |
|POLY 6             |     P=0.386N     P=0.741      P=0.498N     P=0.530N    |P=0.072N     P=0.330N     P=0.295      P=0.060N     |
|LOGISTIC REGRESSION|     P=0.375N     P=0.754      P=0.501N     P=0.495N    |P=0.072N     P=0.314N     P=0.299      (e)          |
|COCH-ARM / FISHERS |     P=0.373N     P=0.744      P=0.500N     P=0.513N    |P=0.068N     P=0.312N     P=0.312      P=0.052N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Adrenal Medulla                                                                                                                  |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/98 (0%)    2/93 (2%)    3/99 (3%)    3/91 (3%)   |3/90 (3%)    8/95 (8%)    2/97 (2%)    0/97 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         2.4%         3.2%         3.7%        |3.5%         9.3%         2.2%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    2/68 (3%)    3/84 (4%)    2/61 (3%)   |3/70 (4%)    7/73 (10%)   2/79 (3%)    0/73 (0%)    |
|FIRST INCIDENCE    |     ---          734 (T)      734 (T)      483         |735 (T)      705          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.175      P=0.215      P=0.141      P=0.097     |P=0.016N*    P=0.120      P=0.445N     P=0.115N     |
|POLY 3             |     P=0.204      P=0.218      P=0.124      P=0.100     |P=0.016N*    P=0.112      P=0.474N     P=0.116N     |
|POLY 1.5           |     P=0.211      P=0.222      P=0.124      P=0.103     |P=0.016N*    P=0.115      P=0.471N     P=0.114N     |
|POLY 6             |     P=0.198      P=0.214      P=0.125      P=0.097     |P=0.016N*    P=0.109      P=0.478N     P=0.117N     |
|LOGISTIC REGRESSION|     P=0.223      P=0.215      P=0.141      P=0.138     |P=0.016N*    P=0.109      P=0.445N     (e)          |
|COCH-ARM / FISHERS |     P=0.221      P=0.236      P=0.125      P=0.110     |P=0.015N*    P=0.124      P=0.465N     P=0.110N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 5
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Blood Vessel: Aorta                                                                                                              |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/97 (0%)    0/94 (0%)    1/100 (1%)   1/96 (1%)   |2/98 (2%)    0/100 (0%)   0/94 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         1.1%         1.2%        |2.2%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/75 (0%)    0/68 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    0/78 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          ---          636          466         |625          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.356      (e)          P=0.500      P=0.496     |P=0.366N     P=0.240N     P=0.239N     P=0.241N     |
|POLY 3             |     P=0.356      (e)          P=0.506      P=0.487     |P=0.365N     P=0.236N     P=0.244N     P=0.239N     |
|POLY 1.5           |     P=0.360      (e)          P=0.506      P=0.492     |P=0.365N     P=0.235N     P=0.245N     P=0.239N     |
|POLY 6             |     P=0.351      (e)          P=0.507      P=0.482     |P=0.363N     P=0.237N     P=0.243N     P=0.238N     |
|LOGISTIC REGRESSION|     P=0.457      (e)          P=0.511      P=0.552     |P=0.358N     P=0.229N     P=0.248N     P=0.228N     |
|COCH-ARM / FISHERS |     P=0.365      (e)          P=0.508      P=0.497     |P=0.364N     P=0.244N     P=0.259N     P=0.246N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     33/99 (33%)  30/99 (30%)  28/99 (28%)  30/99 (30%) |23/96 (24%)  13/99 (13%)  13/97 (13%)  14/99 (14%)  |
|POLY-3 ADJUSTED (b)|     34.9%        33.3%        30.0%        33.4%       |25.3%        14.0%        14.2%        15.3%        |
|TERMINAL (d)       |     23/76 (30%)  22/72 (31%)  25/84 (30%)  16/62 (26%) |12/70 (17%)  5/74 (7%)    8/79 (10%)   8/74 (11%)   |
|FIRST INCIDENCE    |     497          612          562          466         |552          64           513          467          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.283      P=0.491N     P=0.170N     P=0.425     |P=0.267N     P=0.053N     P=0.039N*    P=0.073N     |
|POLY 3             |     P=0.531N     P=0.474N     P=0.287N     P=0.478N    |P=0.263N     P=0.038N*    P=0.044N*    P=0.066N     |
|POLY 1.5           |     P=0.505N     P=0.436N     P=0.280N     P=0.437N    |P=0.263N     P=0.037N*    P=0.044N*    P=0.064N     |
|POLY 6             |     P=0.523      P=0.512N     P=0.291N     P=0.523N    |P=0.261N     P=0.041N*    P=0.047N*    P=0.068N     |
|LOGISTIC REGRESSION|     P=0.511N     P=0.422N     P=0.269N     P=0.369N    |P=0.220N     P=0.032N*    P=0.045N*    P=0.056N     |
|COCH-ARM / FISHERS |     P=0.468N     P=0.380N     P=0.269N     P=0.380N    |P=0.244N     P=0.039N*    P=0.044N*    P=0.058N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 6
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Infiltration Cellular Focal Lymphocyte                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    1/99 (1%)    2/99 (2%)    0/99 (0%)   |0/96 (0%)    0/99 (0%)    1/97 (1%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     3.3%         1.1%         2.2%         0.0%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     2/76 (3%)    1/72 (1%)    2/84 (2%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    1/79 (1%)    0/74 (0%)    |
|FIRST INCIDENCE    |     715          734 (T)      734 (T)      ---         |---          ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.194N     P=0.329N     P=0.460N     P=0.160N    |P=0.766N     (e)          P=0.524      (e)          |
|POLY 3             |     P=0.170N     P=0.322N     P=0.500N     P=0.135N    |P=0.765N     (e)          P=0.503      (e)          |
|POLY 1.5           |     P=0.165N     P=0.316N     P=0.500N     P=0.129N    |P=0.765N     (e)          P=0.503      (e)          |
|POLY 6             |     P=0.176N     P=0.329N     P=0.497N     P=0.142N    |P=0.765N     (e)          P=0.503      (e)          |
|LOGISTIC REGRESSION|     P=0.180N     P=0.331N     P=0.492N     P=0.145N    |(e)          (e)          P=0.524      (e)          |
|COCH-ARM / FISHERS |     P=0.159N     P=0.311N     P=0.500N     P=0.123N    |P=0.764N     (e)          P=0.503      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow                                                                                                                      |
|     Myelofibrosis                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/99 (1%)    2/99 (2%)    0/99 (0%)   |10/96 (10%)  18/99 (18%)  17/97 (18%)  10/99 (10%)  |
|POLY-3 ADJUSTED (b)|     0.0%         1.1%         2.2%         0.0%        |11.3%        20.0%        18.9%        11.1%        |
|TERMINAL (d)       |     0/76 (0%)    1/72 (1%)    1/84 (1%)    0/62 (0%)   |10/70 (14%)  17/74 (23%)  17/79 (22%)  8/74 (11%)   |
|FIRST INCIDENCE    |     ---          734 (T)      585          ---         |735 (T)      705          735 (T)      597          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.486N     P=0.489      P=0.252      (e)         |P=0.156N     P=0.097      P=0.177      P=0.547N     |
|POLY 3             |     P=0.466N     P=0.492      P=0.240      (e)         |P=0.164N     P=0.082      P=0.113      P=0.577N     |
|POLY 1.5           |     P=0.457N     P=0.495      P=0.239      (e)         |P=0.166N     P=0.084      P=0.112      P=0.577N     |
|POLY 6             |     P=0.477N     P=0.488      P=0.242      (e)         |P=0.158N     P=0.080      P=0.111      P=0.573N     |
|LOGISTIC REGRESSION|     P=0.427N     P=0.489      P=0.239      (e)         |P=0.161N     P=0.084      P=0.177      P=0.582N     |
|COCH-ARM / FISHERS |     P=0.444N     P=0.500      P=0.249      (e)         |P=0.158N     P=0.089      P=0.112      P=0.564N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 7
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone Marrow: Myeloid Cell                                                                                                        |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    3/99 (3%)    0/99 (0%)    5/99 (5%)   |3/96 (3%)    0/99 (0%)    0/97 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     2.2%         3.4%         0.0%         5.8%        |3.4%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     2/76 (3%)    0/72 (0%)    0/84 (0%)    3/62 (5%)   |1/70 (1%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      562          ---          671         |666          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.068      P=0.481      P=0.217N     P=0.153     |P=0.238N     P=0.118N     P=0.113N     P=0.118N     |
|POLY 3             |     P=0.093      P=0.487      P=0.238N     P=0.193     |P=0.236N     P=0.119N     P=0.119N     P=0.120N     |
|POLY 1.5           |     P=0.098      P=0.492      P=0.239N     P=0.204     |P=0.236N     P=0.118N     P=0.119N     P=0.119N     |
|POLY 6             |     P=0.087      P=0.482      P=0.237N     P=0.181     |P=0.234N     P=0.120N     P=0.120N     P=0.120N     |
|LOGISTIC REGRESSION|     P=0.115      P=0.545      (e)          P=0.178     |P=0.239N     P=0.118N     P=0.120N     P=0.118N     |
|COCH-ARM / FISHERS |     P=0.107      P=0.500      P=0.249N     P=0.222     |P=0.237N     P=0.117N     P=0.121N     P=0.117N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Bone: Cartilage, Epiphysis, Femur                                                                                                |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/97 (0%)    0/100 (0%)   2/99 (2%)    0/99 (0%)   |0/100 (0%)   0/100 (0%)   0/99 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         2.2%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/75 (0%)    0/72 (0%)    1/84 (1%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    0/78 (0%)    0/73 (0%)    |
|FIRST INCIDENCE    |     ---          ---          585          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.667N     (e)          P=0.253      (e)         |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.650N     (e)          P=0.246      (e)         |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.643N     (e)          P=0.245      (e)         |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.657N     (e)          P=0.249      (e)         |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.596N     (e)          P=0.239      (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.633N     (e)          P=0.254      (e)         |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 8
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Brain: Hypothalamus                                                                                                              |
|     Compression                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/99 (0%)    0/100 (0%)   0/99 (0%)   |0/99 (0%)    2/100 (2%)   3/98 (3%)    3/98 (3%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         2.2%         3.3%         3.4%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    2/74 (3%)    3/79 (4%)    2/74 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          735 (T)      735 (T)      733          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.249      P=0.251      P=0.145      P=0.134      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.236      P=0.240      P=0.122      P=0.118      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.235      P=0.240      P=0.121      P=0.118      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.239      P=0.239      P=0.123      P=0.119      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.247      P=0.251      P=0.145      P=0.126      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.239      P=0.251      P=0.121      P=0.121      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Brain: Thalamus                                                                                                                  |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     70/100 (70%) 68/99 (69%)  60/100 (60%) 78/99 (79%) |47/99 (47%)  68/100 (68%) 55/98 (56%)  60/98 (61%)  |
|POLY-3 ADJUSTED (b)|     71.8%        70.1%        63.3%        80.3%       |50.4%        71.3%        58.7%        63.4%        |
|TERMINAL (d)       |     55/76 (72%)  46/72 (64%)  55/84 (66%)  48/62 (77%) |35/70 (50%)  51/74 (69%)  45/79 (57%)  43/74 (58%)  |
|FIRST INCIDENCE    |     386          400          549          370         |461          387          472          291          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P<0.001 **   P=0.470      P=0.023N*    P=0.009 **  |P=0.398      P=0.014 *    P=0.395      P=0.113      |
|POLY 3             |     P=0.031 *    P=0.463N     P=0.132N     P=0.105     |P=0.357      P=0.002 **   P=0.158      P=0.048 *    |
|POLY 1.5           |     P=0.030 *    P=0.472N     P=0.116N     P=0.103     |P=0.320      P=0.002 **   P=0.151      P=0.039 *    |
|POLY 6             |     P=0.033 *    P=0.445N     P=0.146N     P=0.110     |P=0.408      P=0.002 **   P=0.158      P=0.059      |
|LOGISTIC REGRESSION|     P=0.033 *    P=0.445N     P=0.086N     P=0.134     |P=0.279      P=0.002 **   P=0.153      P=0.034 *    |
|COCH-ARM / FISHERS |     P=0.031 *    P=0.481N     P=0.091N     P=0.104     |P=0.297      P=0.003 **   P=0.142      P=0.036 *    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 9
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Clitoral Gland                                                                                                                   |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |80/89 (90%)  75/84 (89%)  77/85 (91%)  76/84 (90%)  |
|POLY-3 ADJUSTED (b)|                                                        |92.1%        90.4%        91.6%        91.2%        |
|TERMINAL (d)       |                                                        |64/69 (93%)  61/69 (88%)  69/75 (92%)  63/69 (91%)  |
|FIRST INCIDENCE    |                                                        |397          387          578          291          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.495N     P=0.264N     P=0.096N     P=0.314N     |
|POLY 3             |                                                        |P=0.562N     P=0.448N     P=0.568N     P=0.524N     |
|POLY 1.5           |                                                        |P=0.570N     P=0.507N     P=0.589N     P=0.560N     |
|POLY 6             |                                                        |P=0.559N     P=0.394N     P=0.562N     P=0.496N     |
|LOGISTIC REGRESSION|                                                        |P=0.520      P=0.586N     P=0.514N     P=0.572      |
|COCH-ARM / FISHERS |                                                        |P=0.493      P=0.547N     P=0.540      P=0.551      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Clitoral Gland                                                                                                                   |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |84/89 (94%)  82/84 (98%)  81/85 (95%)  76/84 (90%)  |
|POLY-3 ADJUSTED (b)|                                                        |96.0%        98.8%        96.4%        92.9%        |
|TERMINAL (d)       |                                                        |67/69 (97%)  68/69 (99%)  73/75 (97%)  65/69 (94%)  |
|FIRST INCIDENCE    |                                                        |397          387          578          477          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.119N     P=0.425N     P=0.069N     P=0.111N     |
|POLY 3             |                                                        |P=0.066N     P=0.242      P=0.607      P=0.286N     |
|POLY 1.5           |                                                        |P=0.050N     P=0.198      P=0.597      P=0.262N     |
|POLY 6             |                                                        |P=0.092N     P=0.298      P=0.608      P=0.321N     |
|LOGISTIC REGRESSION|                                                        |P=0.031N*    P=0.168      P=0.555N     P=0.196N     |
|COCH-ARM / FISHERS |                                                        |P=0.054N     P=0.246      P=0.529      P=0.247N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 10
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Epididymis                                                                                                                       |
|     Granuloma Sperm                                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/98 (2%)    3/99 (3%)    2/99 (2%)    2/96 (2%)   |                                                    |
|POLY-3 ADJUSTED (b)|     2.2%         3.4%         2.2%         2.4%        |                                                    |
|TERMINAL (d)       |     1/76 (1%)    3/72 (4%)    2/84 (2%)    1/62 (2%)   |                                                    |
|FIRST INCIDENCE    |     684          734 (T)      734 (T)      480         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.617N     P=0.472      P=0.664N     P=0.640     |                                                    |
|POLY 3             |     P=0.570N     P=0.484      P=0.688N     P=0.663     |                                                    |
|POLY 1.5           |     P=0.560N     P=0.492      P=0.688N     P=0.672     |                                                    |
|POLY 6             |     P=0.581N     P=0.474      P=0.686N     P=0.651     |                                                    |
|LOGISTIC REGRESSION|     P=0.540N     P=0.479      P=0.688N     P=0.643N    |                                                    |
|COCH-ARM / FISHERS |     P=0.547N     P=0.505      P=0.686N     P=0.682     |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Epididymis                                                                                                                       |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     24/98 (24%)  11/99 (11%)  21/99 (21%)  18/96 (19%) |                                                    |
|POLY-3 ADJUSTED (b)|     26.1%        12.5%        22.5%        21.4%       |                                                    |
|TERMINAL (d)       |     21/76 (28%)  11/72 (15%)  19/84 (23%)  14/62 (23%) |                                                    |
|FIRST INCIDENCE    |     624          734 (T)      585          609         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.275      P=0.019N*    P=0.250N     P=0.432N    |                                                    |
|POLY 3             |     P=0.447      P=0.016N*    P=0.341N     P=0.288N    |                                                    |
|POLY 1.5           |     P=0.471      P=0.013N*    P=0.346N     P=0.256N    |                                                    |
|POLY 6             |     P=0.420      P=0.019N*    P=0.332N     P=0.326N    |                                                    |
|LOGISTIC REGRESSION|     P=0.398      P=0.019N*    P=0.343N     P=0.321N    |                                                    |
|COCH-ARM / FISHERS |     P=0.510      P=0.011N*    P=0.353N     P=0.213N    |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 11
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Epididymis                                                                                                                       |
|     Spermatocele                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/98 (2%)    0/99 (0%)    3/99 (3%)    7/96 (7%)   |                                                    |
|POLY-3 ADJUSTED (b)|     2.2%         0.0%         3.2%         8.3%        |                                                    |
|TERMINAL (d)       |     2/76 (3%)    0/72 (0%)    3/84 (4%)    4/62 (7%)   |                                                    |
|FIRST INCIDENCE    |     734 (T)      ---          734 (T)      500         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.002 **   P=0.251N     P=0.545      P=0.054     |                                                    |
|POLY 3             |     P=0.004 **   P=0.246N     P=0.507      P=0.068     |                                                    |
|POLY 1.5           |     P=0.004 **   P=0.242N     P=0.506      P=0.073     |                                                    |
|POLY 6             |     P=0.003 **   P=0.250N     P=0.510      P=0.063     |                                                    |
|LOGISTIC REGRESSION|     P=0.004 **   (e)          P=0.545      P=0.088     |                                                    |
|COCH-ARM / FISHERS |     P=0.004 **   P=0.246N     P=0.505      P=0.080     |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Eye: Cornea                                                                                                                      |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/0 (0%)     1/2 (50%)    0/0 (0%)     0/2 (0%)    |2/2 (100%)   0/2 (0%)     1/1 (100%)   0/1 (0%)     |
|POLY-3 ADJUSTED (b)|     0.0%         77.6%        0.0%         0.0%        |100.0%       0.0%         100.0%       0.0%         |
|TERMINAL (d)       |     0/0 (0%)     1/1 (100%)   0/0 (0%)     0/1 (0%)    |2/2 (100%)   0/1 (0%)     1/1 (100%)   0/1 (0%)     |
|FIRST INCIDENCE    |     ---          734 (T)      ---          ---         |735 (T)      ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.421N     P=1.000N     (e)          (e)         |P=0.399N     P=0.362N     (e)          P=0.362N     |
|POLY 3             |     P=1.000      P=1.000N     (e)          (e)         |P=0.215N     P=0.317N     (e)          P=1.000      |
|POLY 1.5           |     P=1.000      P=1.000N     (e)          (e)         |P=0.214N     P=0.299N     (e)          P=1.000      |
|POLY 6             |     P=1.000      P=1.000N     (e)          (e)         |P=0.215N     P=0.318N     (e)          P=1.000      |
|LOGISTIC REGRESSION|     (e)          P=1.000N     (e)          (e)         |P=0.399N     (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.409N     P=1.000      (e)          (e)         |P=0.498N     P=0.167N     (e)          P=0.333N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 12
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Gallbladder: Epithelium                                                                                                          |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/84 (0%)    4/83 (5%)    2/84 (2%)    2/75 (3%)   |5/70 (7%)    14/84 (17%)  2/87 (2%)    3/79 (4%)    |
|POLY-3 ADJUSTED (b)|     0.0%         5.2%         2.5%         2.8%        |7.5%         17.5%        2.4%         4.0%         |
|TERMINAL (d)       |     0/69 (0%)    4/68 (6%)    2/77 (3%)    2/60 (3%)   |4/62 (7%)    10/72 (14%)  2/79 (3%)    3/70 (4%)    |
|FIRST INCIDENCE    |     ---          734 (T)      734 (T)      734 (T)     |725          461          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.571      P=0.063      P=0.263      P=0.209     |P=0.039N*    P=0.050      P=0.144N     P=0.301N     |
|POLY 3             |     P=0.587      P=0.061      P=0.242      P=0.213     |P=0.037N*    P=0.057      P=0.140N     P=0.300N     |
|POLY 1.5           |     P=0.588      P=0.061      P=0.240      P=0.214     |P=0.037N*    P=0.057      P=0.140N     P=0.300N     |
|POLY 6             |     P=0.585      P=0.061      P=0.245      P=0.213     |P=0.036N*    P=0.058      P=0.141N     P=0.301N     |
|LOGISTIC REGRESSION|     (e)          P=0.063      P=0.263      P=0.209     |P=0.038N*    P=0.060      P=0.143N     P=0.300N     |
|COCH-ARM / FISHERS |     P=0.588      P=0.059      P=0.249      P=0.221     |P=0.038N*    P=0.060      P=0.142N     P=0.294N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Harderian Gland                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/99 (11%)  13/99 (13%)  16/100 (16%) 9/96 (9%)   |27/98 (28%)  23/97 (24%)  36/99 (36%)  32/96 (33%)  |
|POLY-3 ADJUSTED (b)|     12.0%        14.7%        17.1%        10.7%       |30.2%        25.8%        38.9%        36.1%        |
|TERMINAL (d)       |     11/76 (15%)  13/72 (18%)  15/84 (18%)  6/62 (10%)  |25/70 (36%)  21/74 (28%)  31/79 (39%)  25/74 (34%)  |
|FIRST INCIDENCE    |     734 (T)      734 (T)      562          510         |551          545          578          566          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.406N     P=0.357      P=0.286      P=0.584N    |P=0.202      P=0.237N     P=0.239      P=0.349      |
|POLY 3             |     P=0.286N     P=0.371      P=0.217      P=0.485N    |P=0.157      P=0.316N     P=0.137      P=0.245      |
|POLY 1.5           |     P=0.271N     P=0.388      P=0.214      P=0.465N    |P=0.149      P=0.322N     P=0.130      P=0.233      |
|POLY 6             |     P=0.305N     P=0.352      P=0.223      P=0.507N    |P=0.173      P=0.308N     P=0.142      P=0.266      |
|LOGISTIC REGRESSION|     P=0.310N     P=0.357      P=0.217      P=0.494N    |P=0.158      P=0.319N     P=0.129      P=0.244      |
|COCH-ARM / FISHERS |     P=0.248N     P=0.414      P=0.212      P=0.436N    |P=0.156      P=0.327N     P=0.120      P=0.236      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 13
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart                                                                                                                            |
|     Inflammation Focal                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   1/100 (1%)   5/100 (5%)   2/99 (2%)   |0/98 (0%)    0/100 (0%)   0/100 (0%)   0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     2.1%         1.1%         5.4%         2.3%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/76 (1%)    1/72 (1%)    4/84 (5%)    2/62 (3%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     386          734 (T)      636          734 (T)     |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.543      P=0.512N     P=0.252      P=0.636     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.586      P=0.518N     P=0.221      P=0.661     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.599      P=0.511N     P=0.220      P=0.672     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.571      P=0.525N     P=0.225      P=0.648     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.605N     P=0.432N     P=0.216      P=0.629N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.618      P=0.500N     P=0.222      P=0.686     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart: Myocardium                                                                                                                |
|     Degeneration                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   2/100 (2%)   0/99 (0%)   |1/98 (1%)    4/100 (4%)   0/100 (0%)   1/99 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         2.1%         0.0%        |1.1%         4.4%         0.0%         1.1%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    1/84 (1%)    0/62 (0%)   |1/70 (1%)    2/74 (3%)    0/79 (0%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          ---          636          ---         |735 (T)      387          ---          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.668N     (e)          P=0.251      (e)         |P=0.344N     P=0.197      P=0.476N     P=0.749N     |
|POLY 3             |     P=0.651N     (e)          P=0.241      (e)         |P=0.348N     P=0.190      P=0.495N     P=0.759N     |
|POLY 1.5           |     P=0.645N     (e)          P=0.240      (e)         |P=0.348N     P=0.189      P=0.496N     P=0.760N     |
|POLY 6             |     P=0.659N     (e)          P=0.243      (e)         |P=0.346N     P=0.190      P=0.495N     P=0.758N     |
|LOGISTIC REGRESSION|     P=0.623N     (e)          P=0.237      (e)         |P=0.342N     P=0.194      (e)          P=0.749N     |
|COCH-ARM / FISHERS |     P=0.637N     (e)          P=0.249      (e)         |P=0.347N     P=0.191      P=0.495N     P=0.749N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 14
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Heart: Myocardium                                                                                                                |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/99 (0%)   |1/98 (1%)    3/100 (3%)   1/100 (1%)   0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |1.1%         3.3%         1.1%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |1/70 (1%)    1/74 (1%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      721          692          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.162N     P=0.324      P=0.750N     P=0.489N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.165N     P=0.313      P=0.755N     P=0.499N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.165N     P=0.313      P=0.756N     P=0.500N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.164N     P=0.312      P=0.755N     P=0.498N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.164N     P=0.312      P=0.757N     (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.164N     P=0.318      P=0.746N     P=0.497N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Intestine Large, Cecum: Lymphoid Tissue                                                                                          |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     41/90 (46%)  33/89 (37%)  37/92 (40%)  20/81 (25%) |25/78 (32%)  33/87 (38%)  35/90 (39%)  24/87 (28%)  |
|POLY-3 ADJUSTED (b)|     47.4%        39.1%        42.2%        26.6%       |32.7%        40.1%        40.1%        28.3%        |
|TERMINAL (d)       |     37/76 (49%)  29/72 (40%)  37/84 (44%)  15/62 (24%) |22/69 (32%)  31/74 (42%)  32/79 (41%)  18/74 (24%)  |
|FIRST INCIDENCE    |     624          612          734 (T)      666         |397          64           21           85           |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.018N*    P=0.230N     P=0.153N     P=0.014N*   |P=0.138N     P=0.204      P=0.203      P=0.410N     |
|POLY 3             |     P=0.007N**   P=0.169N     P=0.293N     P=0.004N**  |P=0.092N     P=0.209      P=0.204      P=0.332N     |
|POLY 1.5           |     P=0.006N**   P=0.162N     P=0.288N     P=0.004N**  |P=0.097N     P=0.228      P=0.212      P=0.329N     |
|POLY 6             |     P=0.008N**   P=0.181N     P=0.298N     P=0.005N**  |P=0.087N     P=0.193      P=0.193      P=0.334N     |
|LOGISTIC REGRESSION|     P=0.009N**   P=0.187N     P=0.268N     P=0.006N**  |P=0.105N     P=0.275      P=0.241      P=0.281N     |
|COCH-ARM / FISHERS |     P=0.006N**   P=0.159N     P=0.282N     P=0.003N**  |P=0.106N     P=0.266      P=0.224      P=0.324N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 15
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Intestine Small, Ileum: Muscularis                                                                                               |
|     Hypertrophy                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/91 (0%)    9/89 (10%)   8/92 (9%)    0/81 (0%)   |17/78 (22%)  16/85 (19%)  20/90 (22%)  17/87 (20%)  |
|POLY-3 ADJUSTED (b)|     0.0%         10.6%        9.0%         0.0%        |22.8%        19.9%        23.0%        20.7%        |
|TERMINAL (d)       |     0/76 (0%)    5/72 (7%)    6/84 (7%)    0/62 (0%)   |16/69 (23%)  15/74 (20%)  18/79 (23%)  16/74 (22%)  |
|FIRST INCIDENCE    |     ---          589          562          ---         |608          726          21           690          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.049N*    P=0.003 **   P=0.008 **   (e)         |P=0.523N     P=0.414N     P=0.523      P=0.492N     |
|POLY 3             |     P=0.044N*    P=0.002 **   P=0.006 **   (e)         |P=0.482N     P=0.407N     P=0.561      P=0.449N     |
|POLY 1.5           |     P=0.042N*    P=0.002 **   P=0.005 **   (e)         |P=0.478N     P=0.404N     P=0.561      P=0.444N     |
|POLY 6             |     P=0.047N*    P=0.002 **   P=0.006 **   (e)         |P=0.490N     P=0.412N     P=0.550      P=0.459N     |
|LOGISTIC REGRESSION|     P=0.037N*    P=0.003 **   P=0.006 **   (e)         |P=0.472N     P=0.400N     P=0.555      P=0.447N     |
|COCH-ARM / FISHERS |     P=0.042N*    P<0.001 **   P=0.003 **   (e)         |P=0.471N     P=0.391N     P=0.549      P=0.434N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Intestine Small, Ileum: Peyer's Patch                                                                                            |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/91 (0%)    1/89 (1%)    0/92 (0%)    1/81 (1%)   |4/78 (5%)    2/85 (2%)    4/90 (4%)    4/87 (5%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.2%         0.0%         1.3%        |5.3%         2.5%         4.7%         4.9%         |
|TERMINAL (d)       |     0/76 (0%)    1/72 (1%)    0/84 (0%)    1/62 (2%)   |3/69 (4%)    2/74 (3%)    3/79 (4%)    4/74 (5%)    |
|FIRST INCIDENCE    |     ---          734 (T)      ---          734 (T)     |334          735 (T)      578          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.453      P=0.489      (e)          P=0.459     |P=0.457      P=0.314N     P=0.584N     P=0.609N     |
|POLY 3             |     P=0.467      P=0.493      (e)          P=0.471     |P=0.476      P=0.309N     P=0.568N     P=0.592N     |
|POLY 1.5           |     P=0.469      P=0.494      (e)          P=0.473     |P=0.478      P=0.308N     P=0.567N     P=0.589N     |
|POLY 6             |     P=0.463      P=0.491      (e)          P=0.468     |P=0.472      P=0.310N     P=0.571N     P=0.596N     |
|LOGISTIC REGRESSION|     (e)          P=0.489      (e)          P=0.459     |P=0.482      P=0.275N     P=0.538N     P=0.567N     |
|COCH-ARM / FISHERS |     P=0.473      P=0.494      (e)          P=0.471     |P=0.481      P=0.301N     P=0.558N     P=0.578N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 16
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Intestine Small, Jejunum: Muscularis                                                                                             |
|     Hypertrophy                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/89 (0%)    3/94 (3%)    1/93 (1%)    0/80 (0%)   |6/79 (8%)    8/86 (9%)    5/89 (6%)    3/91 (3%)    |
|POLY-3 ADJUSTED (b)|     0.0%         3.5%         1.1%         0.0%        |7.9%         9.9%         5.9%         3.5%         |
|TERMINAL (d)       |     0/76 (0%)    3/72 (4%)    0/84 (0%)    0/62 (0%)   |6/69 (9%)    8/74 (11%)   5/79 (6%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          734 (T)      636          ---         |735 (T)      735 (T)      735 (T)      183          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.266N     P=0.113      P=0.498      (e)         |P=0.113N     P=0.443      P=0.408N     P=0.224N     |
|POLY 3             |     P=0.276N     P=0.121      P=0.508      (e)         |P=0.091N     P=0.436      P=0.425N     P=0.188N     |
|POLY 1.5           |     P=0.270N     P=0.125      P=0.508      (e)         |P=0.091N     P=0.440      P=0.425N     P=0.187N     |
|POLY 6             |     P=0.283N     P=0.116      P=0.508      (e)         |P=0.092N     P=0.435      P=0.427N     P=0.189N     |
|LOGISTIC REGRESSION|     P=0.261N     P=0.113      P=0.516      (e)         |P=0.089N     P=0.443      P=0.408N     P=0.137N     |
|COCH-ARM / FISHERS |     P=0.262N     P=0.133      P=0.511      (e)         |P=0.091N     P=0.456      P=0.417N     P=0.183N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Intestine Small, Jejunum: Peyer's Patch                                                                                          |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/89 (1%)    5/94 (5%)    1/93 (1%)    0/80 (0%)   |3/79 (4%)    6/86 (7%)    5/89 (6%)    0/91 (0%)    |
|POLY-3 ADJUSTED (b)|     1.2%         5.9%         1.1%         0.0%        |4.0%         7.4%         5.9%         0.0%         |
|TERMINAL (d)       |     1/76 (1%)    5/72 (7%)    1/84 (1%)    0/62 (0%)   |3/69 (4%)    6/74 (8%)    5/79 (6%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      ---         |735 (T)      735 (T)      735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.105N     P=0.094      P=0.739N     P=0.541N    |P=0.029N*    P=0.281      P=0.434      P=0.110N     |
|POLY 3             |     P=0.108N     P=0.105      P=0.752N     P=0.530N    |P=0.026N*    P=0.277      P=0.420      P=0.101N     |
|POLY 1.5           |     P=0.104N     P=0.110      P=0.752N     P=0.527N    |P=0.026N*    P=0.280      P=0.420      P=0.101N     |
|POLY 6             |     P=0.112N     P=0.099      P=0.752N     P=0.534N    |P=0.026N*    P=0.276      P=0.418      P=0.102N     |
|LOGISTIC REGRESSION|     P=0.105N     P=0.094      P=0.739N     (e)         |P=0.029N*    P=0.281      P=0.434      (e)          |
|COCH-ARM / FISHERS |     P=0.100N     P=0.119      P=0.740N     P=0.527N    |P=0.025N*    P=0.292      P=0.428      P=0.098N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 17
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Islets, Pancreatic                                                                                                               |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     97/99 (98%)  88/99 (89%)  84/98 (86%)  84/97 (87%) |40/87 (46%)  60/95 (63%)  42/94 (45%)  48/94 (51%)  |
|POLY-3 ADJUSTED (b)|     98.2%        89.3%        87.6%        88.7%       |47.7%        65.6%        46.0%        52.7%        |
|TERMINAL (d)       |     75/76 (99%)  64/72 (89%)  73/84 (87%)  57/62 (92%) |35/70 (50%)  50/74 (68%)  33/79 (42%)  37/74 (50%)  |
|FIRST INCIDENCE    |     386          400          527          448         |334          387          472          474          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.147      P=0.341N     P=0.002N**   P=0.388     |P=0.452N     P=0.009 **   P=0.437N     P=0.247      |
|POLY 3             |     P=0.133N     P=0.010N*    P=0.003N**   P=0.005N**  |P=0.372N     P=0.011 *    P=0.467N     P=0.307      |
|POLY 1.5           |     P=0.103N     P=0.010N*    P=0.002N**   P=0.004N**  |P=0.384N     P=0.011 *    P=0.483N     P=0.295      |
|POLY 6             |     P=0.185N     P=0.009N**   P=0.004N**   P=0.008N**  |P=0.358N     P=0.011 *    P=0.453N     P=0.320      |
|LOGISTIC REGRESSION|     P=0.091N     P=0.009N**   P=0.002N**   P=0.004N**  |P=0.391N     P=0.013 *    P=0.490N     P=0.292      |
|COCH-ARM / FISHERS |     P=0.075N     P=0.009N**   P<0.001N**   P=0.002N**  |P=0.391N     P=0.015 *    P=0.490N     P=0.296      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Islets, Pancreatic                                                                                                               |
|     Infiltration Cellular Focal Mixed Cell                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/99 (0%)    0/98 (0%)    0/97 (0%)   |0/87 (0%)    2/95 (2%)    1/94 (1%)    3/94 (3%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         2.3%         1.1%         3.4%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    2/74 (3%)    1/79 (1%)    3/74 (4%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.161      P=0.251      P=0.524      P=0.132      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.165      P=0.251      P=0.514      P=0.133      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.165      P=0.253      P=0.514      P=0.134      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.165      P=0.249      P=0.512      P=0.132      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |(e)          P=0.251      P=0.524      P=0.132      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.167      P=0.271      P=0.519      P=0.138      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 18
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Hydronephrosis                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    1/98 (1%)    3/99 (3%)    0/96 (0%)   |0/92 (0%)    1/96 (1%)    0/98 (0%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     1.1%         1.1%         3.2%         0.0%        |0.0%         1.1%         0.0%         1.1%         |
|TERMINAL (d)       |     1/76 (1%)    0/72 (0%)    1/84 (1%)    0/62 (0%)   |0/70 (0%)    1/74 (1%)    0/79 (0%)    1/74 (1%)    |
|FIRST INCIDENCE    |     734 (T)      719          585          ---         |---          735 (T)      ---          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.331N     P=0.753      P=0.327      P=0.541N    |P=0.503      P=0.511      (e)          P=0.511      |
|POLY 3             |     P=0.316N     P=0.750      P=0.312      P=0.518N    |P=0.500      P=0.503      (e)          P=0.506      |
|POLY 1.5           |     P=0.309N     P=0.753      P=0.310      P=0.513N    |P=0.501      P=0.505      (e)          P=0.507      |
|POLY 6             |     P=0.325N     P=0.747      P=0.317      P=0.523N    |P=0.499      P=0.503      (e)          P=0.505      |
|LOGISTIC REGRESSION|     P=0.282N     P=0.747      P=0.305      (e)         |(e)          P=0.511      (e)          P=0.511      |
|COCH-ARM / FISHERS |     P=0.300N     P=0.749      P=0.311      P=0.508N    |P=0.508      P=0.511      (e)          P=0.516      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney                                                                                                                           |
|     Infarct Focal                                                                                                               |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    3/98 (3%)    2/99 (2%)    0/96 (0%)   |0/92 (0%)    0/96 (0%)    0/98 (0%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     1.1%         3.4%         2.2%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    3/72 (4%)    1/84 (1%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     717          734 (T)      562          ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.192N     P=0.290      P=0.520      P=0.530N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.179N     P=0.290      P=0.504      P=0.518N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.173N     P=0.295      P=0.502      P=0.513N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.187N     P=0.284      P=0.507      P=0.524N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.163N     P=0.282      P=0.499      P=0.517N    |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.165N     P=0.307      P=0.500      P=0.508N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 19
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex                                                                                                                   |
|     Congestion                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    0/98 (0%)    2/99 (2%)    0/96 (0%)   |0/92 (0%)    0/96 (0%)    0/98 (0%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     2.2%         0.0%         2.2%         0.0%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     2/76 (3%)    0/72 (0%)    2/84 (2%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      ---          734 (T)      ---         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.361N     P=0.251N     P=0.657N     P=0.285N    |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.328N     P=0.249N     P=0.691N     P=0.259N    |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.324N     P=0.246N     P=0.692N     P=0.253N    |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.333N     P=0.253N     P=0.688N     P=0.265N    |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.361N     (e)          P=0.657N     (e)         |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.319N     P=0.251N     P=0.689N     P=0.256N    |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex                                                                                                                   |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     23/99 (23%)  30/98 (31%)  27/99 (27%)  17/96 (18%) |0/92 (0%)    1/96 (1%)    0/98 (0%)    3/98 (3%)    |
|POLY-3 ADJUSTED (b)|     24.7%        34.0%        29.1%        20.2%       |0.0%         1.1%         0.0%         3.4%         |
|TERMINAL (d)       |     19/76 (25%)  26/72 (36%)  24/84 (29%)  16/62 (26%) |0/70 (0%)    0/74 (0%)    0/79 (0%)    3/74 (4%)    |
|FIRST INCIDENCE    |     579          612          636          708         |---          705          ---          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.158N     P=0.117      P=0.451      P=0.421N    |P=0.044 *    P=0.502      (e)          P=0.132      |
|POLY 3             |     P=0.074N     P=0.113      P=0.307      P=0.294N    |P=0.045 *    P=0.504      (e)          P=0.126      |
|POLY 1.5           |     P=0.061N     P=0.129      P=0.308      P=0.261N    |P=0.045 *    P=0.505      (e)          P=0.128      |
|POLY 6             |     P=0.093N     P=0.096      P=0.312      P=0.338N    |P=0.045 *    P=0.503      (e)          P=0.126      |
|LOGISTIC REGRESSION|     P=0.082N     P=0.106      P=0.322      P=0.321N    |P=0.045 *    P=0.509      (e)          P=0.132      |
|COCH-ARM / FISHERS |     P=0.047N*    P=0.157      P=0.312      P=0.219N    |P=0.047 *    P=0.511      (e)          P=0.135      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 20
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex                                                                                                                   |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     19/99 (19%)  18/98 (18%)  20/99 (20%)  16/96 (17%) |24/92 (26%)  17/96 (18%)  21/98 (21%)  15/98 (15%)  |
|POLY-3 ADJUSTED (b)|     20.4%        20.4%        21.5%        18.9%       |27.5%        19.4%        23.1%        16.9%        |
|TERMINAL (d)       |     16/76 (21%)  15/72 (21%)  19/84 (23%)  14/62 (23%) |20/70 (29%)  14/74 (19%)  20/79 (25%)  14/74 (19%)  |
|FIRST INCIDENCE    |     579          653          590          518         |542          705          659          699          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.513      P=0.571      P=0.519N     P=0.550     |P=0.128N     P=0.114N     P=0.230N     P=0.056N     |
|POLY 3             |     P=0.422N     P=0.571      P=0.497      P=0.473N    |P=0.127N     P=0.137N     P=0.307N     P=0.064N     |
|POLY 1.5           |     P=0.394N     P=0.550N     P=0.497      P=0.440N    |P=0.124N     P=0.129N     P=0.297N     P=0.060N     |
|POLY 6             |     P=0.458N     P=0.545      P=0.502      P=0.515N    |P=0.128N     P=0.145N     P=0.326N     P=0.068N     |
|LOGISTIC REGRESSION|     P=0.438N     P=0.572N     P=0.506      P=0.466N    |P=0.125N     P=0.130N     P=0.298N     P=0.061N     |
|COCH-ARM / FISHERS |     P=0.356N     P=0.514N     P=0.500      P=0.393N    |P=0.110N     P=0.112N     P=0.280N     P=0.048N*    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex                                                                                                                   |
|     Metaplasia Focal Osseous                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/99 (4%)    4/98 (4%)    8/99 (8%)    2/96 (2%)   |4/92 (4%)    3/96 (3%)    3/98 (3%)    3/98 (3%)    |
|POLY-3 ADJUSTED (b)|     4.3%         4.5%         8.6%         2.4%        |4.6%         3.4%         3.3%         3.4%         |
|TERMINAL (d)       |     3/76 (4%)    3/72 (4%)    5/84 (6%)    1/62 (2%)   |1/70 (1%)    2/74 (3%)    3/79 (4%)    2/74 (3%)    |
|FIRST INCIDENCE    |     666          660          640          545         |397          698          735 (T)      654          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.284N     P=0.603      P=0.223      P=0.418N    |P=0.522N     P=0.485N     P=0.456N     P=0.484N     |
|POLY 3             |     P=0.242N     P=0.615      P=0.190      P=0.379N    |P=0.518N     P=0.498N     P=0.481N     P=0.491N     |
|POLY 1.5           |     P=0.232N     P=0.623      P=0.188      P=0.369N    |P=0.516N     P=0.492N     P=0.476N     P=0.485N     |
|POLY 6             |     P=0.254N     P=0.607      P=0.196      P=0.392N    |P=0.518N     P=0.502N     P=0.488N     P=0.494N     |
|LOGISTIC REGRESSION|     P=0.217N     P=0.621      P=0.186      P=0.332N    |P=0.493N     P=0.434N     P=0.439N     P=0.409N     |
|COCH-ARM / FISHERS |     P=0.218N     P=0.634      P=0.186      P=0.356N    |P=0.505N     P=0.476N     P=0.465N     P=0.465N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 21
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex                                                                                                                   |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     79/99 (80%)  78/98 (80%)  78/99 (79%)  66/96 (69%) |1/92 (1%)    1/96 (1%)    0/98 (0%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     83.6%        85.0%        81.4%        72.5%       |1.2%         1.1%         0.0%         0.0%         |
|TERMINAL (d)       |     66/76 (87%)  66/72 (92%)  69/84 (82%)  43/62 (69%) |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     579          542          549          466         |625          496          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.534      P=0.355      P=0.142N     P=0.536     |P=0.369N     P=0.759N     P=0.496N     P=0.502N     |
|POLY 3             |     P=0.010N*    P=0.479      P=0.412N     P=0.042N*   |P=0.362N     P=0.756N     P=0.491N     P=0.495N     |
|POLY 1.5           |     P=0.014N*    P=0.523      P=0.451N     P=0.046N*   |P=0.361N     P=0.755N     P=0.490N     P=0.493N     |
|POLY 6             |     P=0.008N**   P=0.430      P=0.356N     P=0.037N*   |P=0.362N     P=0.757N     P=0.493N     P=0.497N     |
|LOGISTIC REGRESSION|     P=0.057N     P=0.322      P=0.503N     P=0.121N    |P=0.319N     P=0.690N     P=0.460N     P=0.448N     |
|COCH-ARM / FISHERS |     P=0.022N*    P=0.556N     P=0.500N     P=0.054N    |P=0.359N     P=0.741N     P=0.484N     P=0.484N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex, Renal Tubule                                                                                                     |
|     Degeneration                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     72/99 (73%)  75/98 (77%)  76/99 (77%)  57/96 (59%) |4/99 (4%)    2/98 (2%)    2/99 (2%)    1/96 (1%)    |
|POLY-3 ADJUSTED (b)|     77.0%        82.9%        81.0%        65.3%       |4.4%         2.3%         2.2%         1.2%         |
|TERMINAL (d)       |     62/76 (82%)  64/72 (89%)  72/84 (86%)  42/62 (68%) |4/76 (5%)    2/72 (3%)    2/84 (2%)    1/62 (2%)    |
|FIRST INCIDENCE    |     603          400          556          525         |734 (T)      734 (T)      734 (T)      734 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.205N     P=0.171      P=0.373N     P=0.403N    |P=0.297N     P=0.364N     P=0.295N     P=0.248N     |
|POLY 3             |     P=0.003N**   P=0.192      P=0.299      P=0.050N    |P=0.254N     P=0.361N     P=0.337N     P=0.210N     |
|POLY 1.5           |     P=0.003N**   P=0.248      P=0.301      P=0.042N*   |P=0.248N     P=0.354N     P=0.339N     P=0.203N     |
|POLY 6             |     P=0.003N**   P=0.135      P=0.306      P=0.060N    |P=0.261N     P=0.369N     P=0.333N     P=0.219N     |
|LOGISTIC REGRESSION|     P=0.011N*    P=0.100      P=0.303      P=0.120N    |P=0.297N     P=0.364N     P=0.295N     P=0.248N     |
|COCH-ARM / FISHERS |     P=0.003N**   P=0.327      P=0.312      P=0.034N*   |P=0.239N     P=0.346N     P=0.341N     P=0.194N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 22
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Cortex, Renal Tubule                                                                                                     |
|     Dilatation                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    1/98 (1%)    1/99 (1%)    5/96 (5%)   |1/92 (1%)    1/96 (1%)    1/98 (1%)    0/98 (0%)    |
|POLY-3 ADJUSTED (b)|     2.2%         1.1%         1.1%         5.8%        |1.2%         1.1%         1.1%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    1/62 (2%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     520          560          527          518         |608          547          578          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.031 *    P=0.516N     P=0.501N     P=0.181     |P=0.341N     P=0.758      P=0.757N     P=0.504N     |
|POLY 3             |     P=0.036 *    P=0.518N     P=0.499N     P=0.190     |P=0.335N     P=0.756N     P=0.749N     P=0.495N     |
|POLY 1.5           |     P=0.037 *    P=0.512N     P=0.500N     P=0.197     |P=0.334N     P=0.755N     P=0.748N     P=0.494N     |
|POLY 6             |     P=0.034 *    P=0.524N     P=0.498N     P=0.181     |P=0.336N     P=0.757N     P=0.751N     P=0.497N     |
|LOGISTIC REGRESSION|     P=0.078      P=0.409N     P=0.501N     P=0.331     |P=0.286N     P=0.698N     P=0.711N     P=0.438N     |
|COCH-ARM / FISHERS |     P=0.039 *    P=0.504N     P=0.500N     P=0.210     |P=0.328N     P=0.741N     P=0.735N     P=0.484N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Medulla                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     54/99 (55%)  40/98 (41%)  56/99 (57%)  41/96 (43%) |47/92 (51%)  53/96 (55%)  56/98 (57%)  58/98 (59%)  |
|POLY-3 ADJUSTED (b)|     57.2%        45.1%        60.0%        47.9%       |52.8%        57.9%        60.8%        63.5%        |
|TERMINAL (d)       |     44/76 (58%)  37/72 (51%)  53/84 (63%)  34/62 (55%) |41/70 (59%)  43/74 (58%)  51/79 (65%)  48/74 (65%)  |
|FIRST INCIDENCE    |     520          589          590          604         |334          387          578          497          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.475      P=0.071N     P=0.390N     P=0.339N    |P=0.156      P=0.355      P=0.357      P=0.142      |
|POLY 3             |     P=0.259N     P=0.064N     P=0.404      P=0.132N    |P=0.133      P=0.293      P=0.171      P=0.094      |
|POLY 1.5           |     P=0.219N     P=0.050N     P=0.418      P=0.099N    |P=0.143      P=0.297      P=0.190      P=0.102      |
|POLY 6             |     P=0.312N     P=0.085N     P=0.393      P=0.181N    |P=0.138      P=0.297      P=0.151      P=0.096      |
|LOGISTIC REGRESSION|     P=0.313N     P=0.064N     P=0.456      P=0.147N    |P=0.165      P=0.325      P=0.225      P=0.124      |
|COCH-ARM / FISHERS |     P=0.172N     P=0.037N*    P=0.443      P=0.065N    |P=0.209      P=0.337      P=0.245      P=0.165      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 23
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Medulla                                                                                                                  |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    0/98 (0%)    0/99 (0%)    0/96 (0%)   |3/92 (3%)    1/96 (1%)    0/98 (0%)    2/98 (2%)    |
|POLY-3 ADJUSTED (b)|     1.1%         0.0%         0.0%         0.0%        |3.5%         1.1%         0.0%         2.3%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    1/74 (1%)    0/79 (0%)    2/74 (3%)    |
|FIRST INCIDENCE    |     666          ---          ---          ---         |625          735 (T)      ---          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.606N     P=0.524N     P=0.505N     P=0.521N    |P=0.583      P=0.298N     P=0.116N     P=0.484N     |
|POLY 3             |     P=0.599N     P=0.510N     P=0.500N     P=0.518N    |P=0.589      P=0.303N     P=0.113N     P=0.490N     |
|POLY 1.5           |     P=0.600N     P=0.507N     P=0.500N     P=0.513N    |P=0.589      P=0.300N     P=0.112N     P=0.486N     |
|POLY 6             |     P=0.599N     P=0.514N     P=0.498N     P=0.524N    |P=0.590      P=0.306N     P=0.115N     P=0.493N     |
|LOGISTIC REGRESSION|     P=0.583N     P=0.483N     P=0.501N     P=0.481N    |P=0.591      P=0.286N     P=0.106N     P=0.473N     |
|COCH-ARM / FISHERS |     P=0.601N     P=0.503N     P=0.500N     P=0.508N    |P=0.594      P=0.295N     P=0.112N     P=0.470N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Kidney: Pelvis                                                                                                                   |
|     Calculus Micro Observation Only                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/98 (0%)    0/99 (0%)    0/96 (0%)   |3/92 (3%)    2/96 (2%)    2/98 (2%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |3.5%         2.3%         2.2%         1.1%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |3/70 (4%)    2/74 (3%)    2/79 (3%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.295N     P=0.475N     P=0.445N     P=0.287N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.295N     P=0.492N     P=0.477N     P=0.297N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.294N     P=0.489N     P=0.475N     P=0.295N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.295N     P=0.494N     P=0.481N     P=0.298N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.295N     P=0.475N     P=0.445N     P=0.287N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.287N     P=0.480N     P=0.470N     P=0.287N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 24
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Angiectasis                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/98 (0%)   |1/98 (1%)    0/97 (0%)    0/98 (0%)    2/99 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |1.1%         0.0%         0.0%         2.2%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |1/70 (1%)    0/74 (0%)    0/79 (0%)    2/74 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      ---          ---          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.164      P=0.489N     P=0.476N     P=0.519      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.164      P=0.502N     P=0.498N     P=0.500      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.164      P=0.502N     P=0.499N     P=0.500      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.164      P=0.502N     P=0.499N     P=0.501      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.164      (e)          (e)          P=0.519      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.166      P=0.503N     P=0.500N     P=0.504      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Basophilic Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   2/100 (2%)   0/100 (0%)   0/98 (0%)   |2/98 (2%)    3/97 (3%)    5/98 (5%)    2/99 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         2.3%         0.0%         0.0%        |2.2%         3.4%         5.5%         2.2%         |
|TERMINAL (d)       |     0/76 (0%)    2/72 (3%)    0/84 (0%)    0/62 (0%)   |2/70 (3%)    3/74 (4%)    5/79 (6%)    2/74 (3%)    |
|FIRST INCIDENCE    |     ---          734 (T)      ---          ---         |735 (T)      735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.404N     P=0.227      (e)          (e)         |P=0.435N     P=0.525      P=0.271      P=0.673N     |
|POLY 3             |     P=0.387N     P=0.229      (e)          (e)         |P=0.442N     P=0.495      P=0.224      P=0.692      |
|POLY 1.5           |     P=0.381N     P=0.233      (e)          (e)         |P=0.442N     P=0.495      P=0.223      P=0.692      |
|POLY 6             |     P=0.395N     P=0.225      (e)          (e)         |P=0.441N     P=0.496      P=0.223      P=0.692N     |
|LOGISTIC REGRESSION|     (e)          P=0.227      (e)          (e)         |P=0.435N     P=0.525      P=0.271      P=0.673N     |
|COCH-ARM / FISHERS |     P=0.371N     P=0.249      (e)          (e)         |P=0.435N     P=0.495      P=0.222      P=0.686N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 25
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Clear Cell Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     14/100 (14%) 17/100 (17%) 14/100 (14%) 11/98 (11%) |4/98 (4%)    3/97 (3%)    8/98 (8%)    6/99 (6%)    |
|POLY-3 ADJUSTED (b)|     15.0%        19.0%        15.1%        12.9%       |4.5%         3.4%         8.8%         6.7%         |
|TERMINAL (d)       |     13/76 (17%)  16/72 (22%)  14/84 (17%)  10/62 (16%) |3/70 (4%)    3/74 (4%)    6/79 (8%)    5/74 (7%)    |
|FIRST INCIDENCE    |     520          522          734 (T)      525         |608          735 (T)      472          597          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.372N     P=0.290      P=0.471N     P=0.535N    |P=0.319      P=0.475N     P=0.237      P=0.398      |
|POLY 3             |     P=0.251N     P=0.301      P=0.580      P=0.424N    |P=0.316      P=0.508N     P=0.193      P=0.373      |
|POLY 1.5           |     P=0.229N     P=0.320      P=0.579      P=0.395N    |P=0.316      P=0.508N     P=0.191      P=0.372      |
|POLY 6             |     P=0.278N     P=0.281      P=0.576N     P=0.458N    |P=0.318      P=0.509N     P=0.193      P=0.374      |
|LOGISTIC REGRESSION|     P=0.264N     P=0.297      P=0.567N     P=0.426N    |P=0.323      P=0.506N     P=0.184      P=0.376      |
|COCH-ARM / FISHERS |     P=0.200N     P=0.348      P=0.581N     P=0.355N    |P=0.324      P=0.506N     P=0.186      P=0.380      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Developmental Malformation                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   0/98 (0%)   |0/98 (0%)    1/97 (1%)    2/98 (2%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         1.1%         2.2%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    2/79 (3%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          64           735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.441N     P=0.500      P=0.266      (e)          |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.445N     P=0.500      P=0.240      (e)          |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.445N     P=0.500      P=0.240      (e)          |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.444N     P=0.501      P=0.240      (e)          |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.383N     (e)          P=0.266      (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.440N     P=0.497      P=0.249      (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 26
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Eosinophilic Focus                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     12/100 (12%) 13/100 (13%) 15/100 (15%) 15/98 (15%) |6/98 (6%)    4/97 (4%)    10/98 (10%)  11/99 (11%)  |
|POLY-3 ADJUSTED (b)|     12.9%        14.7%        16.0%        17.7%       |6.6%         4.5%         11.1%        12.3%        |
|TERMINAL (d)       |     10/76 (13%)  13/72 (18%)  13/84 (16%)  13/62 (21%) |5/70 (7%)    4/74 (5%)    10/79 (13%)  9/74 (12%)   |
|FIRST INCIDENCE    |     520          734 (T)      549          630         |397          735 (T)      735 (T)      687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.150      P=0.443      P=0.433      P=0.170     |P=0.071      P=0.342N     P=0.291      P=0.183      |
|POLY 3             |     P=0.260      P=0.447      P=0.347      P=0.249     |P=0.067      P=0.385N     P=0.216      P=0.150      |
|POLY 1.5           |     P=0.285      P=0.469      P=0.343      P=0.276     |P=0.067      P=0.384N     P=0.216      P=0.151      |
|POLY 6             |     P=0.232      P=0.423      P=0.357      P=0.219     |P=0.067      P=0.385N     P=0.213      P=0.150      |
|LOGISTIC REGRESSION|     P=0.240      P=0.438      P=0.341      P=0.234     |P=0.068      P=0.379N     P=0.219      P=0.156      |
|COCH-ARM / FISHERS |     P=0.324      P=0.500      P=0.340      P=0.319     |P=0.073      P=0.380N     P=0.217      P=0.160      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Hepatodiaphragmatic Nodule                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/100 (0%)   0/100 (0%)   2/98 (2%)   |0/98 (0%)    0/97 (0%)    1/98 (1%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         2.4%        |0.0%         0.0%         1.1%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    2/62 (3%)   |0/70 (0%)    0/74 (0%)    1/79 (1%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          734 (T)     |---          ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.026 *    (e)          (e)          P=0.195     |P=0.766N     (e)          P=0.524      (e)          |
|POLY 3             |     P=0.038 *    (e)          (e)          P=0.219     |P=0.766N     (e)          P=0.502      (e)          |
|POLY 1.5           |     P=0.039 *    (e)          (e)          P=0.225     |P=0.766N     (e)          P=0.501      (e)          |
|POLY 6             |     P=0.036 *    (e)          (e)          P=0.212     |P=0.765N     (e)          P=0.501      (e)          |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          P=0.195     |(e)          (e)          P=0.524      (e)          |
|COCH-ARM / FISHERS |     P=0.041 *    (e)          (e)          P=0.244     |P=0.764N     (e)          P=0.500      (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 27
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Infiltration Cellular Focal Mixed Cell                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/100 (6%)   10/100 (10%) 14/100 (14%) 10/98 (10%) |53/98 (54%)  58/97 (60%)  48/98 (49%)  48/99 (48%)  |
|POLY-3 ADJUSTED (b)|     6.5%         11.3%        15.1%        11.8%       |58.9%        64.3%        52.3%        52.7%        |
|TERMINAL (d)       |     6/76 (8%)    9/72 (13%)   14/84 (17%)  8/62 (13%)  |47/70 (67%)  53/74 (72%)  44/79 (56%)  41/74 (55%)  |
|FIRST INCIDENCE    |     734 (T)      703          734 (T)      594         |666          387          513          566          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.240      P=0.184      P=0.076      P=0.117     |P=0.124N     P=0.429      P=0.078N     P=0.171N     |
|POLY 3             |     P=0.356      P=0.192      P=0.049 *    P=0.168     |P=0.125N     P=0.272      P=0.226N     P=0.242N     |
|POLY 1.5           |     P=0.379      P=0.202      P=0.049 *    P=0.183     |P=0.135N     P=0.263      P=0.245N     P=0.260N     |
|POLY 6             |     P=0.330      P=0.182      P=0.051      P=0.153     |P=0.108N     P=0.276      P=0.219N     P=0.219N     |
|LOGISTIC REGRESSION|     P=0.307      P=0.175      P=0.076      P=0.149     |P=0.142N     P=0.238      P=0.265N     P=0.276N     |
|COCH-ARM / FISHERS |     P=0.413      P=0.218      P=0.049 *    P=0.205     |P=0.129N     P=0.254      P=0.284N     P=0.260N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Mixed Cell Focus                                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/100 (4%)   1/100 (1%)   3/100 (3%)   4/98 (4%)   |0/98 (0%)    1/97 (1%)    2/98 (2%)    1/99 (1%)    |
|POLY-3 ADJUSTED (b)|     4.3%         1.1%         3.2%         4.7%        |0.0%         1.1%         2.2%         1.1%         |
|TERMINAL (d)       |     4/76 (5%)    1/72 (1%)    3/84 (4%)    3/62 (5%)   |0/70 (0%)    1/74 (1%)    2/79 (3%)    1/74 (1%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      545         |---          735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.235      P=0.199N     P=0.446N     P=0.536     |P=0.601      P=0.511      P=0.266      P=0.511      |
|POLY 3             |     P=0.304      P=0.195N     P=0.497N     P=0.595     |P=0.596      P=0.498      P=0.240      P=0.500      |
|POLY 1.5           |     P=0.312      P=0.190N     P=0.498N     P=0.609     |P=0.596      P=0.498      P=0.240      P=0.500      |
|POLY 6             |     P=0.294      P=0.201N     P=0.492N     P=0.579     |P=0.597      P=0.498      P=0.240      P=0.500      |
|LOGISTIC REGRESSION|     P=0.294      P=0.199N     P=0.446N     P=0.608     |(e)          P=0.511      P=0.266      P=0.511      |
|COCH-ARM / FISHERS |     P=0.324      P=0.184N     P=0.500N     P=0.628     |P=0.601      P=0.497      P=0.249      P=0.503      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 28
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver                                                                                                                            |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     7/100 (7%)   6/100 (6%)   4/100 (4%)   4/98 (4%)   |4/98 (4%)    2/97 (2%)    4/98 (4%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     7.4%         6.7%         4.3%         4.7%        |4.4%         2.2%         4.4%         0.0%         |
|TERMINAL (d)       |     1/76 (1%)    3/72 (4%)    2/84 (2%)    2/62 (3%)   |0/70 (0%)    0/74 (0%)    2/79 (3%)    0/74 (0%)    |
|FIRST INCIDENCE    |     520          461          585          703         |432          545          638          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.359N     P=0.541N     P=0.260N     P=0.356N    |P=0.084N     P=0.346N     P=0.626N     P=0.069N     |
|POLY 3             |     P=0.331N     P=0.537N     P=0.272N     P=0.333N    |P=0.083N     P=0.348N     P=0.638      P=0.066N     |
|POLY 1.5           |     P=0.313N     P=0.521N     P=0.271N     P=0.311N    |P=0.082N     P=0.347N     P=0.639      P=0.065N     |
|POLY 6             |     P=0.352N     P=0.557N     P=0.273N     P=0.362N    |P=0.084N     P=0.349N     P=0.635      P=0.067N     |
|LOGISTIC REGRESSION|     P=0.218N     P=0.384N     P=0.262N     P=0.208N    |P=0.067N     P=0.307N     P=0.638N     P=0.043N*    |
|COCH-ARM / FISHERS |     P=0.288N     P=0.500N     P=0.269N     P=0.280N    |P=0.078N     P=0.346N     P=0.640N     P=0.059N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Liver: Hepatocyte                                                                                                                |
|     Vacuolization Cytoplasmic                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     13/100 (13%) 9/100 (9%)   6/100 (6%)   6/98 (6%)   |14/98 (14%)  15/97 (15%)  14/98 (14%)  17/99 (17%)  |
|POLY-3 ADJUSTED (b)|     13.7%        9.9%         6.5%         6.9%        |14.9%        16.4%        15.3%        18.2%        |
|TERMINAL (d)       |     8/76 (11%)   5/72 (7%)    6/84 (7%)    2/62 (3%)   |6/70 (9%)    6/74 (8%)    10/79 (13%)  11/74 (15%)  |
|FIRST INCIDENCE    |     386          400          734 (T)      500         |288          491          578          291          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.211N     P=0.291N     P=0.056N     P=0.137N    |P=0.331      P=0.526      P=0.500N     P=0.384      |
|POLY 3             |     P=0.161N     P=0.283N     P=0.080N     P=0.105N    |P=0.327      P=0.474      P=0.556      P=0.342      |
|POLY 1.5           |     P=0.152N     P=0.270N     P=0.078N     P=0.095N    |P=0.327      P=0.474      P=0.563      P=0.343      |
|POLY 6             |     P=0.173N     P=0.298N     P=0.080N     P=0.118N    |P=0.324      P=0.479      P=0.548      P=0.341      |
|LOGISTIC REGRESSION|     P=0.074N     P=0.141N     P=0.073N     P=0.019N*   |P=0.385      P=0.499      P=0.564      P=0.418      |
|COCH-ARM / FISHERS |     P=0.139N     P=0.249N     P=0.073N     P=0.080N    |P=0.336      P=0.488      P=0.581N     P=0.360      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 29
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     20/100 (20%) 16/99 (16%)  22/100 (22%) 24/99 (24%) |32/95 (34%)  37/100 (37%) 33/99 (33%)  34/99 (34%)  |
|POLY-3 ADJUSTED (b)|     21.5%        18.1%        23.5%        27.3%       |36.5%        39.8%        36.0%        37.4%        |
|TERMINAL (d)       |     19/76 (25%)  15/72 (21%)  21/84 (25%)  17/62 (27%) |30/70 (43%)  29/74 (39%)  31/79 (39%)  26/74 (35%)  |
|FIRST INCIDENCE    |     497          719          590          480         |667          387          645          566          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.031 *    P=0.349N     P=0.569      P=0.116     |P=0.491N     P=0.364      P=0.398N     P=0.538      |
|POLY 3             |     P=0.118      P=0.353N     P=0.436      P=0.230     |P=0.509N     P=0.379      P=0.536N     P=0.512      |
|POLY 1.5           |     P=0.129      P=0.332N     P=0.432      P=0.253     |P=0.516N     P=0.372      P=0.538N     P=0.502      |
|POLY 6             |     P=0.107      P=0.375N     P=0.449      P=0.208     |P=0.490N     P=0.383      P=0.545N     P=0.529      |
|LOGISTIC REGRESSION|     P=0.093      P=0.368N     P=0.445      P=0.238     |P=0.514N     P=0.338      P=0.560      P=0.486      |
|COCH-ARM / FISHERS |     P=0.148      P=0.302N     P=0.431      P=0.291     |P=0.489N     P=0.369      P=0.540N     P=0.522      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung                                                                                                                             |
|     Inflammation Focal                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   3/99 (3%)    1/100 (1%)   3/99 (3%)   |2/95 (2%)    1/100 (1%)   1/99 (1%)    1/99 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         3.4%         1.1%         3.5%        |2.3%         1.1%         1.1%         1.1%         |
|TERMINAL (d)       |     0/76 (0%)    1/72 (1%)    1/84 (1%)    3/62 (5%)   |1/70 (1%)    1/74 (1%)    1/79 (1%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          461          734 (T)      734 (T)     |733          735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.198      P=0.118      P=0.520      P=0.089     |P=0.537N     P=0.481N     P=0.460N     P=0.479N     |
|POLY 3             |     P=0.232      P=0.115      P=0.501      P=0.108     |P=0.541N     P=0.488N     P=0.486N     P=0.492N     |
|POLY 1.5           |     P=0.241      P=0.117      P=0.501      P=0.113     |P=0.541N     P=0.487N     P=0.486N     P=0.492N     |
|POLY 6             |     P=0.221      P=0.114      P=0.503      P=0.103     |P=0.539N     P=0.490N     P=0.487N     P=0.492N     |
|LOGISTIC REGRESSION|     P=0.288      P=0.153      P=0.520      P=0.089     |P=0.537N     P=0.489N     P=0.483N     P=0.487N     |
|COCH-ARM / FISHERS |     P=0.255      P=0.121      P=0.500      P=0.121     |P=0.538N     P=0.481N     P=0.484N     P=0.484N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 30
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung: Alveolar Epithelium                                                                                                        |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/100 (2%)   2/99 (2%)    0/100 (0%)   3/99 (3%)   |4/95 (4%)    1/100 (1%)   2/99 (2%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     2.2%         2.3%         0.0%         3.5%        |4.5%         1.1%         2.2%         0.0%         |
|TERMINAL (d)       |     2/76 (3%)    2/72 (3%)    0/84 (0%)    2/62 (3%)   |3/70 (4%)    1/74 (1%)    2/79 (3%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      ---          510         |432          735 (T)      735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.247      P=0.674      P=0.217N     P=0.422     |P=0.111N     P=0.170N     P=0.294N     P=0.061N     |
|POLY 3             |     P=0.302      P=0.676      P=0.237N     P=0.468     |P=0.112N     P=0.175N     P=0.325N     P=0.062N     |
|POLY 1.5           |     P=0.309      P=0.681      P=0.238N     P=0.479     |P=0.113N     P=0.173N     P=0.324N     P=0.061N     |
|POLY 6             |     P=0.294      P=0.670      P=0.235N     P=0.455     |P=0.110N     P=0.177N     P=0.328N     P=0.062N     |
|LOGISTIC REGRESSION|     P=0.320      P=0.674      (e)          P=0.516     |P=0.110N     P=0.156N     P=0.315N     P=0.049N*    |
|COCH-ARM / FISHERS |     P=0.319      P=0.686      P=0.249N     P=0.495     |P=0.112N     P=0.169N     P=0.322N     P=0.056N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung: Alveolus                                                                                                                   |
|     Infiltration Cellular Histiocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/100 (3%)   5/99 (5%)    4/100 (4%)   3/99 (3%)   |1/95 (1%)    4/100 (4%)   1/99 (1%)    2/99 (2%)    |
|POLY-3 ADJUSTED (b)|     3.2%         5.6%         4.3%         3.5%        |1.1%         4.4%         1.1%         2.2%         |
|TERMINAL (d)       |     2/76 (3%)    4/72 (6%)    4/84 (5%)    1/62 (2%)   |0/70 (0%)    3/74 (4%)    1/79 (1%)    1/74 (1%)    |
|FIRST INCIDENCE    |     715          612          734 (T)      568         |723          559          735 (T)      687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.535N     P=0.329      P=0.549      P=0.580     |P=0.565N     P=0.195      P=0.744N     P=0.508      |
|POLY 3             |     P=0.463N     P=0.336      P=0.503      P=0.627     |P=0.571N     P=0.194      P=0.751N     P=0.509      |
|POLY 1.5           |     P=0.449N     P=0.343      P=0.501      P=0.639     |P=0.570N     P=0.195      P=0.751N     P=0.509      |
|POLY 6             |     P=0.479N     P=0.329      P=0.507      P=0.613     |P=0.569N     P=0.193      P=0.753N     P=0.509      |
|LOGISTIC REGRESSION|     P=0.449N     P=0.337      P=0.518      P=0.657     |P=0.565N     P=0.200      P=0.754N     P=0.510      |
|COCH-ARM / FISHERS |     P=0.428N     P=0.355      P=0.500      P=0.654     |P=0.564N     P=0.201      P=0.741N     P=0.516      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 31
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lung: Artery                                                                                                                     |
|     Mineralization                                                                                                              |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/100 (0%)   0/99 (0%)    0/100 (0%)   0/99 (0%)   |2/95 (2%)    0/100 (0%)   0/99 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |2.3%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |625          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.366N     P=0.238N     P=0.236N     P=0.240N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.359N     P=0.232N     P=0.230N     P=0.235N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.361N     P=0.231N     P=0.230N     P=0.234N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.357N     P=0.234N     P=0.232N     P=0.235N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.354N     P=0.215N     P=0.222N     P=0.215N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.362N     P=0.236N     P=0.239N     P=0.239N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node                                                                                                                       |
|     Ectasia                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/6 (0%)     0/6 (0%)     0/5 (0%)     0/3 (0%)    |2/19 (11%)   2/15 (13%)   2/4 (50%)    1/14 (7%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |11.2%        14.0%        50.0%        7.7%         |
|TERMINAL (d)       |     0/6 (0%)     0/3 (0%)     0/3 (0%)     0/0 (0%)    |2/11 (18%)   1/11 (9%)    2/4 (50%)    1/10 (10%)   |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      673          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.389N     P=0.696      P=0.290      P=0.535N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.438N     P=0.612      P=0.122      P=0.612N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.435N     P=0.610      P=0.117      P=0.611N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.438N     P=0.620      P=0.129      P=0.611N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.435N     P=0.610      P=0.290      P=0.535N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.429N     P=0.603      P=0.125      P=0.616N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 32
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/92 (4%)    2/92 (2%)    3/92 (3%)    4/89 (4%)   |3/84 (4%)    7/94 (7%)    4/89 (4%)    4/91 (4%)    |
|POLY-3 ADJUSTED (b)|     4.6%         2.4%         3.5%         5.1%        |3.8%         8.0%         4.8%         4.8%         |
|TERMINAL (d)       |     1/72 (1%)    1/66 (2%)    1/79 (1%)    1/57 (2%)   |0/66 (0%)    2/71 (3%)    1/74 (1%)    3/72 (4%)    |
|FIRST INCIDENCE    |     582          722          636          604         |707          461          655          597          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.338      P=0.369N     P=0.474N     P=0.560     |P=0.447N     P=0.185      P=0.516      P=0.527      |
|POLY 3             |     P=0.378      P=0.367N     P=0.504N     P=0.584     |P=0.446N     P=0.210      P=0.535      P=0.537      |
|POLY 1.5           |     P=0.387      P=0.356N     P=0.503N     P=0.600     |P=0.445N     P=0.210      P=0.532      P=0.537      |
|POLY 6             |     P=0.366      P=0.381N     P=0.503N     P=0.565     |P=0.447N     P=0.209      P=0.536      P=0.536      |
|LOGISTIC REGRESSION|     P=0.430      P=0.314N     P=0.492N     P=0.590N    |P=0.429N     P=0.237      P=0.534      P=0.542      |
|COCH-ARM / FISHERS |     P=0.399      P=0.341N     P=0.500N     P=0.621     |P=0.438N     P=0.215      P=0.532      P=0.544      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/92 (0%)    0/92 (0%)    0/92 (0%)    1/89 (1%)   |2/84 (2%)    2/94 (2%)    1/89 (1%)    2/91 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         1.3%        |2.6%         2.3%         1.2%         2.4%         |
|TERMINAL (d)       |     0/72 (0%)    0/66 (0%)    0/79 (0%)    0/57 (0%)   |2/66 (3%)    1/71 (1%)    0/74 (0%)    2/72 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          671         |735 (T)      547          692          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.219      (e)          (e)          P=0.476     |P=0.619      P=0.675N     P=0.476N     P=0.662N     |
|POLY 3             |     P=0.221      (e)          (e)          P=0.480     |P=0.615      P=0.659N     P=0.479N     P=0.670N     |
|POLY 1.5           |     P=0.224      (e)          (e)          P=0.486     |P=0.615      P=0.657N     P=0.480N     P=0.669N     |
|POLY 6             |     P=0.217      (e)          (e)          P=0.473     |P=0.615      P=0.660N     P=0.480N     P=0.670N     |
|LOGISTIC REGRESSION|     P=0.242      (e)          (e)          P=0.518     |P=0.619      P=0.643N     P=0.480N     P=0.662N     |
|COCH-ARM / FISHERS |     P=0.227      (e)          (e)          P=0.492     |P=0.618      P=0.646N     P=0.478N     P=0.659N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 33
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/92 (1%)    4/92 (4%)    1/92 (1%)    1/89 (1%)   |8/84 (10%)   10/94 (11%)  12/89 (13%)  4/91 (4%)    |
|POLY-3 ADJUSTED (b)|     1.2%         4.9%         1.2%         1.3%        |10.2%        11.6%        14.4%        4.8%         |
|TERMINAL (d)       |     1/72 (1%)    2/66 (3%)    1/79 (1%)    1/57 (2%)   |8/66 (12%)   9/71 (13%)   12/74 (16%)  4/72 (6%)    |
|FIRST INCIDENCE    |     734 (T)      589          734 (T)      734 (T)     |735 (T)      387          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.390N     P=0.167      P=0.740N     P=0.708     |P=0.056N     P=0.463      P=0.327      P=0.144N     |
|POLY 3             |     P=0.360N     P=0.169      P=0.760      P=0.737     |P=0.064N     P=0.488      P=0.282      P=0.154N     |
|POLY 1.5           |     P=0.350N     P=0.174      P=0.760      P=0.744     |P=0.064N     P=0.492      P=0.281      P=0.154N     |
|POLY 6             |     P=0.373N     P=0.164      P=0.760N     P=0.729     |P=0.063N     P=0.483      P=0.279      P=0.155N     |
|LOGISTIC REGRESSION|     P=0.343N     P=0.184      P=0.740N     P=0.708     |P=0.063N     P=0.490      P=0.327      P=0.144N     |
|COCH-ARM / FISHERS |     P=0.335N     P=0.184      P=0.751N     P=0.743     |P=0.062N     P=0.503      P=0.283      P=0.149N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Hyperplasia Reticulum Cell                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/92 (0%)    0/92 (0%)    0/92 (0%)    0/89 (0%)   |0/84 (0%)    2/94 (2%)    1/89 (1%)    2/91 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         2.3%         1.2%         2.4%         |
|TERMINAL (d)       |     0/72 (0%)    0/66 (0%)    0/79 (0%)    0/57 (0%)   |0/66 (0%)    2/71 (3%)    1/74 (1%)    2/72 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.385      P=0.255      P=0.523      P=0.258      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.375      P=0.258      P=0.512      P=0.253      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.376      P=0.260      P=0.511      P=0.253      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.375      P=0.256      P=0.511      P=0.252      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |(e)          P=0.255      P=0.523      P=0.258      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.380      P=0.277      P=0.514      P=0.269      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 34
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Infiltration Cellular Mast Cell                                                                                             |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/92 (1%)    0/92 (0%)    1/92 (1%)    7/89 (8%)   |0/84 (0%)    0/94 (0%)    0/89 (0%)    0/91 (0%)    |
|POLY-3 ADJUSTED (b)|     1.2%         0.0%         1.2%         8.6%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/72 (1%)    0/66 (0%)    0/79 (0%)    2/57 (4%)   |0/66 (0%)    0/71 (0%)    0/74 (0%)    0/72 (0%)    |
|FIRST INCIDENCE    |     734 (T)      ---          449          448         |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P<0.001 **   P=0.517N     P=0.750N     P=0.027 *   |(e)          (e)          (e)          (e)          |
|POLY 3             |     P<0.001 **   P=0.510N     P=0.759N     P=0.028 *   |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P<0.001 **   P=0.506N     P=0.760N     P=0.029 *   |(e)          (e)          (e)          (e)          |
|POLY 6             |     P<0.001 **   P=0.515N     P=0.757N     P=0.026 *   |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P<0.001 **   (e)          P=0.762N     P=0.078     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P<0.001 **   P=0.500N     P=0.751N     P=0.029 *   |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Infiltration Cellular Mixed Cell                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/92 (4%)    2/92 (2%)    0/92 (0%)    3/89 (3%)   |2/84 (2%)    1/94 (1%)    2/89 (2%)    1/91 (1%)    |
|POLY-3 ADJUSTED (b)|     4.7%         2.4%         0.0%         3.9%        |2.6%         1.2%         2.4%         1.2%         |
|TERMINAL (d)       |     2/72 (3%)    0/66 (0%)    0/79 (0%)    1/57 (2%)   |2/66 (3%)    1/71 (1%)    2/74 (3%)    0/72 (0%)    |
|FIRST INCIDENCE    |     705          665          ---          705         |735 (T)      735 (T)      735 (T)      690          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.450      P=0.374N     P=0.057N     P=0.607N    |P=0.486N     P=0.475N     P=0.652N     P=0.483N     |
|POLY 3             |     P=0.499      P=0.361N     P=0.064N     P=0.555N    |P=0.490N     P=0.469N     P=0.672N     P=0.477N     |
|POLY 1.5           |     P=0.506      P=0.352N     P=0.064N     P=0.539N    |P=0.491N     P=0.467N     P=0.672N     P=0.476N     |
|POLY 6             |     P=0.489      P=0.371N     P=0.063N     P=0.574N    |P=0.487N     P=0.472N     P=0.673N     P=0.477N     |
|LOGISTIC REGRESSION|     P=0.495      P=0.353N     P=0.064N     P=0.575N    |P=0.491N     P=0.475N     P=0.652N     P=0.476N     |
|COCH-ARM / FISHERS |     P=0.516      P=0.341N     P=0.060N     P=0.518N    |P=0.490N     P=0.458N     P=0.668N     P=0.470N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 35
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Infiltration Cellular Plasma Cell                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/92 (0%)    2/92 (2%)    3/92 (3%)    2/89 (2%)   |2/84 (2%)    1/94 (1%)    2/89 (2%)    1/91 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         2.4%         3.5%         2.6%        |2.6%         1.2%         2.4%         1.2%         |
|TERMINAL (d)       |     0/72 (0%)    2/66 (3%)    2/79 (3%)    0/57 (0%)   |2/66 (3%)    1/71 (1%)    1/74 (1%)    1/72 (1%)    |
|FIRST INCIDENCE    |     ---          734 (T)      590          577         |735 (T)      735 (T)      578          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.397      P=0.220      P=0.134      P=0.218     |P=0.488N     P=0.475N     P=0.660N     P=0.470N     |
|POLY 3             |     P=0.424      P=0.227      P=0.122      P=0.218     |P=0.491N     P=0.469N     P=0.670N     P=0.478N     |
|POLY 1.5           |     P=0.434      P=0.232      P=0.122      P=0.224     |P=0.491N     P=0.467N     P=0.671N     P=0.477N     |
|POLY 6             |     P=0.412      P=0.223      P=0.123      P=0.212     |P=0.490N     P=0.472N     P=0.670N     P=0.478N     |
|LOGISTIC REGRESSION|     P=0.478      P=0.220      P=0.124      P=0.292     |P=0.491N     P=0.475N     P=0.670N     P=0.470N     |
|COCH-ARM / FISHERS |     P=0.448      P=0.249      P=0.123      P=0.240     |P=0.490N     P=0.458N     P=0.668N     P=0.470N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mandibular                                                                                                           |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/92 (2%)    4/92 (4%)    3/92 (3%)    2/89 (2%)   |22/84 (26%)  9/94 (10%)   18/89 (20%)  10/91 (11%)  |
|POLY-3 ADJUSTED (b)|     2.3%         4.9%         3.5%         2.6%        |27.9%        10.3%        21.5%        11.9%        |
|TERMINAL (d)       |     1/72 (1%)    3/66 (5%)    3/79 (4%)    2/57 (4%)   |18/66 (27%)  5/71 (7%)    16/74 (22%)  8/72 (11%)   |
|FIRST INCIDENCE    |     603          719          734 (T)      734 (T)     |667          461          645          687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.516N     P=0.309      P=0.531      P=0.619     |P=0.087N     P=0.007N**   P=0.189N     P=0.010N*    |
|POLY 3             |     P=0.463N     P=0.315      P=0.497      P=0.653     |P=0.092N     P=0.003N**   P=0.222N     P=0.008N**   |
|POLY 1.5           |     P=0.449N     P=0.325      P=0.498      P=0.665     |P=0.090N     P=0.003N**   P=0.225N     P=0.008N**   |
|POLY 6             |     P=0.481N     P=0.303      P=0.497      P=0.639     |P=0.092N     P=0.003N**   P=0.225N     P=0.008N**   |
|LOGISTIC REGRESSION|     P=0.460N     P=0.332      P=0.501      P=0.687     |P=0.089N     P=0.003N**   P=0.226N     P=0.009N**   |
|COCH-ARM / FISHERS |     P=0.430N     P=0.341      P=0.500      P=0.677     |P=0.087N     P=0.003N**   P=0.227N     P=0.008N**   |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 36
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/87 (7%)    12/90 (13%)  14/96 (15%)  7/85 (8%)   |12/83 (14%)  10/88 (11%)  24/89 (27%)  21/92 (23%)  |
|POLY-3 ADJUSTED (b)|     7.3%         14.4%        15.3%        9.1%        |15.0%        12.1%        28.8%        24.4%        |
|TERMINAL (d)       |     3/70 (4%)    6/70 (9%)    12/83 (15%)  4/61 (7%)   |9/68 (13%)   7/71 (10%)   22/75 (29%)  17/72 (24%)  |
|FIRST INCIDENCE    |     497          560          549          568         |667          491          659          474          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.406N     P=0.106      P=0.091      P=0.407     |P=0.051      P=0.382N     P=0.039 *    P=0.088      |
|POLY 3             |     P=0.360N     P=0.109      P=0.075      P=0.445     |P=0.061      P=0.373N     P=0.026 *    P=0.094      |
|POLY 1.5           |     P=0.342N     P=0.114      P=0.075      P=0.459     |P=0.064      P=0.369N     P=0.028 *    P=0.099      |
|POLY 6             |     P=0.379N     P=0.106      P=0.077      P=0.430     |P=0.057      P=0.375N     P=0.023 *    P=0.089      |
|LOGISTIC REGRESSION|     P=0.299N     P=0.135      P=0.075      P=0.523     |P=0.067      P=0.353N     P=0.027 *    P=0.100      |
|COCH-ARM / FISHERS |     P=0.315N     P=0.121      P=0.076      P=0.482     |P=0.072      P=0.353N     P=0.033 *    P=0.111      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Ectasia                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/87 (0%)    0/90 (0%)    0/96 (0%)    0/85 (0%)   |3/83 (4%)    0/88 (0%)    4/89 (4%)    2/92 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |3.8%         0.0%         4.8%         2.3%         |
|TERMINAL (d)       |     0/70 (0%)    0/70 (0%)    0/83 (0%)    0/61 (0%)   |3/68 (4%)    0/71 (0%)    4/75 (5%)    2/72 (3%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      ---          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.611      P=0.115N     P=0.553      P=0.474N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.625      P=0.115N     P=0.524      P=0.468N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.626N     P=0.114N     P=0.528      P=0.464N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.622      P=0.116N     P=0.518      P=0.472N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.611      (e)          P=0.553      P=0.474N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.623N     P=0.112N     P=0.539      P=0.451N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 37
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/87 (3%)    2/90 (2%)    3/96 (3%)    3/85 (4%)   |3/83 (4%)    2/88 (2%)    4/89 (4%)    4/92 (4%)    |
|POLY-3 ADJUSTED (b)|     3.7%         2.4%         3.3%         3.9%        |3.8%         2.4%         4.8%         4.7%         |
|TERMINAL (d)       |     2/70 (3%)    1/70 (1%)    3/83 (4%)    3/61 (5%)   |3/68 (4%)    2/71 (3%)    3/75 (4%)    3/72 (4%)    |
|FIRST INCIDENCE    |     684          719          734 (T)      734 (T)     |735 (T)      735 (T)      692          721          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.443      P=0.510N     P=0.593N     P=0.596     |P=0.379      P=0.480N     P=0.543      P=0.529      |
|POLY 3             |     P=0.481      P=0.496N     P=0.614N     P=0.628     |P=0.399      P=0.486N     P=0.525      P=0.539      |
|POLY 1.5           |     P=0.489      P=0.492N     P=0.614N     P=0.636     |P=0.403      P=0.483N     P=0.528      P=0.543      |
|POLY 6             |     P=0.473      P=0.502N     P=0.611N     P=0.619     |P=0.396      P=0.488N     P=0.520      P=0.535      |
|LOGISTIC REGRESSION|     P=0.472      P=0.494N     P=0.612N     P=0.623     |P=0.395      P=0.480N     P=0.520      P=0.532      |
|COCH-ARM / FISHERS |     P=0.501      P=0.484N     P=0.611N     P=0.648     |P=0.408      P=0.472N     P=0.539      P=0.557      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/87 (0%)    7/90 (8%)    5/96 (5%)    1/85 (1%)   |2/83 (2%)    1/88 (1%)    4/89 (4%)    0/92 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         8.5%         5.5%         1.3%        |2.5%         1.2%         4.8%         0.0%         |
|TERMINAL (d)       |     0/70 (0%)    7/70 (10%)   5/83 (6%)    1/61 (2%)   |2/68 (3%)    1/71 (1%)    3/75 (4%)    0/72 (0%)    |
|FIRST INCIDENCE    |     ---          734 (T)      734 (T)      734 (T)     |735 (T)      735 (T)      21           ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.202N     P=0.010 *    P=0.052      P=0.473     |P=0.196N     P=0.485N     P=0.377      P=0.226N     |
|POLY 3             |     P=0.184N     P=0.010 *    P=0.043 *    P=0.486     |P=0.188N     P=0.489N     P=0.365      P=0.222N     |
|POLY 1.5           |     P=0.177N     P=0.010 *    P=0.043 *    P=0.490     |P=0.186N     P=0.487N     P=0.369      P=0.221N     |
|POLY 6             |     P=0.192N     P=0.009 **   P=0.044 *    P=0.483     |P=0.190N     P=0.491N     P=0.360      P=0.224N     |
|LOGISTIC REGRESSION|     (e)          P=0.010 *    P=0.052      P=0.473     |P=0.168N     P=0.485N     P=0.469      (e)          |
|COCH-ARM / FISHERS |     P=0.168N     P=0.008 **   P=0.038 *    P=0.494     |P=0.184N     P=0.478N     P=0.375      P=0.224N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 38
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Hyperplasia Reticulum Cell                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/87 (0%)    0/90 (0%)    0/96 (0%)    0/85 (0%)   |3/83 (4%)    7/88 (8%)    13/89 (15%)  8/92 (9%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |3.8%         8.6%         15.6%        9.4%         |
|TERMINAL (d)       |     0/70 (0%)    0/70 (0%)    0/83 (0%)    0/61 (0%)   |3/68 (4%)    7/71 (10%)   12/75 (16%)  8/72 (11%)   |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      735 (T)      645          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.361      P=0.181      P=0.015 *    P=0.124      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.383      P=0.177      P=0.011 *    P=0.130      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.390      P=0.179      P=0.011 *    P=0.133      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.376      P=0.174      P=0.010 *    P=0.126      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.383      P=0.181      P=0.011 *    P=0.124      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.406      P=0.190      P=0.012 *    P=0.142      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Infiltration Cellular Histiocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     59/87 (68%)  67/90 (74%)  79/96 (82%)  56/85 (66%) |50/83 (60%)  45/88 (51%)  47/89 (53%)  43/92 (47%)  |
|POLY-3 ADJUSTED (b)|     70.4%        78.1%        84.9%        70.3%       |61.7%        53.9%        55.3%        49.4%        |
|TERMINAL (d)       |     50/70 (71%)  57/70 (81%)  72/83 (87%)  42/61 (69%) |44/68 (65%)  39/71 (55%)  42/75 (56%)  37/72 (51%)  |
|FIRST INCIDENCE    |     520          400          527          458         |397          496          472          531          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.532      P=0.131      P=0.092      P=0.298     |P=0.198N     P=0.195N     P=0.177N     P=0.110N     |
|POLY 3             |     P=0.185N     P=0.159      P=0.014 *    P=0.559N    |P=0.121N     P=0.191N     P=0.247N     P=0.071N     |
|POLY 1.5           |     P=0.163N     P=0.180      P=0.014 *    P=0.520N    |P=0.116N     P=0.183N     P=0.236N     P=0.065N     |
|POLY 6             |     P=0.203N     P=0.138      P=0.015 *    P=0.553     |P=0.126N     P=0.197N     P=0.264N     P=0.076N     |
|LOGISTIC REGRESSION|     P=0.222N     P=0.147      P=0.015 *    P=0.536     |P=0.118N     P=0.181N     P=0.235N     P=0.066N     |
|COCH-ARM / FISHERS |     P=0.134N     P=0.210      P=0.018 *    P=0.457N    |P=0.104N     P=0.148N     P=0.204N     P=0.051N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 39
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Infiltration Cellular Mixed Cell                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/87 (3%)    5/90 (6%)    2/96 (2%)    3/85 (4%)   |4/83 (5%)    1/88 (1%)    2/89 (2%)    5/92 (5%)    |
|POLY-3 ADJUSTED (b)|     3.7%         6.0%         2.2%         3.9%        |5.0%         1.2%         2.4%         5.9%         |
|TERMINAL (d)       |     3/70 (4%)    4/70 (6%)    2/83 (2%)    3/61 (5%)   |4/68 (6%)    1/71 (1%)    2/75 (3%)    5/72 (7%)    |
|FIRST INCIDENCE    |     734 (T)      629          734 (T)      734 (T)     |735 (T)      735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.568N     P=0.354      P=0.423N     P=0.597     |P=0.168      P=0.169N     P=0.295N     P=0.535      |
|POLY 3             |     P=0.527N     P=0.366      P=0.454N     P=0.629     |P=0.185      P=0.172N     P=0.319N     P=0.544      |
|POLY 1.5           |     P=0.519N     P=0.371      P=0.455N     P=0.637     |P=0.187      P=0.171N     P=0.316N     P=0.549      |
|POLY 6             |     P=0.536N     P=0.363      P=0.450N     P=0.621     |P=0.183      P=0.174N     P=0.324N     P=0.539      |
|LOGISTIC REGRESSION|     P=0.533N     P=0.366      P=0.423N     P=0.597     |P=0.168      P=0.169N     P=0.295N     P=0.535      |
|COCH-ARM / FISHERS |     P=0.505N     P=0.379      P=0.453N     P=0.648     |P=0.189      P=0.166N     P=0.308N     P=0.565      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node, Mesenteric                                                                                                           |
|     Infiltration Cellular Plasma Cell                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/87 (0%)    0/90 (0%)    0/96 (0%)    0/85 (0%)   |5/83 (6%)    4/88 (5%)    2/89 (2%)    1/92 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |6.3%         4.9%         2.4%         1.2%         |
|TERMINAL (d)       |     0/70 (0%)    0/70 (0%)    0/83 (0%)    0/61 (0%)   |5/68 (7%)    4/71 (6%)    2/75 (3%)    1/72 (1%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.093N     P=0.473N     P=0.183N     P=0.094N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.088N     P=0.481N     P=0.202N     P=0.089N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.087N     P=0.477N     P=0.200N     P=0.088N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.089N     P=0.484N     P=0.207N     P=0.091N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.093N     P=0.473N     P=0.183N     P=0.094N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.086N     P=0.463N     P=0.194N     P=0.083N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 40
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node: Lumbar                                                                                                               |
|     Ectasia                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/6 (0%)     0/6 (0%)     0/5 (0%)     0/3 (0%)    |3/19 (16%)   1/15 (7%)    1/4 (25%)    2/14 (14%)   |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |16.8%        7.1%         25.0%        15.2%        |
|TERMINAL (d)       |     0/6 (0%)     0/3 (0%)     0/3 (0%)     0/0 (0%)    |3/11 (27%)   1/11 (9%)    1/4 (25%)    1/10 (10%)   |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      735 (T)      735 (T)      684          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.610      P=0.295N     P=0.710N     P=0.540N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.573      P=0.393N     P=0.627      P=0.643N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.570      P=0.393N     P=0.618      P=0.644N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.582      P=0.391N     P=0.640      P=0.635N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.566      P=0.295N     P=0.710N     P=0.652N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.572      P=0.397N     P=0.562      P=0.649N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Lymph Node: Lumbar                                                                                                               |
|     Hemorrhage                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/6 (17%)    0/6 (0%)     0/5 (0%)     0/3 (0%)    |4/19 (21%)   0/15 (0%)    1/4 (25%)    1/14 (7%)    |
|POLY-3 ADJUSTED (b)|     16.7%        0.0%         0.0%         0.0%        |22.3%        0.0%         25.0%        7.7%         |
|TERMINAL (d)       |     1/6 (17%)    0/3 (0%)     0/3 (0%)     0/0 (0%)    |4/11 (36%)   0/11 (0%)    1/4 (25%)    1/10 (10%)   |
|FIRST INCIDENCE    |     734 (T)      ---          ---          ---         |735 (T)      ---          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=1.000N     P=0.638N     P=0.638N     P=1.000N    |P=0.419N     P=0.053N     P=0.579N     P=0.189N     |
|POLY 3             |     P=0.644N     P=0.525N     P=0.564N     P=0.731N    |P=0.460N     P=0.082N     P=0.703      P=0.278N     |
|POLY 1.5           |     P=0.691N     P=0.514N     P=0.552N     P=0.695N    |P=0.459N     P=0.082N     P=0.693      P=0.278N     |
|POLY 6             |     P=0.557N     P=0.540N     P=0.580N     P=0.763N    |P=0.460N     P=0.080N     P=0.718      P=0.274N     |
|LOGISTIC REGRESSION|     P=1.000N     (e)          (e)          (e)         |P=0.419N     (e)          P=0.579N     P=0.189N     |
|COCH-ARM / FISHERS |     P=0.723N     P=0.500N     P=0.545N     P=0.667N    |P=0.456N     P=0.084N     P=0.654      P=0.278N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 41
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland                                                                                                                    |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/2 (0%)     0/1 (0%)     1/3 (33%)    0/4 (0%)    |3/94 (3%)    3/98 (3%)    5/99 (5%)    2/99 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         33.3%        0.0%        |3.5%         3.4%         5.5%         2.2%         |
|TERMINAL (d)       |     0/1 (0%)     0/1 (0%)     0/2 (0%)     0/3 (0%)    |1/70 (1%)    2/74 (3%)    4/79 (5%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          ---          701          ---         |702          491          513          721          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.804N     (e)          P=0.522      (e)         |P=0.363N     P=0.646N     P=0.401      P=0.489N     |
|POLY 3             |     P=0.633N     (e)          P=0.595      (e)         |P=0.359N     P=0.645N     P=0.389      P=0.484N     |
|POLY 1.5           |     P=0.627N     (e)          P=0.586      (e)         |P=0.358N     P=0.643N     P=0.388      P=0.483N     |
|POLY 6             |     P=0.637N     (e)          P=0.610      (e)         |P=0.361N     P=0.648N     P=0.385      P=0.487N     |
|LOGISTIC REGRESSION|     P=0.617N     (e)          P=0.445      (e)         |P=0.348N     P=0.636N     P=0.388      P=0.482N     |
|COCH-ARM / FISHERS |     P=0.629N     (e)          P=0.600      (e)         |P=0.351N     P=0.639N     P=0.390      P=0.475N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mammary Gland: Duct                                                                                                              |
|     Dilatation                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/2 (0%)     0/1 (0%)     0/3 (0%)     1/4 (25%)   |10/94 (11%)  15/98 (15%)  16/99 (16%)  17/99 (17%)  |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         25.0%       |11.5%        16.5%        17.1%        18.9%        |
|TERMINAL (d)       |     0/1 (0%)     0/1 (0%)     0/2 (0%)     0/3 (0%)    |6/70 (9%)    8/74 (11%)   10/79 (13%)  14/74 (19%)  |
|FIRST INCIDENCE    |     ---          ---          ---          568         |542          387          21           597          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.217      (e)          (e)          P=0.475     |P=0.219      P=0.230      P=0.210      P=0.138      |
|POLY 3             |     P=0.402      (e)          (e)          P=0.647     |P=0.207      P=0.229      P=0.192      P=0.122      |
|POLY 1.5           |     P=0.396      (e)          (e)          P=0.639     |P=0.212      P=0.228      P=0.189      P=0.125      |
|POLY 6             |     P=0.412      (e)          (e)          P=0.660     |P=0.200      P=0.228      P=0.191      P=0.118      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.236      P=0.232      P=0.189      P=0.127      |
|COCH-ARM / FISHERS |     P=0.371      (e)          (e)          P=0.667     |P=0.231      P=0.228      P=0.181      P=0.135      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 42
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mesentery: Fat                                                                                                                   |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/13 (8%)    3/16 (19%)   2/8 (25%)    0/10 (0%)   |6/36 (17%)   4/27 (15%)   5/30 (17%)   4/30 (13%)   |
|POLY-3 ADJUSTED (b)|     8.1%         19.0%        26.8%        0.0%        |17.3%        16.1%        16.8%        14.1%        |
|TERMINAL (d)       |     1/10 (10%)   3/13 (23%)   2/7 (29%)    0/7 (0%)    |4/24 (17%)   4/20 (20%)   5/29 (17%)   3/25 (12%)   |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      ---         |701          735 (T)      735 (T)      715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.259N     P=0.398      P=0.370      P=0.571N    |P=0.375N     P=0.462N     P=0.389N     P=0.350N     |
|POLY 3             |     P=0.243N     P=0.395      P=0.319      P=0.557N    |P=0.466N     P=0.589N     P=0.608N     P=0.501N     |
|POLY 1.5           |     P=0.237N     P=0.388      P=0.322      P=0.555N    |P=0.466N     P=0.578N     P=0.618N     P=0.498N     |
|POLY 6             |     P=0.252N     P=0.404      P=0.319      P=0.561N    |P=0.461N     P=0.598N     P=0.594N     P=0.497N     |
|LOGISTIC REGRESSION|     P=0.259N     P=0.398      P=0.370      (e)         |P=0.450N     P=0.593N     P=0.581N     P=0.495N     |
|COCH-ARM / FISHERS |     P=0.228N     P=0.383      P=0.316      P=0.565N    |P=0.461N     P=0.563N     P=0.627      P=0.491N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Mesentery: Fat                                                                                                                   |
|     Necrosis                                                                                                                    |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/13 (85%)  11/16 (69%)  4/8 (50%)    6/10 (60%)  |22/36 (61%)  16/27 (59%)  23/30 (77%)  22/30 (73%)  |
|POLY-3 ADJUSTED (b)|     84.6%        69.3%        53.7%        64.2%       |62.5%        61.8%        77.4%        73.5%        |
|TERMINAL (d)       |     8/10 (80%)   10/13 (77%)  4/7 (57%)    5/7 (71%)   |17/24 (71%)  13/20 (65%)  23/29 (79%)  18/25 (72%)  |
|FIRST INCIDENCE    |     582          722          734 (T)      705         |603          496          735 (T)      474          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.412N     P=0.334N     P=0.063N     P=0.304N    |P=0.452      P=0.291N     P=0.316N     P=0.524N     |
|POLY 3             |     P=0.368N     P=0.304N     P=0.154N     P=0.270N    |P=0.231      P=0.586N     P=0.149      P=0.246      |
|POLY 1.5           |     P=0.334N     P=0.298N     P=0.132N     P=0.236N    |P=0.211      P=0.571N     P=0.144      P=0.232      |
|POLY 6             |     P=0.415N     P=0.315N     P=0.185N     P=0.322N    |P=0.262      P=0.596N     P=0.159      P=0.270      |
|LOGISTIC REGRESSION|     P=0.361N     P=0.314N     P=0.120N     P=0.212N    |P=0.182      P=0.585N     P=0.200      P=0.227      |
|COCH-ARM / FISHERS |     P=0.292N     P=0.292N     P=0.115N     P=0.197N    |P=0.186      P=0.543N     P=0.139      P=0.216      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 43
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Nose                                                                                                                             |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    2/99 (2%)    3/100 (3%)   2/97 (2%)   |0/99 (0%)    0/100 (0%)   0/99 (0%)    0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     1.1%         2.3%         3.2%         2.4%        |0.0%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     1/76 (1%)    2/72 (3%)    3/84 (4%)    2/61 (3%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      734 (T)     |---          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.472      P=0.481      P=0.343      P=0.424     |(e)          (e)          (e)          (e)          |
|POLY 3             |     P=0.529      P=0.485      P=0.311      P=0.468     |(e)          (e)          (e)          (e)          |
|POLY 1.5           |     P=0.541      P=0.491      P=0.311      P=0.478     |(e)          (e)          (e)          (e)          |
|POLY 6             |     P=0.514      P=0.479      P=0.313      P=0.457     |(e)          (e)          (e)          (e)          |
|LOGISTIC REGRESSION|     P=0.472      P=0.481      P=0.343      P=0.424     |(e)          (e)          (e)          (e)          |
|COCH-ARM / FISHERS |     P=0.559      P=0.500      P=0.314      P=0.492     |(e)          (e)          (e)          (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary                                                                                                                            |
|     Angiectasis                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |0/79 (0%)    2/91 (2%)    3/95 (3%)    0/94 (0%)    |
|POLY-3 ADJUSTED (b)|                                                        |0.0%         2.4%         3.4%         0.0%         |
|TERMINAL (d)       |                                                        |0/65 (0%)    1/70 (1%)    3/78 (4%)    0/72 (0%)    |
|FIRST INCIDENCE    |                                                        |---          713          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.281N     P=0.251      P=0.157      (e)          |
|POLY 3             |                                                        |P=0.279N     P=0.263      P=0.153      (e)          |
|POLY 1.5           |                                                        |P=0.276N     P=0.265      P=0.154      (e)          |
|POLY 6             |                                                        |P=0.280N     P=0.261      P=0.150      (e)          |
|LOGISTIC REGRESSION|                                                        |P=0.274N     P=0.263      P=0.157      (e)          |
|COCH-ARM / FISHERS |                                                        |P=0.268N     P=0.285      P=0.160      (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 44
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary                                                                                                                            |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |4/79 (5%)    3/91 (3%)    3/95 (3%)    5/94 (5%)    |
|POLY-3 ADJUSTED (b)|                                                        |5.4%         3.6%         3.4%         5.9%         |
|TERMINAL (d)       |                                                        |3/65 (5%)    1/70 (1%)    1/78 (1%)    3/72 (4%)    |
|FIRST INCIDENCE    |                                                        |703          505          659          690          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.343      P=0.476N     P=0.444N     P=0.542      |
|POLY 3             |                                                        |P=0.367      P=0.436N     P=0.409N     P=0.584      |
|POLY 1.5           |                                                        |P=0.369      P=0.433N     P=0.407N     P=0.588      |
|POLY 6             |                                                        |P=0.366      P=0.439N     P=0.414N     P=0.580      |
|LOGISTIC REGRESSION|                                                        |P=0.383      P=0.406N     P=0.405N     P=0.585      |
|COCH-ARM / FISHERS |                                                        |P=0.381      P=0.422N     P=0.399N     P=0.608      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary                                                                                                                            |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |22/79 (28%)  23/91 (25%)  30/95 (32%)  33/94 (35%)  |
|POLY-3 ADJUSTED (b)|                                                        |29.4%        27.5%        34.1%        38.7%        |
|TERMINAL (d)       |                                                        |19/65 (29%)  21/70 (30%)  28/78 (36%)  30/72 (42%)  |
|FIRST INCIDENCE    |                                                        |542          491          692          687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.062      P=0.532N     P=0.330      P=0.113      |
|POLY 3             |                                                        |P=0.074      P=0.466N     P=0.318      P=0.140      |
|POLY 1.5           |                                                        |P=0.079      P=0.451N     P=0.332      P=0.153      |
|POLY 6             |                                                        |P=0.072      P=0.485N     P=0.295      P=0.130      |
|LOGISTIC REGRESSION|                                                        |P=0.077      P=0.464N     P=0.307      P=0.141      |
|COCH-ARM / FISHERS |                                                        |P=0.102      P=0.418N     P=0.357      P=0.196      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 45
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Ovary                                                                                                                            |
|     Inflammation Chronic                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |0/79 (0%)    0/91 (0%)    2/95 (2%)    0/94 (0%)    |
|POLY-3 ADJUSTED (b)|                                                        |0.0%         0.0%         2.3%         0.0%         |
|TERMINAL (d)       |                                                        |0/65 (0%)    0/70 (0%)    2/78 (3%)    0/72 (0%)    |
|FIRST INCIDENCE    |                                                        |---          ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.625N     (e)          P=0.280      (e)          |
|POLY 3             |                                                        |P=0.621N     (e)          P=0.276      (e)          |
|POLY 1.5           |                                                        |P=0.620N     (e)          P=0.278      (e)          |
|POLY 6             |                                                        |P=0.622N     (e)          P=0.273      (e)          |
|LOGISTIC REGRESSION|                                                        |(e)          (e)          P=0.280      (e)          |
|COCH-ARM / FISHERS |                                                        |P=0.614N     (e)          P=0.297      (e)          |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Infiltration Cellular Focal Mixed Cell                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    0/99 (0%)    1/98 (1%)    1/95 (1%)   |7/87 (8%)    12/94 (13%)  7/96 (7%)    10/94 (11%)  |
|POLY-3 ADJUSTED (b)|     1.1%         0.0%         1.1%         1.2%        |8.5%         13.9%        7.9%         11.5%        |
|TERMINAL (d)       |     1/76 (1%)    0/72 (0%)    1/84 (1%)    1/62 (2%)   |7/70 (10%)   11/74 (15%)  7/79 (9%)    10/74 (14%)  |
|FIRST INCIDENCE    |     734 (T)      ---          734 (T)      734 (T)     |735 (T)      729          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.503      P=0.511N     P=0.739N     P=0.715     |P=0.479      P=0.198      P=0.517N     P=0.347      |
|POLY 3             |     P=0.535      P=0.508N     P=0.760      P=0.738     |P=0.494      P=0.195      P=0.549N     P=0.355      |
|POLY 1.5           |     P=0.539      P=0.505N     P=0.759      P=0.743     |P=0.494      P=0.200      P=0.544N     P=0.357      |
|POLY 6             |     P=0.530      P=0.512N     P=0.758N     P=0.731     |P=0.494      P=0.191      P=0.558N     P=0.351      |
|LOGISTIC REGRESSION|     P=0.503      (e)          P=0.739N     P=0.715     |P=0.479      P=0.196      P=0.517N     P=0.347      |
|COCH-ARM / FISHERS |     P=0.546      P=0.500N     P=0.749      P=0.741     |P=0.496      P=0.215      P=0.533N     P=0.367      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 46
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    4/99 (4%)    2/98 (2%)    0/95 (0%)   |5/87 (6%)    0/94 (0%)    1/96 (1%)    3/94 (3%)    |
|POLY-3 ADJUSTED (b)|     1.1%         4.5%         2.2%         0.0%        |6.1%         0.0%         1.1%         3.4%         |
|TERMINAL (d)       |     0/76 (0%)    4/72 (6%)    2/84 (2%)    0/62 (0%)   |3/70 (4%)    0/74 (0%)    0/79 (0%)    2/74 (3%)    |
|FIRST INCIDENCE    |     717          734 (T)      734 (T)      ---         |667          ---          521          715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.145N     P=0.169      P=0.533      P=0.530N    |P=0.475      P=0.033N*    P=0.095N     P=0.337N     |
|POLY 3             |     P=0.135N     P=0.170      P=0.500      P=0.520N    |P=0.491      P=0.029N*    P=0.087N     P=0.327N     |
|POLY 1.5           |     P=0.129N     P=0.175      P=0.498      P=0.515N    |P=0.489      P=0.029N*    P=0.086N     P=0.324N     |
|POLY 6             |     P=0.142N     P=0.164      P=0.503      P=0.526N    |P=0.494      P=0.030N*    P=0.089N     P=0.330N     |
|LOGISTIC REGRESSION|     P=0.136N     P=0.162      P=0.505      P=0.519N    |P=0.484      P=0.030N*    P=0.078N     P=0.323N     |
|COCH-ARM / FISHERS |     P=0.122N     P=0.184      P=0.496      P=0.510N    |P=0.484      P=0.024N*    P=0.084N     P=0.318N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Lipomatosis                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/99 (1%)    11/99 (11%)  14/98 (14%)  1/95 (1%)   |21/87 (24%)  16/94 (17%)  23/96 (24%)  29/94 (31%)  |
|POLY-3 ADJUSTED (b)|     1.1%         12.5%        15.2%        1.2%        |25.1%        18.4%        25.4%        32.8%        |
|TERMINAL (d)       |     0/76 (0%)    10/72 (14%)  13/84 (16%)  0/62 (0%)   |16/70 (23%)  14/74 (19%)  18/79 (23%)  25/74 (34%)  |
|FIRST INCIDENCE    |     717          703          640          568         |334          505          472          474          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.057N     P=0.003 **   P<0.001 **   P=0.734     |P=0.034 *    P=0.192N     P=0.555N     P=0.175      |
|POLY 3             |     P=0.041N*    P=0.002 **   P<0.001 **   P=0.739     |P=0.035 *    P=0.192N     P=0.551      P=0.169      |
|POLY 1.5           |     P=0.037N*    P=0.003 **   P<0.001 **   P=0.744     |P=0.036 *    P=0.182N     P=0.559      P=0.177      |
|POLY 6             |     P=0.046N*    P=0.002 **   P<0.001 **   P=0.733     |P=0.034 *    P=0.202N     P=0.536      P=0.160      |
|LOGISTIC REGRESSION|     P=0.042N*    P=0.002 **   P<0.001 **   P=0.730N    |P=0.038 *    P=0.158N     P=0.548N     P=0.196      |
|COCH-ARM / FISHERS |     P=0.035N*    P=0.002 **   P<0.001 **   P=0.741     |P=0.038 *    P=0.158N     P=0.557N     P=0.200      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 47
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas                                                                                                                         |
|     Vacuolization Cytoplasmic                                                                                                   |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     16/99 (16%)  31/99 (31%)  28/98 (29%)  5/95 (5%)   |12/87 (14%)  21/94 (22%)  18/96 (19%)  16/94 (17%)  |
|POLY-3 ADJUSTED (b)|     17.4%        35.2%        30.4%        6.0%        |14.6%        23.8%        20.3%        18.2%        |
|TERMINAL (d)       |     15/76 (20%)  31/72 (43%)  27/84 (32%)  4/62 (7%)   |12/70 (17%)  18/74 (24%)  18/79 (23%)  15/74 (20%)  |
|FIRST INCIDENCE    |     715          734 (T)      654          577         |735 (T)      387          735 (T)      497          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P<0.001N**   P=0.004 **   P=0.061      P=0.032N*   |P=0.470N     P=0.084      P=0.258      P=0.319      |
|POLY 3             |     P<0.001N**   P=0.005 **   P=0.028 *    P=0.017N*   |P=0.447N     P=0.093      P=0.222      P=0.339      |
|POLY 1.5           |     P<0.001N**   P=0.006 **   P=0.027 *    P=0.015N*   |P=0.447N     P=0.094      P=0.229      P=0.340      |
|POLY 6             |     P<0.001N**   P=0.003 **   P=0.030 *    P=0.020N*   |P=0.446N     P=0.093      P=0.211      P=0.338      |
|LOGISTIC REGRESSION|     P<0.001N**   P=0.004 **   P=0.036 *    P=0.022N*   |P=0.443N     P=0.095      P=0.258      P=0.331      |
|COCH-ARM / FISHERS |     P<0.001N**   P=0.009 **   P=0.027 *    P=0.012N*   |P=0.443N     P=0.097      P=0.241      P=0.348      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Acinus                                                                                                                 |
|     Cytoplasmic Alteration                                                                                                      |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/99 (1%)    3/98 (3%)    0/95 (0%)   |1/87 (1%)    3/94 (3%)    4/96 (4%)    2/94 (2%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.1%         3.2%         0.0%        |1.2%         3.5%         4.5%         2.3%         |
|TERMINAL (d)       |     0/76 (0%)    1/72 (1%)    0/84 (0%)    0/62 (0%)   |1/70 (1%)    1/74 (1%)    2/79 (3%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          734 (T)      556          ---         |735 (T)      496          578          687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.443N     P=0.489      P=0.129      (e)         |P=0.559N     P=0.321      P=0.211      P=0.513      |
|POLY 3             |     P=0.435N     P=0.492      P=0.123      (e)         |P=0.549N     P=0.328      P=0.211      P=0.523      |
|POLY 1.5           |     P=0.427N     P=0.495      P=0.122      (e)         |P=0.549N     P=0.329      P=0.211      P=0.523      |
|POLY 6             |     P=0.444N     P=0.488      P=0.126      (e)         |P=0.550N     P=0.326      P=0.209      P=0.522      |
|LOGISTIC REGRESSION|     P=0.387N     P=0.489      P=0.115      (e)         |P=0.544N     P=0.357      P=0.228      P=0.524      |
|COCH-ARM / FISHERS |     P=0.416N     P=0.500      P=0.121      (e)         |P=0.546N     P=0.340      P=0.216      P=0.529      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 48
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Acinus                                                                                                                 |
|     Hypertrophy Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/99 (1%)    1/98 (1%)    0/95 (0%)   |1/87 (1%)    0/94 (0%)    2/96 (2%)    0/94 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         1.1%         1.1%         0.0%        |1.2%         0.0%         2.2%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    1/72 (1%)    1/84 (1%)    0/62 (0%)   |1/70 (1%)    0/74 (0%)    1/79 (1%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          734 (T)      734 (T)      ---         |735 (T)      ---          578          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.547N     P=0.489      P=0.520      (e)         |P=0.442N     P=0.489N     P=0.532      P=0.489N     |
|POLY 3             |     P=0.525N     P=0.492      P=0.500      (e)         |P=0.432N     P=0.490N     P=0.530      P=0.487N     |
|POLY 1.5           |     P=0.519N     P=0.495      P=0.499      (e)         |P=0.433N     P=0.489N     P=0.531      P=0.487N     |
|POLY 6             |     P=0.531N     P=0.488      P=0.502      (e)         |P=0.432N     P=0.491N     P=0.527      P=0.488N     |
|LOGISTIC REGRESSION|     (e)          P=0.489      P=0.520      (e)         |P=0.434N     (e)          P=0.548      (e)          |
|COCH-ARM / FISHERS |     P=0.510N     P=0.500      P=0.497      (e)         |P=0.435N     P=0.481N     P=0.537      P=0.481N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pancreas: Duct                                                                                                                   |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    1/99 (1%)    1/98 (1%)    2/95 (2%)   |1/87 (1%)    1/94 (1%)    3/96 (3%)    1/94 (1%)    |
|POLY-3 ADJUSTED (b)|     2.2%         1.1%         1.1%         2.4%        |1.2%         1.2%         3.4%         1.1%         |
|TERMINAL (d)       |     2/76 (3%)    1/72 (1%)    1/84 (1%)    1/62 (2%)   |1/70 (1%)    1/74 (1%)    2/79 (3%)    1/74 (1%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      525         |735 (T)      735 (T)      654          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.430      P=0.519N     P=0.465N     P=0.631     |P=0.575N     P=0.749N     P=0.339      P=0.749N     |
|POLY 3             |     P=0.472      P=0.515N     P=0.500N     P=0.659     |P=0.566N     P=0.749N     P=0.337      P=0.746N     |
|POLY 1.5           |     P=0.477      P=0.509N     P=0.502N     P=0.667     |P=0.567N     P=0.748N     P=0.339      P=0.746N     |
|POLY 6             |     P=0.465      P=0.521N     P=0.496N     P=0.650     |P=0.566N     P=0.751N     P=0.333      P=0.747N     |
|LOGISTIC REGRESSION|     P=0.490      P=0.519N     P=0.465N     P=0.683N    |P=0.566N     P=0.749N     P=0.340      P=0.749N     |
|COCH-ARM / FISHERS |     P=0.484      P=0.500N     P=0.504N     P=0.674     |P=0.567N     P=0.732N     P=0.348      P=0.732N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 49
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Parathyroid Gland                                                                                                                |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/66 (2%)    2/55 (4%)    2/72 (3%)    0/65 (0%)   |11/63 (17%)  8/53 (15%)   7/53 (13%)   6/53 (11%)   |
|POLY-3 ADJUSTED (b)|     1.6%         4.2%         3.0%         0.0%        |18.3%        16.3%        14.2%        12.1%        |
|TERMINAL (d)       |     1/48 (2%)    2/37 (5%)    0/61 (0%)    0/40 (0%)   |10/48 (21%)  7/40 (18%)   5/41 (12%)   4/42 (10%)   |
|FIRST INCIDENCE    |     734 (T)      734 (T)      585          ---         |733          698          472          684          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.240N     P=0.410      P=0.526      P=0.536N    |P=0.227N     P=0.453N     P=0.315N     P=0.209N     |
|POLY 3             |     P=0.230N     P=0.416      P=0.536      P=0.520N    |P=0.262N     P=0.491N     P=0.376N     P=0.265N     |
|POLY 1.5           |     P=0.222N     P=0.424      P=0.533      P=0.513N    |P=0.264N     P=0.481N     P=0.373N     P=0.262N     |
|POLY 6             |     P=0.240N     P=0.407      P=0.543      P=0.526N    |P=0.260N     P=0.503N     P=0.382N     P=0.267N     |
|LOGISTIC REGRESSION|     P=0.192N     P=0.410      P=0.540      (e)         |P=0.263N     P=0.523N     P=0.356N     P=0.276N     |
|COCH-ARM / FISHERS |     P=0.209N     P=0.431      P=0.533      P=0.504N    |P=0.261N     P=0.466N     P=0.357N     P=0.254N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Parathyroid Gland                                                                                                                |
|     Inflammation Focal                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/66 (0%)    0/55 (0%)    0/72 (0%)    0/65 (0%)   |0/63 (0%)    0/53 (0%)    2/53 (4%)    0/53 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         4.2%         0.0%         |
|TERMINAL (d)       |     0/48 (0%)    0/37 (0%)    0/61 (0%)    0/40 (0%)   |0/48 (0%)    0/40 (0%)    2/41 (5%)    0/42 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.643N     (e)          P=0.205      (e)          |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.658N     (e)          P=0.190      (e)          |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.657N     (e)          P=0.193      (e)          |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.659N     (e)          P=0.187      (e)          |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |(e)          (e)          P=0.205      (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.653N     (e)          P=0.207      (e)          |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 50
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     9/83 (11%)   7/84 (8%)    6/82 (7%)    4/84 (5%)   |0/83 (0%)    2/92 (2%)    3/87 (3%)    1/89 (1%)    |
|POLY-3 ADJUSTED (b)|     11.5%        9.2%         7.7%         5.4%        |0.0%         2.4%         3.6%         1.2%         |
|TERMINAL (d)       |     7/66 (11%)   6/64 (9%)    6/72 (8%)    3/57 (5%)   |0/67 (0%)    2/71 (3%)    3/76 (4%)    0/71 (0%)    |
|FIRST INCIDENCE    |     617          542          734 (T)      630         |---          735 (T)      735 (T)      684          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.206N     P=0.426N     P=0.242N     P=0.191N    |P=0.573N     P=0.252      P=0.146      P=0.502      |
|POLY 3             |     P=0.158N     P=0.418N     P=0.300N     P=0.145N    |P=0.576N     P=0.258      P=0.135      P=0.511      |
|POLY 1.5           |     P=0.148N     P=0.406N     P=0.302N     P=0.134N    |P=0.577N     P=0.259      P=0.133      P=0.511      |
|POLY 6             |     P=0.169N     P=0.432N     P=0.296N     P=0.158N    |P=0.575N     P=0.257      P=0.136      P=0.512      |
|LOGISTIC REGRESSION|     P=0.149N     P=0.401N     P=0.295N     P=0.137N    |P=0.577N     P=0.252      P=0.146      P=0.520      |
|COCH-ARM / FISHERS |     P=0.134N     P=0.387N     P=0.303N     P=0.119N    |P=0.572N     P=0.275      P=0.132      P=0.517      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     1/83 (1%)    2/84 (2%)    1/82 (1%)    3/84 (4%)   |37/83 (45%)  50/92 (54%)  33/87 (38%)  35/89 (39%)  |
|POLY-3 ADJUSTED (b)|     1.3%         2.6%         1.3%         4.0%        |47.8%        56.6%        39.1%        41.2%        |
|TERMINAL (d)       |     1/66 (2%)    2/64 (3%)    0/72 (0%)    2/57 (4%)   |35/67 (52%)  41/71 (58%)  28/76 (37%)  26/71 (37%)  |
|FIRST INCIDENCE    |     734 (T)      734 (T)      590          568         |691          387          472          474          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.210      P=0.489      P=0.752N     P=0.262     |P=0.117N     P=0.073      P=0.142N     P=0.341N     |
|POLY 3             |     P=0.245      P=0.490      P=0.760N     P=0.290     |P=0.086N     P=0.161      P=0.168N     P=0.245N     |
|POLY 1.5           |     P=0.252      P=0.495      P=0.759      P=0.299     |P=0.096N     P=0.143      P=0.189N     P=0.273N     |
|POLY 6             |     P=0.237      P=0.484      P=0.757N     P=0.281     |P=0.075N     P=0.180      P=0.150N     P=0.215N     |
|LOGISTIC REGRESSION|     P=0.283      P=0.489      P=0.756      P=0.327     |P=0.105N     P=0.111      P=0.188N     P=0.315N     |
|COCH-ARM / FISHERS |     P=0.262      P=0.505      P=0.748      P=0.315     |P=0.099N     P=0.127      P=0.234N     P=0.294N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 51
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Pituitary Gland: Pars Distalis                                                                                                   |
|     Hypertrophy Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/83 (0%)    0/84 (0%)    0/82 (0%)    0/84 (0%)   |0/83 (0%)    0/92 (0%)    3/87 (3%)    1/89 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         3.6%         1.2%         |
|TERMINAL (d)       |     0/66 (0%)    0/64 (0%)    0/72 (0%)    0/57 (0%)   |0/67 (0%)    0/71 (0%)    2/76 (3%)    1/71 (1%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          513          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.503      (e)          P=0.139      P=0.512      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.507      (e)          P=0.136      P=0.511      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.505      (e)          P=0.134      P=0.511      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.508      (e)          P=0.138      P=0.511      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.521      (e)          P=0.089      P=0.512      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.507      (e)          P=0.132      P=0.517      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Preputial Gland                                                                                                                  |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     25/98 (26%)  56/98 (57%)  49/100 (49%) 37/95 (39%) |                                                    |
|POLY-3 ADJUSTED (b)|     27.0%        62.1%        50.6%        42.3%       |                                                    |
|TERMINAL (d)       |     15/75 (20%)  44/72 (61%)  38/84 (45%)  20/61 (33%) |                                                    |
|FIRST INCIDENCE    |     624          589          556          510         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.399      P<0.001 **   P=0.004 **   P=0.012 *   |                                                    |
|POLY 3             |     P=0.365N     P<0.001 **   P<0.001 **   P=0.022 *   |                                                    |
|POLY 1.5           |     P=0.344N     P<0.001 **   P<0.001 **   P=0.025 *   |                                                    |
|POLY 6             |     P=0.388N     P<0.001 **   P<0.001 **   P=0.019 *   |                                                    |
|LOGISTIC REGRESSION|     P=0.366N     P<0.001 **   P<0.001 **   P=0.029 *   |                                                    |
|COCH-ARM / FISHERS |     P=0.318N     P<0.001 **   P<0.001 **   P=0.032 *   |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 52
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Preputial Gland                                                                                                                  |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     84/98 (86%)  88/98 (90%)  93/100 (93%) 76/95 (80%) |                                                    |
|POLY-3 ADJUSTED (b)|     87.6%        93.6%        94.4%        82.7%       |                                                    |
|TERMINAL (d)       |     65/75 (87%)  69/72 (96%)  80/84 (95%)  48/61 (79%) |                                                    |
|FIRST INCIDENCE    |     386          461          449          448         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.320      P=0.167      P=0.529      P=0.253     |                                                    |
|POLY 3             |     P=0.014N*    P=0.104      P=0.072      P=0.226N    |                                                    |
|POLY 1.5           |     P=0.017N*    P=0.153      P=0.069      P=0.213N    |                                                    |
|POLY 6             |     P=0.013N*    P=0.069      P=0.083      P=0.239N    |                                                    |
|LOGISTIC REGRESSION|     P=0.047N*    P=0.142      P=0.074      P=0.253N    |                                                    |
|COCH-ARM / FISHERS |     P=0.025N*    P=0.257      P=0.075      P=0.194N    |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Preputial Gland                                                                                                                  |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     46/98 (47%)  37/98 (38%)  56/100 (56%) 53/95 (56%) |                                                    |
|POLY-3 ADJUSTED (b)|     49.8%        41.9%        57.9%        60.8%       |                                                    |
|TERMINAL (d)       |     39/75 (52%)  31/72 (43%)  47/84 (56%)  36/61 (59%) |                                                    |
|FIRST INCIDENCE    |     617          629          549          510         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.002 **   P=0.195N     P=0.292      P=0.022 *   |                                                    |
|POLY 3             |     P=0.023 *    P=0.179N     P=0.162      P=0.087     |                                                    |
|POLY 1.5           |     P=0.026 *    P=0.153N     P=0.146      P=0.105     |                                                    |
|POLY 6             |     P=0.021 *    P=0.214N     P=0.188      P=0.072     |                                                    |
|LOGISTIC REGRESSION|     P=0.015 *    P=0.192N     P=0.130      P=0.069     |                                                    |
|COCH-ARM / FISHERS |     P=0.035 *    P=0.124N     P=0.129      P=0.139     |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 53
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Prostate                                                                                                                         |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/98 (2%)    4/92 (4%)    4/94 (4%)    2/94 (2%)   |                                                    |
|POLY-3 ADJUSTED (b)|     2.2%         4.8%         4.5%         2.5%        |                                                    |
|TERMINAL (d)       |     1/76 (1%)    4/69 (6%)    4/80 (5%)    2/59 (3%)   |                                                    |
|FIRST INCIDENCE    |     684          734 (T)      734 (T)      734 (T)     |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.504N     P=0.297      P=0.360      P=0.610     |                                                    |
|POLY 3             |     P=0.434N     P=0.294      P=0.323      P=0.649     |                                                    |
|POLY 1.5           |     P=0.418N     P=0.301      P=0.322      P=0.661     |                                                    |
|POLY 6             |     P=0.455N     P=0.286      P=0.325      P=0.634     |                                                    |
|LOGISTIC REGRESSION|     P=0.461N     P=0.288      P=0.325      P=0.643     |                                                    |
|COCH-ARM / FISHERS |     P=0.394N     P=0.312      P=0.322      P=0.674     |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Prostate: Epithelium                                                                                                             |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     49/98 (50%)  52/92 (57%)  56/94 (60%)  47/94 (50%) |                                                    |
|POLY-3 ADJUSTED (b)|     52.9%        62.3%        61.1%        54.4%       |                                                    |
|TERMINAL (d)       |     47/76 (62%)  48/69 (70%)  49/80 (61%)  33/59 (56%) |                                                    |
|FIRST INCIDENCE    |     386          589          430          448         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.190      P=0.142      P=0.302      P=0.130     |                                                    |
|POLY 3             |     P=0.331N     P=0.128      P=0.160      P=0.476     |                                                    |
|POLY 1.5           |     P=0.312N     P=0.161      P=0.139      P=0.506     |                                                    |
|POLY 6             |     P=0.355N     P=0.101      P=0.199      P=0.447     |                                                    |
|LOGISTIC REGRESSION|     P=0.424N     P=0.115      P=0.120      P=0.452     |                                                    |
|COCH-ARM / FISHERS |     P=0.284N     P=0.225      P=0.118      P=0.557N    |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 54
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Salivary Glands                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     66/99 (67%)  65/99 (66%)  72/98 (73%)  61/96 (64%) |74/94 (79%)  83/98 (85%)  77/97 (79%)  75/98 (77%)  |
|POLY-3 ADJUSTED (b)|     70.1%        71.3%        75.9%        67.8%       |80.9%        87.7%        81.2%        78.4%        |
|TERMINAL (d)       |     58/76 (76%)  56/72 (78%)  66/84 (79%)  44/62 (71%) |60/70 (86%)  67/74 (91%)  63/79 (80%)  57/73 (78%)  |
|FIRST INCIDENCE    |     520          400          449          466         |334          387          472          183          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.175      P=0.406      P=0.543N     P=0.212     |P=0.327N     P=0.255      P=0.313N     P=0.474N     |
|POLY 3             |     P=0.292N     P=0.494      P=0.225      P=0.428N    |P=0.142N     P=0.133      P=0.551      P=0.404N     |
|POLY 1.5           |     P=0.291N     P=0.550      P=0.207      P=0.406N    |P=0.159N     P=0.144      P=0.529      P=0.421N     |
|POLY 6             |     P=0.297N     P=0.428      P=0.256      P=0.457N    |P=0.126N     P=0.122      P=0.573      P=0.387N     |
|LOGISTIC REGRESSION|     P=0.447N     P=0.420      P=0.183      P=0.537N    |P=0.217N     P=0.158      P=0.528      P=0.450N     |
|COCH-ARM / FISHERS |     P=0.294N     P=0.500N     P=0.188      P=0.379N    |P=0.185N     P=0.188      P=0.526      P=0.425N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Seminal Vesicle                                                                                                                  |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/97 (0%)    1/98 (1%)    3/98 (3%)   |                                                    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         1.1%         3.5%        |                                                    |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    1/62 (2%)   |                                                    |
|FIRST INCIDENCE    |     ---          ---          701          483         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.019 *    (e)          P=0.509      P=0.104     |                                                    |
|POLY 3             |     P=0.023 *    (e)          P=0.499      P=0.109     |                                                    |
|POLY 1.5           |     P=0.024 *    (e)          P=0.499      P=0.113     |                                                    |
|POLY 6             |     P=0.022 *    (e)          P=0.501      P=0.104     |                                                    |
|LOGISTIC REGRESSION|     P=0.040 *    (e)          P=0.498      P=0.166     |                                                    |
|COCH-ARM / FISHERS |     P=0.026 *    (e)          P=0.497      P=0.121     |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 55
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Seminal Vesicle                                                                                                                  |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     80/99 (81%)  63/97 (65%)  59/98 (60%)  68/98 (69%) |                                                    |
|POLY-3 ADJUSTED (b)|     82.9%        67.8%        62.7%        74.4%       |                                                    |
|TERMINAL (d)       |     65/76 (86%)  49/72 (68%)  53/84 (63%)  50/62 (81%) |                                                    |
|FIRST INCIDENCE    |     386          474          527          458         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.071      P=0.051N     P<0.001N**   P=0.474     |                                                    |
|POLY 3             |     P=0.505      P=0.010N*    P<0.001N**   P=0.099N    |                                                    |
|POLY 1.5           |     P=0.516N     P=0.010N*    P<0.001N**   P=0.073N    |                                                    |
|POLY 6             |     P=0.426      P=0.010N*    P<0.001N**   P=0.134N    |                                                    |
|LOGISTIC REGRESSION|     P=0.533N     P=0.013N*    P<0.001N**   P=0.099N    |                                                    |
|COCH-ARM / FISHERS |     P=0.415N     P=0.009N**   P<0.001N**   P=0.045N*   |                                                    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Seminal Vesicle                                                                                                                  |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     2/99 (2%)    1/97 (1%)    2/98 (2%)    0/98 (0%)   |                                                    |
|POLY-3 ADJUSTED (b)|     2.2%         1.2%         2.2%         0.0%        |                                                    |
|TERMINAL (d)       |     2/76 (3%)    0/72 (0%)    2/84 (2%)    0/62 (0%)   |                                                    |
|FIRST INCIDENCE    |     734 (T)      719          734 (T)      ---         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.264N     P=0.514N     P=0.657N     P=0.285N    |                                                    |
|POLY 3             |     P=0.238N     P=0.520N     P=0.691      P=0.258N    |                                                    |
|POLY 1.5           |     P=0.231N     P=0.515N     P=0.690      P=0.251N    |                                                    |
|POLY 6             |     P=0.246N     P=0.525N     P=0.691N     P=0.266N    |                                                    |
|LOGISTIC REGRESSION|     P=0.250N     P=0.527N     P=0.657N     (e)         |                                                    |
|COCH-ARM / FISHERS |     P=0.222N     P=0.508N     P=0.686      P=0.251N    |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 56
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Skin                                                                                                                             |
|     Ulcer Focal                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/99 (1%)    0/100 (0%)   1/100 (1%)  |2/99 (2%)    0/100 (0%)   0/100 (0%)   0/100 (0%)   |
|POLY-3 ADJUSTED (b)|     0.0%         1.1%         0.0%         1.2%        |2.2%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |1/70 (1%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          725          ---          729         |691          ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.456      P=0.489      (e)          P=0.460     |P=0.366N     P=0.237N     P=0.232N     P=0.239N     |
|POLY 3             |     P=0.482      P=0.492      (e)          P=0.486     |P=0.364N     P=0.238N     P=0.236N     P=0.239N     |
|POLY 1.5           |     P=0.490      P=0.495      (e)          P=0.492     |P=0.364N     P=0.237N     P=0.237N     P=0.239N     |
|POLY 6             |     P=0.473      P=0.488      (e)          P=0.478     |P=0.363N     P=0.238N     P=0.236N     P=0.239N     |
|LOGISTIC REGRESSION|     P=0.477      P=0.488      (e)          P=0.472     |P=0.365N     P=0.237N     P=0.237N     P=0.238N     |
|COCH-ARM / FISHERS |     P=0.501      P=0.500      (e)          P=0.503     |P=0.364N     P=0.246N     P=0.246N     P=0.246N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen                                                                                                                           |
|     Hematopoietic Cell Proliferation                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     37/99 (37%)  43/98 (44%)  52/98 (53%)  36/93 (39%) |74/91 (81%)  77/93 (83%)  87/95 (92%)  83/93 (89%)  |
|POLY-3 ADJUSTED (b)|     39.2%        46.4%        54.1%        41.7%       |84.2%        85.5%        94.4%        90.8%        |
|TERMINAL (d)       |     29/76 (38%)  29/72 (40%)  43/84 (51%)  24/62 (39%) |63/70 (90%)  67/74 (91%)  77/79 (98%)  68/74 (92%)  |
|FIRST INCIDENCE    |     386          461          430          448         |397          64           472          85           |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.480      P=0.172      P=0.087      P=0.269     |P=0.181      P=0.525N     P=0.260      P=0.245      |
|POLY 3             |     P=0.385N     P=0.196      P=0.026 *    P=0.420     |P=0.147      P=0.486      P=0.017 *    P=0.123      |
|POLY 1.5           |     P=0.354N     P=0.202      P=0.022 *    P=0.445     |P=0.130      P=0.489      P=0.019 *    P=0.111      |
|POLY 6             |     P=0.422N     P=0.195      P=0.032 *    P=0.395     |P=0.174      P=0.480      P=0.013 *    P=0.139      |
|LOGISTIC REGRESSION|     P=0.285N     P=0.228      P=0.018 *    P=0.505     |P=0.113      P=0.413      P=0.021 *    P=0.084      |
|COCH-ARM / FISHERS |     P=0.311N     P=0.216      P=0.019 *    P=0.483     |P=0.110      P=0.472      P=0.033 *    P=0.095      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 57
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen                                                                                                                           |
|     Pigmentation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    1/98 (1%)    0/98 (0%)    0/93 (0%)   |17/91 (19%)  6/93 (6%)    8/95 (8%)    12/93 (13%)  |
|POLY-3 ADJUSTED (b)|     0.0%         1.1%         0.0%         0.0%        |20.0%        7.0%         9.0%         13.8%        |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |15/70 (21%)  3/74 (4%)    6/79 (8%)    11/74 (15%)  |
|FIRST INCIDENCE    |     ---          722          ---          ---         |696          547          645          730          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.632N     P=0.492      (e)          (e)         |P=0.469      P=0.011N*    P=0.024N*    P=0.167N     |
|POLY 3             |     P=0.618N     P=0.491      (e)          (e)         |P=0.471      P=0.011N*    P=0.032N*    P=0.189N     |
|POLY 1.5           |     P=0.614N     P=0.493      (e)          (e)         |P=0.468      P=0.011N*    P=0.033N*    P=0.192N     |
|POLY 6             |     P=0.622N     P=0.488      (e)          (e)         |P=0.471      P=0.010N*    P=0.032N*    P=0.186N     |
|LOGISTIC REGRESSION|     P=0.618N     P=0.489      (e)          (e)         |P=0.474      P=0.012N*    P=0.035N*    P=0.172N     |
|COCH-ARM / FISHERS |     P=0.608N     P=0.497      (e)          (e)         |P=0.462      P=0.010N*    P=0.033N*    P=0.191N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen: Lymphoid Follicle                                                                                                        |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     11/99 (11%)  12/98 (12%)  8/98 (8%)    14/93 (15%) |6/91 (7%)    4/93 (4%)    7/95 (7%)    3/93 (3%)    |
|POLY-3 ADJUSTED (b)|     11.6%        13.2%        8.5%         16.5%       |6.9%         4.6%         7.8%         3.4%         |
|TERMINAL (d)       |     1/76 (1%)    1/72 (1%)    1/84 (1%)    2/62 (3%)   |1/70 (1%)    0/74 (0%)    1/79 (1%)    0/74 (0%)    |
|FIRST INCIDENCE    |     520          474          549          466         |552          491          521          687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.172      P=0.443      P=0.303N     P=0.234     |P=0.259N     P=0.374N     P=0.515      P=0.253N     |
|POLY 3             |     P=0.175      P=0.455      P=0.317N     P=0.235     |P=0.248N     P=0.368N     P=0.532      P=0.241N     |
|POLY 1.5           |     P=0.185      P=0.469      P=0.320N     P=0.251     |P=0.248N     P=0.367N     P=0.531      P=0.240N     |
|POLY 6             |     P=0.165      P=0.440      P=0.311N     P=0.220     |P=0.248N     P=0.369N     P=0.532      P=0.241N     |
|LOGISTIC REGRESSION|     P=0.340      P=0.567N     P=0.338N     P=0.438     |P=0.248N     P=0.286N     P=0.578      P=0.221N     |
|COCH-ARM / FISHERS |     P=0.202      P=0.490      P=0.324N     P=0.275     |P=0.247N     P=0.360N     P=0.533      P=0.238N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 58
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen: Lymphoid Follicle                                                                                                        |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     21/99 (21%)  27/98 (28%)  17/98 (17%)  13/93 (14%) |31/91 (34%)  31/93 (33%)  32/95 (34%)  34/93 (37%)  |
|POLY-3 ADJUSTED (b)|     22.8%        30.8%        18.4%        16.0%       |36.5%        35.5%        35.7%        39.0%        |
|TERMINAL (d)       |     20/76 (26%)  27/72 (38%)  16/84 (19%)  13/62 (21%) |31/70 (44%)  29/74 (39%)  30/79 (38%)  32/74 (43%)  |
|FIRST INCIDENCE    |     683          734 (T)      654          734 (T)     |735 (T)      64           21           687          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.082N     P=0.136      P=0.191N     P=0.242N    |P=0.359      P=0.456N     P=0.392N     P=0.486      |
|POLY 3             |     P=0.049N*    P=0.146      P=0.288N     P=0.174N    |P=0.349      P=0.512N     P=0.521N     P=0.429      |
|POLY 1.5           |     P=0.043N*    P=0.164      P=0.297N     P=0.155N    |P=0.342      P=0.514N     P=0.523N     P=0.420      |
|POLY 6             |     P=0.058N     P=0.128      P=0.274N     P=0.196N    |P=0.360      P=0.504N     P=0.525N     P=0.441      |
|LOGISTIC REGRESSION|     P=0.064N     P=0.128      P=0.262N     P=0.220N    |P=0.361      P=0.543N     P=0.553N     P=0.480      |
|COCH-ARM / FISHERS |     P=0.035N*    P=0.192      P=0.306N     P=0.131N    |P=0.349      P=0.520N     P=0.540N     P=0.421      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Spleen: Red Pulp                                                                                                                 |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    4/98 (4%)    3/98 (3%)    4/93 (4%)   |2/91 (2%)    3/93 (3%)    0/95 (0%)    0/93 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         4.5%         3.2%         4.9%        |2.3%         3.5%         0.0%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    3/72 (4%)    0/84 (0%)    1/62 (2%)   |0/70 (0%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          618          556          577         |542          496          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.193      P=0.059      P=0.123      P=0.048 *   |P=0.118N     P=0.501      P=0.234N     P=0.239N     |
|POLY 3             |     P=0.202      P=0.058      P=0.124      P=0.050     |P=0.113N     P=0.504      P=0.233N     P=0.235N     |
|POLY 1.5           |     P=0.210      P=0.060      P=0.122      P=0.052     |P=0.113N     P=0.504      P=0.232N     P=0.235N     |
|POLY 6             |     P=0.194      P=0.057      P=0.128      P=0.048 *   |P=0.112N     P=0.505      P=0.235N     P=0.234N     |
|LOGISTIC REGRESSION|     P=0.267      P=0.063      P=0.104      P=0.064     |P=0.112N     P=0.570      P=0.200N     P=0.208N     |
|COCH-ARM / FISHERS |     P=0.224      P=0.059      P=0.121      P=0.053     |P=0.114N     P=0.510      P=0.238N     P=0.243N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 59
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach                                                                                                             |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/98 (0%)    0/97 (0%)    0/96 (0%)   |0/91 (0%)    0/92 (0%)    3/93 (3%)    1/94 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         3.4%         1.2%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |0/70 (0%)    0/74 (0%)    1/79 (1%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          513          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.501      (e)          P=0.130      P=0.511      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.509      (e)          P=0.127      P=0.505      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.509      (e)          P=0.126      P=0.505      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.509      (e)          P=0.129      P=0.505      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.513      (e)          P=0.136      P=0.511      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.509      (e)          P=0.127      P=0.508      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach: Epithelium                                                                                                 |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     9/99 (9%)    10/98 (10%)  8/97 (8%)    7/96 (7%)   |6/91 (7%)    11/92 (12%)  5/93 (5%)    10/94 (11%)  |
|POLY-3 ADJUSTED (b)|     9.8%         11.3%        8.7%         8.3%        |7.0%         12.9%        5.7%         11.4%        |
|TERMINAL (d)       |     8/76 (11%)   7/72 (10%)   7/84 (8%)    5/62 (8%)   |4/70 (6%)    9/74 (12%)   4/79 (5%)    7/74 (10%)   |
|FIRST INCIDENCE    |     715          618          701          568         |701          461          645          477          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.462N     P=0.445      P=0.420N     P=0.554N    |P=0.337      P=0.182      P=0.443N     P=0.247      |
|POLY 3             |     P=0.366N     P=0.463      P=0.503N     P=0.470N    |P=0.346      P=0.156      P=0.483N     P=0.234      |
|POLY 1.5           |     P=0.348N     P=0.473      P=0.510N     P=0.450N    |P=0.346      P=0.156      P=0.485N     P=0.234      |
|POLY 6             |     P=0.388N     P=0.454      P=0.491N     P=0.492N    |P=0.346      P=0.156      P=0.481N     P=0.234      |
|LOGISTIC REGRESSION|     P=0.366N     P=0.454      P=0.477N     P=0.487N    |P=0.348      P=0.157      P=0.485N     P=0.235      |
|COCH-ARM / FISHERS |     P=0.322N     P=0.491      P=0.518N     P=0.423N    |P=0.349      P=0.160      P=0.485N     P=0.237      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 60
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Forestomach: Epithelium                                                                                                 |
|     Hyperplasia                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/98 (0%)    3/97 (3%)    0/96 (0%)   |4/91 (4%)    5/92 (5%)    4/93 (4%)    5/94 (5%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         3.2%         0.0%        |4.7%         5.8%         4.6%         5.8%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |4/70 (6%)    2/74 (3%)    3/79 (4%)    5/74 (7%)    |
|FIRST INCIDENCE    |     ---          ---          556          ---         |735 (T)      496          694          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.575N     (e)          P=0.123      (e)         |P=0.507      P=0.526      P=0.585N     P=0.534      |
|POLY 3             |     P=0.580N     (e)          P=0.124      (e)         |P=0.511      P=0.505      P=0.626N     P=0.514      |
|POLY 1.5           |     P=0.572N     (e)          P=0.121      (e)         |P=0.513      P=0.504      P=0.628N     P=0.515      |
|POLY 6             |     P=0.588N     (e)          P=0.128      (e)         |P=0.509      P=0.509      P=0.624N     P=0.514      |
|LOGISTIC REGRESSION|     P=0.479N     (e)          P=0.089      (e)         |P=0.516      P=0.510      P=0.626N     P=0.534      |
|COCH-ARM / FISHERS |     P=0.562N     (e)          P=0.119      (e)         |P=0.518      P=0.507      P=0.628N     P=0.520      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular                                                                                                               |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/94 (0%)    0/93 (0%)    0/97 (0%)    0/87 (0%)   |7/86 (8%)    8/90 (9%)    3/93 (3%)    0/93 (0%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |8.6%         9.6%         3.4%         0.0%         |
|TERMINAL (d)       |     0/76 (0%)    0/72 (0%)    0/84 (0%)    0/62 (0%)   |7/70 (10%)   8/74 (11%)   3/79 (4%)    0/74 (0%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      735 (T)      735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.004N**   P=0.545      P=0.119N     P=0.008N**   |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.004N**   P=0.517      P=0.139N     P=0.007N**   |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.004N**   P=0.522      P=0.137N     P=0.007N**   |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.004N**   P=0.513      P=0.142N     P=0.007N**   |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.004N**   P=0.545      P=0.119N     (e)          |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.004N**   P=0.537      P=0.135N     P=0.005N**   |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 61
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular                                                                                                               |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/94 (0%)    3/93 (3%)    1/97 (1%)    0/87 (0%)   |1/86 (1%)    1/90 (1%)    1/93 (1%)    1/93 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         3.5%         1.1%         0.0%        |1.2%         1.2%         1.1%         1.1%         |
|TERMINAL (d)       |     0/76 (0%)    1/72 (1%)    1/84 (1%)    0/62 (0%)   |0/70 (0%)    1/74 (1%)    1/79 (1%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          629          734 (T)      ---         |725          735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.264N     P=0.115      P=0.520      (e)         |P=0.683N     P=0.753N     P=0.743N     P=0.751N     |
|POLY 3             |     P=0.263N     P=0.115      P=0.506      (e)         |P=0.671N     P=0.756N     P=0.746N     P=0.746N     |
|POLY 1.5           |     P=0.257N     P=0.117      P=0.506      (e)         |P=0.671N     P=0.754N     P=0.745N     P=0.745N     |
|POLY 6             |     P=0.269N     P=0.114      P=0.507      (e)         |P=0.672N     P=0.757N     P=0.748N     P=0.747N     |
|LOGISTIC REGRESSION|     P=0.243N     P=0.126      P=0.520      (e)         |P=0.674N     P=0.758N     P=0.749N     P=0.748N     |
|COCH-ARM / FISHERS |     P=0.249N     P=0.121      P=0.508      (e)         |P=0.672N     P=0.740N     P=0.731N     P=0.731N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular: Epithelium                                                                                                   |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     8/94 (9%)    9/93 (10%)   8/97 (8%)    8/87 (9%)   |14/86 (16%)  24/90 (27%)  20/93 (22%)  18/93 (19%)  |
|POLY-3 ADJUSTED (b)|     9.0%         10.5%        8.7%         10.1%       |16.7%        28.2%        22.1%        20.2%        |
|TERMINAL (d)       |     7/76 (9%)    7/72 (10%)   7/84 (8%)    5/62 (8%)   |8/70 (11%)   19/74 (26%)  14/79 (18%)  11/74 (15%)  |
|FIRST INCIDENCE    |     715          618          701          545         |334          461          21           467          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.455      P=0.449      P=0.526N     P=0.453     |P=0.438N     P=0.077      P=0.257      P=0.335      |
|POLY 3             |     P=0.516      P=0.473      P=0.577N     P=0.506     |P=0.388N     P=0.054      P=0.240      P=0.346      |
|POLY 1.5           |     P=0.528      P=0.480      P=0.578N     P=0.519     |P=0.385N     P=0.057      P=0.241      P=0.351      |
|POLY 6             |     P=0.504      P=0.465      P=0.572N     P=0.494     |P=0.395N     P=0.053      P=0.238      P=0.339      |
|LOGISTIC REGRESSION|     P=0.530      P=0.468      P=0.567N     P=0.537     |P=0.377N     P=0.077      P=0.260      P=0.389      |
|COCH-ARM / FISHERS |     P=0.547      P=0.491      P=0.577N     P=0.538     |P=0.375N     P=0.068      P=0.242      P=0.367      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 62
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Stomach, Glandular: Epithelium                                                                                                   |
|     Cyst Focal                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     6/94 (6%)    10/93 (11%)  10/97 (10%)  3/87 (3%)   |23/86 (27%)  19/90 (21%)  17/93 (18%)  12/93 (13%)  |
|POLY-3 ADJUSTED (b)|     6.8%         11.6%        10.9%        3.9%        |28.0%        22.3%        19.4%        13.8%        |
|TERMINAL (d)       |     6/76 (8%)    8/72 (11%)   10/84 (12%)  3/62 (5%)   |20/70 (29%)  16/74 (22%)  16/79 (20%)  12/74 (16%)  |
|FIRST INCIDENCE    |     734 (T)      560          734 (T)      734 (T)     |608          64           472          735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.116N     P=0.185      P=0.281      P=0.354N    |P=0.035N*    P=0.245N     P=0.099N     P=0.020N*    |
|POLY 3             |     P=0.099N     P=0.198      P=0.236      P=0.315N    |P=0.027N*    P=0.253N     P=0.126N     P=0.017N*    |
|POLY 1.5           |     P=0.092N     P=0.203      P=0.236      P=0.304N    |P=0.027N*    P=0.248N     P=0.123N     P=0.016N*    |
|POLY 6             |     P=0.107N     P=0.193      P=0.239      P=0.328N    |P=0.029N*    P=0.259N     P=0.133N     P=0.018N*    |
|LOGISTIC REGRESSION|     P=0.097N     P=0.199      P=0.281      P=0.354N    |P=0.026N*    P=0.238N     P=0.126N     P=0.018N*    |
|COCH-ARM / FISHERS |     P=0.081N     P=0.210      P=0.237      P=0.288N    |P=0.026N*    P=0.242N     P=0.119N     P=0.016N*    |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Testes                                                                                                                           |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/99 (3%)    5/98 (5%)    1/100 (1%)   8/96 (8%)   |                                                    |
|POLY-3 ADJUSTED (b)|     3.3%         5.7%         1.1%         9.5%        |                                                    |
|TERMINAL (d)       |     1/76 (1%)    3/72 (4%)    1/84 (1%)    5/62 (8%)   |                                                    |
|FIRST INCIDENCE    |     684          605          734 (T)      577         |                                                    |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.025 *    P=0.328      P=0.286N     P=0.066     |                                                    |
|POLY 3             |     P=0.038 *    P=0.334      P=0.304N     P=0.081     |                                                    |
|POLY 1.5           |     P=0.041 *    P=0.342      P=0.304N     P=0.087     |                                                    |
|POLY 6             |     P=0.036 *    P=0.326      P=0.303N     P=0.075     |                                                    |
|LOGISTIC REGRESSION|     P=0.046 *    P=0.353      P=0.303N     P=0.098     |                                                    |
|COCH-ARM / FISHERS |     P=0.046 *    P=0.355      P=0.307N     P=0.097     |                                                    |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 63
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Angiectasis                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/69 (0%)    0/68 (0%)    0/63 (0%)    0/68 (0%)   |1/78 (1%)    2/92 (2%)    3/84 (4%)    3/75 (4%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |1.4%         2.4%         3.9%         4.4%         |
|TERMINAL (d)       |     0/54 (0%)    0/51 (0%)    0/58 (0%)    0/41 (0%)   |1/62 (2%)    1/69 (1%)    3/70 (4%)    3/60 (5%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      734          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.298      P=0.533      P=0.351      P=0.295      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.279      P=0.547      P=0.328      P=0.286      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.279      P=0.550      P=0.330      P=0.288      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.279      P=0.542      P=0.325      P=0.284      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.298      P=0.536      P=0.351      P=0.295      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.281      P=0.562      P=0.339      P=0.295      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Atrophy                                                                                                                     |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     62/69 (90%)  50/68 (74%)  47/63 (75%)  64/68 (94%) |22/78 (28%)  20/92 (22%)  24/84 (29%)  29/75 (39%)  |
|POLY-3 ADJUSTED (b)|     90.1%        75.1%        75.5%        95.4%       |29.5%        23.1%        29.5%        40.1%        |
|TERMINAL (d)       |     48/54 (89%)  35/51 (69%)  43/58 (74%)  39/41 (95%) |14/62 (23%)  10/69 (15%)  14/70 (20%)  21/60 (35%)  |
|FIRST INCIDENCE    |     386          474          430          448         |608          496          513          467          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P<0.001 **   P=0.124N     P=0.002N**   P=0.014 *   |P=0.054      P=0.351N     P=0.550      P=0.152      |
|POLY 3             |     P=0.006 **   P=0.017N*    P=0.022N*    P=0.189     |P=0.020 *    P=0.230N     P=0.568N     P=0.118      |
|POLY 1.5           |     P=0.007 **   P=0.014N*    P=0.020N*    P=0.220     |P=0.019 *    P=0.225N     P=0.560      P=0.115      |
|POLY 6             |     P=0.005 **   P=0.018N*    P=0.022N*    P=0.160     |P=0.022 *    P=0.240N     P=0.560N     P=0.121      |
|LOGISTIC REGRESSION|     P=0.012 *    P=0.010N*    P=0.021N*    P=0.289     |P=0.019 *    P=0.209N     P=0.564      P=0.117      |
|COCH-ARM / FISHERS |     P=0.010 *    P=0.012N*    P=0.018N*    P=0.274     |P=0.018 *    P=0.213N     P=0.549      P=0.115      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 64
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Cyst Focal                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/69 (6%)    10/68 (15%)  9/63 (14%)   4/68 (6%)   |5/78 (6%)    2/92 (2%)    3/84 (4%)    9/75 (12%)   |
|POLY-3 ADJUSTED (b)|     6.3%         16.7%        15.0%        6.9%        |6.8%         2.4%         3.8%         13.0%        |
|TERMINAL (d)       |     4/54 (7%)    10/51 (20%)  9/58 (16%)   3/41 (7%)   |5/62 (8%)    2/69 (3%)    2/70 (3%)    8/60 (13%)   |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      630         |735 (T)      735 (T)      578          715          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.337N     P=0.061      P=0.149      P=0.498     |P=0.013 *    P=0.179N     P=0.301N     P=0.185      |
|POLY 3             |     P=0.218N     P=0.061      P=0.100      P=0.592     |P=0.010 *    P=0.169N     P=0.324N     P=0.169      |
|POLY 1.5           |     P=0.198N     P=0.066      P=0.095      P=0.610     |P=0.010 *    P=0.166N     P=0.323N     P=0.172      |
|POLY 6             |     P=0.243N     P=0.056      P=0.109      P=0.571     |P=0.010 *    P=0.173N     P=0.326N     P=0.167      |
|LOGISTIC REGRESSION|     P=0.256N     P=0.061      P=0.149      P=0.572     |P=0.010 *    P=0.179N     P=0.322N     P=0.169      |
|COCH-ARM / FISHERS |     P=0.175N     P=0.074      P=0.089      P=0.633     |P=0.011 *    P=0.160N     P=0.319N     P=0.179      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thymus                                                                                                                           |
|     Hyperplasia Lymphoid                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     3/69 (4%)    5/68 (7%)    9/63 (14%)   0/68 (0%)   |31/78 (40%)  19/92 (21%)  20/84 (24%)  24/75 (32%)  |
|POLY-3 ADJUSTED (b)|     4.7%         8.4%         15.0%        0.0%        |42.4%        22.7%        25.7%        34.8%        |
|TERMINAL (d)       |     2/54 (4%)    5/51 (10%)   9/58 (16%)   0/41 (0%)   |31/62 (50%)  19/69 (28%)  19/70 (27%)  23/60 (38%)  |
|FIRST INCIDENCE    |     534          734 (T)      734 (T)      ---         |735 (T)      735 (T)      645          733          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.073N     P=0.330      P=0.082      P=0.163N    |P=0.388      P=0.007N**   P=0.011N*    P=0.179N     |
|POLY 3             |     P=0.051N     P=0.322      P=0.050      P=0.140N    |P=0.336      P=0.006N**   P=0.021N*    P=0.223N     |
|POLY 1.5           |     P=0.045N*    P=0.333      P=0.047 *    P=0.133N    |P=0.334      P=0.005N**   P=0.021N*    P=0.219N     |
|POLY 6             |     P=0.061N     P=0.310      P=0.054      P=0.150N    |P=0.341      P=0.006N**   P=0.022N*    P=0.228N     |
|LOGISTIC REGRESSION|     P=0.049N*    P=0.339      P=0.048 *    P=0.103N    |P=0.370      P=0.007N**   P=0.026N*    (e)          |
|COCH-ARM / FISHERS |     P=0.039N*    P=0.351      P=0.045 *    P=0.125N    |P=0.339      P=0.005N**   P=0.022N*    P=0.204N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 65
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland                                                                                                                    |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/98 (0%)    0/98 (0%)    0/97 (0%)   |0/92 (0%)    0/99 (0%)    3/98 (3%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |0.0%         0.0%         3.3%         1.1%         |
|TERMINAL (d)       |     0/76 (0%)    0/71 (0%)    0/84 (0%)    0/61 (0%)   |0/70 (0%)    0/73 (0%)    3/79 (4%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |---          ---          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.508      (e)          P=0.145      P=0.511      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.503      (e)          P=0.129      P=0.506      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.504      (e)          P=0.130      P=0.508      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.503      (e)          P=0.127      P=0.505      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |(e)          (e)          P=0.145      P=0.511      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.509      (e)          P=0.135      P=0.516      |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland                                                                                                                    |
|     Inflammation Focal                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/98 (0%)    0/98 (0%)    0/97 (0%)   |2/92 (2%)    0/99 (0%)    3/98 (3%)    4/98 (4%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |2.3%         0.0%         3.3%         4.5%         |
|TERMINAL (d)       |     0/76 (0%)    0/71 (0%)    0/84 (0%)    0/61 (0%)   |1/70 (1%)    0/73 (0%)    3/79 (4%)    4/74 (5%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |461          ---          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.114      P=0.233N     P=0.545      P=0.362      |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.114      P=0.234N     P=0.516      P=0.349      |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.115      P=0.230N     P=0.520      P=0.354      |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.115      P=0.237N     P=0.510      P=0.345      |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.117      P=0.154N     P=0.553      P=0.388      |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.117      P=0.231N     P=0.530      P=0.372      |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 66
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: Follicle                                                                                                          |
|     Cyst                                                                                                                        |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     5/99 (5%)    13/98 (13%)  7/98 (7%)    8/97 (8%)   |21/92 (23%)  21/99 (21%)  25/98 (26%)  22/98 (22%)  |
|POLY-3 ADJUSTED (b)|     5.4%         14.9%        7.6%         9.5%        |24.2%        23.3%        27.2%        24.5%        |
|TERMINAL (d)       |     4/76 (5%)    13/71 (18%)  5/84 (6%)    6/61 (10%)  |20/70 (29%)  19/73 (26%)  21/79 (27%)  18/74 (24%)  |
|FIRST INCIDENCE    |     718          734 (T)      585          568         |701          545          513          597          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.476      P=0.029 *    P=0.440      P=0.174     |P=0.543      P=0.513N     P=0.463      P=0.560N     |
|POLY 3             |     P=0.556N     P=0.030 *    P=0.386      P=0.231     |P=0.533      P=0.518N     P=0.387      P=0.552      |
|POLY 1.5           |     P=0.533N     P=0.034 *    P=0.381      P=0.247     |P=0.535      P=0.501N     P=0.387      P=0.561      |
|POLY 6             |     P=0.559      P=0.027 *    P=0.395      P=0.214     |P=0.537      P=0.536N     P=0.384      P=0.547      |
|LOGISTIC REGRESSION|     P=0.560N     P=0.027 *    P=0.376      P=0.222     |P=0.533      P=0.550N     P=0.365      P=0.534      |
|COCH-ARM / FISHERS |     P=0.499N     P=0.039 *    P=0.377      P=0.271     |P=0.541N     P=0.462N     P=0.397      P=0.544N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Thyroid Gland: Follicular Cell                                                                                                   |
|     Hyperplasia Focal                                                                                                           |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     0/99 (0%)    0/98 (0%)    0/98 (0%)    0/97 (0%)   |3/92 (3%)    5/99 (5%)    1/98 (1%)    1/98 (1%)    |
|POLY-3 ADJUSTED (b)|     0.0%         0.0%         0.0%         0.0%        |3.5%         5.6%         1.1%         1.1%         |
|TERMINAL (d)       |     0/76 (0%)    0/71 (0%)    0/84 (0%)    0/61 (0%)   |3/70 (4%)    4/73 (6%)    1/79 (1%)    1/74 (1%)    |
|FIRST INCIDENCE    |     ---          ---          ---          ---         |735 (T)      509          735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.134N     P=0.379      P=0.265N     P=0.287N     |
|POLY 3             |     (e)          (e)          (e)          (e)         |P=0.138N     P=0.379      P=0.292N     P=0.296N     |
|POLY 1.5           |     (e)          (e)          (e)          (e)         |P=0.137N     P=0.385      P=0.290N     P=0.293N     |
|POLY 6             |     (e)          (e)          (e)          (e)         |P=0.138N     P=0.373      P=0.295N     P=0.298N     |
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.134N     P=0.400      P=0.265N     P=0.287N     |
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.133N     P=0.402      P=0.287N     P=0.287N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 67
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Urinary Bladder                                                                                                                  |
|     Infiltration Cellular Lymphocyte                                                                                            |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |     4/98 (4%)    1/95 (1%)    1/95 (1%)    0/93 (0%)   |8/79 (10%)   3/87 (3%)    4/94 (4%)    6/89 (7%)    |
|POLY-3 ADJUSTED (b)|     4.4%         1.2%         1.1%         0.0%        |10.6%        3.8%         4.6%         7.3%         |
|TERMINAL (d)       |     4/76 (5%)    1/72 (1%)    1/84 (1%)    0/61 (0%)   |8/67 (12%)   3/71 (4%)    4/78 (5%)    6/71 (9%)    |
|FIRST INCIDENCE    |     734 (T)      734 (T)      734 (T)      ---         |735 (T)      735 (T)      735 (T)      735 (T)      |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |     P=0.144N     P=0.199N     P=0.154N     P=0.096N    |P=0.487      P=0.088N     P=0.119N     P=0.346N     |
|POLY 3             |     P=0.127N     P=0.202N     P=0.187N     P=0.079N    |P=0.521      P=0.087N     P=0.118N     P=0.323N     |
|POLY 1.5           |     P=0.124N     P=0.198N     P=0.190N     P=0.076N    |P=0.519      P=0.085N     P=0.116N     P=0.319N     |
|POLY 6             |     P=0.131N     P=0.205N     P=0.183N     P=0.084N    |P=0.523      P=0.090N     P=0.123N     P=0.327N     |
|LOGISTIC REGRESSION|     P=0.144N     P=0.199N     P=0.154N     (e)         |P=0.487      P=0.088N     P=0.119N     P=0.346N     |
|COCH-ARM / FISHERS |     P=0.121N     P=0.194N     P=0.194N     P=0.067N    |P=0.520      P=0.078N     P=0.113N     P=0.304N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Angiectasis                                                                                                                 |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |1/92 (1%)    3/97 (3%)    2/98 (2%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|                                                        |1.2%         3.4%         2.2%         0.0%         |
|TERMINAL (d)       |                                                        |1/70 (1%)    1/74 (1%)    2/79 (3%)    0/74 (0%)    |
|FIRST INCIDENCE    |                                                        |735 (T)      705          735 (T)      ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.158N     P=0.321      P=0.542      P=0.489N     |
|POLY 3             |                                                        |P=0.157N     P=0.317      P=0.517      P=0.491N     |
|POLY 1.5           |                                                        |P=0.155N     P=0.319      P=0.519      P=0.490N     |
|POLY 6             |                                                        |P=0.158N     P=0.314      P=0.514      P=0.493N     |
|LOGISTIC REGRESSION|                                                        |P=0.154N     P=0.316      P=0.542      (e)          |
|COCH-ARM / FISHERS |                                                        |P=0.151N     P=0.331      P=0.524      P=0.482N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 68
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Hydrometra                                                                                                                  |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |48/92 (52%)  33/97 (34%)  40/98 (41%)  41/99 (41%)  |
|POLY-3 ADJUSTED (b)|                                                        |54.5%        36.5%        42.5%        43.3%        |
|TERMINAL (d)       |                                                        |38/70 (54%)  25/74 (34%)  30/79 (38%)  26/74 (35%)  |
|FIRST INCIDENCE    |                                                        |542          496          472          474          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.528      P=0.016N*    P=0.070N     P=0.156N     |
|POLY 3             |                                                        |P=0.423N     P=0.011N*    P=0.068N     P=0.084N     |
|POLY 1.5           |                                                        |P=0.446N     P=0.010N*    P=0.072N     P=0.090N     |
|POLY 6             |                                                        |P=0.395N     P=0.011N*    P=0.067N     P=0.077N     |
|LOGISTIC REGRESSION|                                                        |P=0.476N     P=0.011N*    P=0.081N     P=0.098N     |
|COCH-ARM / FISHERS |                                                        |P=0.461N     P=0.009N**   P=0.077N     P=0.089N     |
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus                                                                                                                           |
|     Inflammation                                                                                                                |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |2/92 (2%)    0/97 (0%)    0/98 (0%)    0/99 (0%)    |
|POLY-3 ADJUSTED (b)|                                                        |2.3%         0.0%         0.0%         0.0%         |
|TERMINAL (d)       |                                                        |2/70 (3%)    0/74 (0%)    0/79 (0%)    0/74 (0%)    |
|FIRST INCIDENCE    |                                                        |735 (T)      ---          ---          ---          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.361N     P=0.227N     P=0.213N     P=0.227N     |
|POLY 3             |                                                        |P=0.352N     P=0.233N     P=0.228N     P=0.229N     |
|POLY 1.5           |                                                        |P=0.354N     P=0.231N     P=0.227N     P=0.227N     |
|POLY 6             |                                                        |P=0.351N     P=0.235N     P=0.230N     P=0.230N     |
|LOGISTIC REGRESSION|                                                        |P=0.361N     (e)          (e)          (e)          |
|COCH-ARM / FISHERS |                                                        |P=0.356N     P=0.236N     P=0.233N     P=0.231N     |
|=================================================================================================================================|
       Date:  01/06/98                           EXPERIMENT: 89029 TEST: 06                                            Page 69
                     Statistical Analysis of Non-neoplastic Lesions in       Mice(B6C3F1)  -                MAGNETIC FIELDS (EMF)
                                         Terminal Sacrifice at 104 weeks 
|=================================================================================================================================|
|                   |                                                        |                                                    |
|                   |                              Males                     |                       Females                      |
|Dose               |     SHAM         0.02         2 GAUSS      10 GAUSS    |SHAM         0.02         2 GAUSS      10 GAUSS     |
|                   |     CONTROL      GAUSS                                 |CONTROL      GAUSS                                  |
|=================================================================================================================================|
|                                                                                                                                 |
|Uterus: Endometrium                                                                                                              |
|     Hyperplasia Cystic                                                                                                          |
|                                                                                                                                 |
|                                                                                                                                 |
|---------------------------------------------------------------------------------------------------------------------------------|
|TUMOR RATES        |                                                        |                                                    |
|-----------        |                                                        |                                                    |
|OVERALL (a)        |                                                        |54/92 (59%)  71/97 (73%)  67/98 (68%)  66/99 (67%)  |
|POLY-3 ADJUSTED (b)|                                                        |60.4%        76.3%        72.7%        72.3%        |
|TERMINAL (d)       |                                                        |43/70 (61%)  59/74 (80%)  61/79 (77%)  57/74 (77%)  |
|FIRST INCIDENCE    |                                                        |334          387          578          576          |
|-------------------|                                                        |                                                    |
|STATISTICAL TESTS  |                                                        |                                                    |
|-------------------|                                                        |                                                    |
|LIFE TABLE         |                                                        |P=0.391      P=0.036 *    P=0.207      P=0.126      |
|POLY 3             |                                                        |P=0.318      P=0.014 *    P=0.050      P=0.059      |
|POLY 1.5           |                                                        |P=0.377      P=0.016 *    P=0.065      P=0.081      |
|POLY 6             |                                                        |P=0.267      P=0.011 *    P=0.035 *    P=0.042 *    |
|LOGISTIC REGRESSION|                                                        |P=0.462      P=0.020 *    P=0.090      P=0.106      |
|COCH-ARM / FISHERS |                                                        |P=0.527      P=0.025 *    P=0.108      P=0.161      |
|=================================================================================================================================|

(a)  Number of tumor-bearing animals /  number of animals examined at site.
(b)  Poly-3 adjusted lifetime tumor incidence.
(d)  Observed incidence at terminal kill.
(f)  Beneath the control incidence are the P-values associated with the trend 
test.  Beneath the dosed group incidence are the P-values corresponding to 
pairwise comparisons between the controls and that dosed group.  The life
table analysis regards tumors in animals dying prior to  terminal kill as
 being (directly or indirectly) the cause of death.
Logistic regression is an alternative
 method for analyzing the incidence of non-fatal tumors. The Cochran-Armitage
and Fishers exact tests compare directly the overall incidence rates
For all tests a negative trend is indicated by N
(e)  Value of Statistic cannot be computed.
(I)  Interim sacrifice
(T)  Terminal sacrifice
#   Tumor rates based on number of animals necropsied.
*   To the right of any statistical result, indicates significance at (P<=0.05).
**  To the right of any statistical result, indicates significance at (P<=0.01).