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TDMS Study 99039-02 Pathology Tables

NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10     
LAB: BIORELIANCE                                     TRANSGENIC MODEL EVALUATION II                            DATE: 02/21/03       
EXPERIMENT: 99039 TEST: 02                                                                                     TIME: 10:32:11       
TEST TYPE:  26-39 WEEKS                         CAGES FROM 0000 TO LAST CAGE                                   PAGE:       1        
CONT: NO1-ES-75408                              ROUTE: DOSED FEED                                              NTP C#: C99039       
PATHOLOGIST: LANNING, LYNDA                                                                                    CAS: 55589-62-3      
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                                                        FINAL#3/P53 +/- MICE                                                        
                                                                                                                                    
                                                                                                                                    
               REASONS FOR REMOVAL:    ALL                                                                                          
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
               REMOVAL DATE RANGE:     ALL                                                                                          
                                                                                                                                    
               TREATMENT GROUPS:       INCLUDE ALL                                                                                  
                                                                                                                                   
NTP                                    STATISTICAL ANALYSIS OF NON-NEOPLASTIC LESIONS                          REPORT: PEIRPT10     
LAB: BIORELIANCE                                     TRANSGENIC MODEL EVALUATION II                            DATE: 02/21/03       
EXPERIMENT: 99039 TEST: 02                                                                                     TIME: 10:32:11       
TEST TYPE:  26-39 WEEKS                         CAGES FROM 0000 TO LAST CAGE                                                        
CONT: NO1-ES-75408                              ROUTE: DOSED FEED                                              NTP C#: C99039       
PATHOLOGIST: LANNING, LYNDA                                                                                    CAS: 55589-62-3      
                                                                                                                                    
                                                                                                                                    
SUMMARY OF STATISTICALLY SIGNIFICANT (P<=.05) RESULTS                                                                               
IN THE ANALYSIS OF             TRANSGENIC MODEL EVALUATION II                                                                       
===============================================================                                                                     
Female Mice                                                                                                                         
------------                                                                                                                        
Organ                                  Morphology                                                                                   
-----                                  ----------                                                                                   
Thymus                                 Atrophy Focal                                                                                
===============================================================                                                                     
                                                                                                                                   
       Date:  02/21/03                           EXPERIMENT: 99039 TEST: 02                                            Page 1       
Statistical Analysis of Non-neoplastic Lesions in        Mice(P53 Heterozygous Transgenic)  -              TRANSGENIC MODEL EVALUATI
ON II                                                                                                                               
                                         Terminal Sacrifice at 40 weeks                                                             
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Cortex                                                                                                                   | 
|     Hyperplasia Focal                                                                                                           | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/15 (0%)    0/0 (0%)     0/0 (0%)     0/15 (0%)   |2/15 (13%)   0/0 (0%)     0/0 (0%)     2/14 (14%)   | 
|POLY-3 RATE (b)    |     0/14.33      0/0.00       0/0.00       0/14.55     |2/14.22      0/0.00       0/0.00       2/14.00      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         0.0%        |14.1%        0.0%         0.0%         14.3%        | 
|TERMINAL (d)       |     0/14 (0%)    0/0 (0%)     0/0 (0%)     0/14 (0%)   |2/14 (14%)   0/0 (0%)     0/0 (0%)     2/14 (14%)   | 
|FIRST INCIDENCE    |     ---          ---          ---          ---         |274 (T)      ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.638      P=1.000      P=1.000      P=0.702      | 
|POLY 3             |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          P=0.693      | 
|POLY 1.5           |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          P=0.687      | 
|POLY 6             |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          P=0.698      | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.638      (e)          (e)          P=0.702      | 
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.612      P=1.000      P=1.000      P=0.674      | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Adrenal Cortex: Subcapsular                                                                                                      | 
|     Hyperplasia Focal                                                                                                           | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/15 (7%)    0/0 (0%)     0/0 (0%)     1/15 (7%)   |13/15 (87%)  0/0 (0%)     0/0 (0%)     12/14 (86%)  | 
|POLY-3 RATE (b)    |     1/14.33      0/0.00       0/0.00       1/14.55     |13/15.00     0/0.00       0/0.00       12/14.00     | 
|POLY-3 PERCENT (g) |     7.0%         0.0%         0.0%         6.9%        |86.7%        0.0%         0.0%         85.7%        | 
|TERMINAL (d)       |     1/14 (7%)    0/0 (0%)     0/0 (0%)     1/14 (7%)   |12/14 (86%)  0/0 (0%)     0/0 (0%)     12/14 (86%)  | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          274 (T)     |166          ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.685      P=1.000N     P=1.000N     P=0.764     |P=0.493N     P=0.514N     P=0.514N     P=0.506N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.757N    |(e)          (e)          (e)          P=0.673N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.758N    |(e)          (e)          (e)          P=0.673N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.758N    |(e)          (e)          (e)          P=0.673N     | 
|LOGISTIC REGRESSION|     P=0.685      (e)          (e)          P=0.764     |(e)          (e)          (e)          P=0.506N     | 
|COCH-ARM / FISHERS |     P=0.687      P=1.000      P=1.000      P=0.759N    |P=0.612N     P=1.000      P=1.000      P=0.674N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  02/21/03                           EXPERIMENT: 99039 TEST: 02                                            Page 2       
Statistical Analysis of Non-neoplastic Lesions in       Mice(P53 Heterozygous Transgenic)  -              TRANSGENIC MODEL EVALUATIO
N II                                                                                                                                
                                         Terminal Sacrifice at 40 weeks                                                             
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Harderian Gland                                                                                                                  | 
|     Inflammation Chronic                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     4/15 (27%)   0/0 (0%)     0/0 (0%)     2/15 (13%)  |1/15 (7%)    0/0 (0%)     0/0 (0%)     0/14 (0%)    | 
|POLY-3 RATE (b)    |     4/14.33      0/0.00       0/0.00       2/15.00     |1/14.22      0/0.00       0/0.00       0/14.00      | 
|POLY-3 PERCENT (g) |     27.9%        0.0%         0.0%         13.3%       |7.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     4/14 (29%)   0/0 (0%)     0/0 (0%)     1/14 (7%)   |1/14 (7%)    0/0 (0%)     0/0 (0%)     0/14 (0%)    | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          225         |274 (T)      ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.315N     P=1.000N     P=1.000N     P=0.326N    |P=0.369N     P=1.000      P=1.000      P=0.500N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.305N    |(e)          (e)          (e)          P=0.503N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.313N    |(e)          (e)          (e)          P=0.507N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.297N    |(e)          (e)          (e)          P=0.501N     | 
|LOGISTIC REGRESSION|     P=0.285N     (e)          (e)          P=0.339N    |P=0.369N     (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.271N     P=1.000      P=1.000      P=0.326N    |P=0.380N     P=1.000      P=1.000      P=0.517N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Kidney: Renal Tubule                                                                                                             | 
|     Dilatation Focal                                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/15 (7%)    0/0 (0%)     0/0 (0%)     2/15 (13%)  |6/15 (40%)   0/0 (0%)     0/0 (0%)     2/14 (14%)   | 
|POLY-3 RATE (b)    |     1/14.33      0/0.00       0/0.00       2/14.55     |6/15.00      0/0.00       0/0.00       2/14.00      | 
|POLY-3 PERCENT (g) |     7.0%         0.0%         0.0%         13.7%       |40.0%        0.0%         0.0%         14.3%        | 
|TERMINAL (d)       |     1/14 (7%)    0/0 (0%)     0/0 (0%)     2/14 (14%)  |5/14 (36%)   0/0 (0%)     0/0 (0%)     2/14 (14%)   | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          274 (T)     |166          ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.421      P=1.000N     P=1.000N     P=0.500     |P=0.108N     P=0.514N     P=0.514N     P=0.121N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.505     |(e)          (e)          (e)          P=0.127N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.504     |(e)          (e)          (e)          P=0.127N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.505     |(e)          (e)          (e)          P=0.127N     | 
|LOGISTIC REGRESSION|     P=0.421      (e)          (e)          P=0.500     |(e)          (e)          (e)          P=0.121N     | 
|COCH-ARM / FISHERS |     P=0.420      P=1.000      P=1.000      P=0.500     |P=0.102N     P=1.000      P=1.000      P=0.129N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  02/21/03                           EXPERIMENT: 99039 TEST: 02                                            Page 3       
Statistical Analysis of Non-neoplastic Lesions in       Mice(P53 Heterozygous Transgenic)  -              TRANSGENIC MODEL EVALUATIO
N II                                                                                                                                
                                         Terminal Sacrifice at 40 weeks                                                             
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Infiltration Cellular Focal Lymphocyte                                                                                      | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/15 (0%)    0/0 (0%)     0/0 (0%)     0/15 (0%)   |2/15 (13%)   0/0 (0%)     0/0 (0%)     1/14 (7%)    | 
|POLY-3 RATE (b)    |     0/14.33      0/0.00       0/0.00       0/14.55     |2/14.22      0/0.00       0/0.00       1/14.00      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         0.0%        |14.1%        0.0%         0.0%         7.1%         | 
|TERMINAL (d)       |     0/14 (0%)    0/0 (0%)     0/0 (0%)     0/14 (0%)   |2/14 (14%)   0/0 (0%)     0/0 (0%)     1/14 (7%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          ---         |274 (T)      ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     (e)          (e)          (e)          (e)         |P=0.421N     P=1.000      P=1.000      P=0.500N     | 
|POLY 3             |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          P=0.506N     | 
|POLY 1.5           |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          P=0.512N     | 
|POLY 6             |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          P=0.501N     | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          (e)         |P=0.421N     (e)          (e)          P=0.500N     | 
|COCH-ARM / FISHERS |     (e)          (e)          (e)          (e)         |P=0.444N     P=1.000      P=1.000      P=0.527N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Liver                                                                                                                            | 
|     Inflammation Chronic                                                                                                        | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/15 (7%)    0/0 (0%)     0/0 (0%)     5/15 (33%)  |6/15 (40%)   0/0 (0%)     0/0 (0%)     7/14 (50%)   | 
|POLY-3 RATE (b)    |     1/14.33      0/0.00       0/0.00       5/14.55     |6/14.22      0/0.00       0/0.00       7/14.00      | 
|POLY-3 PERCENT (g) |     7.0%         0.0%         0.0%         34.4%       |42.2%        0.0%         0.0%         50.0%        | 
|TERMINAL (d)       |     1/14 (7%)    0/0 (0%)     0/0 (0%)     5/14 (36%)  |6/14 (43%)   0/0 (0%)     0/0 (0%)     7/14 (50%)   | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          274 (T)     |274 (T)      ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.066      P=1.000N     P=1.000N     P=0.087     |P=0.451      P=1.000      P=1.000      P=0.500      | 
|POLY 3             |     (e)          (e)          (e)          P=0.082     |(e)          (e)          (e)          P=0.485      | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.082     |(e)          (e)          (e)          P=0.469      | 
|POLY 6             |     (e)          (e)          (e)          P=0.081     |(e)          (e)          (e)          P=0.497      | 
|LOGISTIC REGRESSION|     P=0.066      (e)          (e)          P=0.087     |P=0.451      (e)          (e)          P=0.500      | 
|COCH-ARM / FISHERS |     P=0.064      P=1.000      P=1.000      P=0.084     |P=0.385      P=1.000      P=1.000      P=0.434      | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  02/21/03                           EXPERIMENT: 99039 TEST: 02                                            Page 4       
Statistical Analysis of Non-neoplastic Lesions in       Mice(P53 Heterozygous Transgenic)  -              TRANSGENIC MODEL EVALUATIO
N II                                                                                                                                
                                         Terminal Sacrifice at 40 weeks                                                             
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Lymph Node, Mandibular                                                                                                           | 
|     Hyperplasia                                                                                                                 | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/15 (0%)    0/0 (0%)     0/0 (0%)     2/15 (13%)  |1/15 (7%)    0/0 (0%)     0/0 (0%)     0/14 (0%)    | 
|POLY-3 RATE (b)    |     0/14.33      0/0.00       0/0.00       2/15.00     |1/14.22      0/0.00       0/0.00       0/14.00      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         13.3%       |7.0%         0.0%         0.0%         0.0%         | 
|TERMINAL (d)       |     0/14 (0%)    0/0 (0%)     0/0 (0%)     1/14 (7%)   |1/14 (7%)    0/0 (0%)     0/0 (0%)     0/14 (0%)    | 
|FIRST INCIDENCE    |     ---          ---          ---          225         |274 (T)      ---          ---          ---          | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.103      (e)          (e)          P=0.247     |P=0.369N     P=1.000N     P=1.000N     P=0.500N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.242     |(e)          (e)          (e)          P=0.503N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.238     |(e)          (e)          (e)          P=0.507N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.246     |(e)          (e)          (e)          P=0.501N     | 
|LOGISTIC REGRESSION|     P=0.105      (e)          (e)          P=0.161     |P=0.369N     (e)          (e)          (e)          | 
|COCH-ARM / FISHERS |     P=0.165      (e)          (e)          P=0.241     |P=0.380N     P=1.000      P=1.000      P=0.517N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Salivary Glands                                                                                                                  | 
|     Infiltration Cellular Focal Lymphocyte                                                                                      | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     10/15 (67%)  0/0 (0%)     0/0 (0%)     8/15 (53%)  |10/15 (67%)  0/0 (0%)     0/0 (0%)     9/14 (64%)   | 
|POLY-3 RATE (b)    |     10/14.33     0/0.00       0/0.00       8/15.00     |10/14.22     0/0.00       0/0.00       9/14.00      | 
|POLY-3 PERCENT (g) |     69.8%        0.0%         0.0%         53.3%       |70.3%        0.0%         0.0%         64.3%        | 
|TERMINAL (d)       |     10/14 (71%)  0/0 (0%)     0/0 (0%)     7/14 (50%)  |10/14 (71%)  0/0 (0%)     0/0 (0%)     9/14 (64%)   | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          225         |274 (T)      ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.349N     P=1.000N     P=1.000N     P=0.357N    |P=0.447N     P=1.000      P=1.000N     P=0.500N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.299N    |(e)          (e)          (e)          P=0.523N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.321N    |(e)          (e)          (e)          P=0.549N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.280N    |(e)          (e)          (e)          P=0.505N     | 
|LOGISTIC REGRESSION|     P=0.293N     (e)          (e)          P=0.337N    |P=0.447N     (e)          (e)          P=0.500N     | 
|COCH-ARM / FISHERS |     P=0.310N     P=1.000      P=1.000      P=0.355N    |P=0.550N     P=1.000      P=1.000      P=0.600N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  02/21/03                           EXPERIMENT: 99039 TEST: 02                                            Page 5       
Statistical Analysis of Non-neoplastic Lesions in       Mice(P53 Heterozygous Transgenic)  -              TRANSGENIC MODEL EVALUATIO
N II                                                                                                                                
                                         Terminal Sacrifice at 40 weeks                                                             
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Spleen                                                                                                                           | 
|     Hematopoietic Cell Proliferation                                                                                            | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     1/15 (7%)    0/0 (0%)     0/0 (0%)     1/15 (7%)   |2/15 (13%)   0/0 (0%)     0/0 (0%)     1/14 (7%)    | 
|POLY-3 RATE (b)    |     1/14.33      0/0.00       0/0.00       1/15.00     |2/15.00      0/0.00       0/0.00       1/14.00      | 
|POLY-3 PERCENT (g) |     7.0%         0.0%         0.0%         6.7%        |13.3%        0.0%         0.0%         7.1%         | 
|TERMINAL (d)       |     1/14 (7%)    0/0 (0%)     0/0 (0%)     0/14 (0%)   |1/14 (7%)    0/0 (0%)     0/0 (0%)     1/14 (7%)    | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          225         |166          ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.622      P=1.000N     P=1.000N     P=0.753N    |P=0.491N     P=0.514N     P=0.514N     P=0.508N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.750N    |(e)          (e)          (e)          P=0.524N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.754N    |(e)          (e)          (e)          P=0.524N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.747N    |(e)          (e)          (e)          P=0.524N     | 
|LOGISTIC REGRESSION|     P=0.628      (e)          (e)          P=0.722     |(e)          (e)          (e)          P=0.508N     | 
|COCH-ARM / FISHERS |     P=0.687      P=1.000      P=1.000      P=0.759N    |P=0.444N     P=1.000      P=1.000      P=0.527N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thymus                                                                                                                           | 
|     Atrophy                                                                                                                     | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     2/15 (13%)   0/0 (0%)     0/0 (0%)     2/14 (14%)  |6/15 (40%)   0/0 (0%)     0/0 (0%)     2/14 (14%)   | 
|POLY-3 RATE (b)    |     2/14.33      0/0.00       0/0.00       2/13.55     |6/14.22      0/0.00       0/0.00       2/13.70      | 
|POLY-3 PERCENT (g) |     14.0%        0.0%         0.0%         14.8%       |42.2%        0.0%         0.0%         14.6%        | 
|TERMINAL (d)       |     2/14 (14%)   0/0 (0%)     0/0 (0%)     2/13 (15%)  |6/14 (43%)   0/0 (0%)     0/0 (0%)     2/13 (15%)   | 
|FIRST INCIDENCE    |     274 (T)      ---          ---          274 (T)     |274 (T)      ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.609      P=1.000N     P=1.000N     P=0.675     |P=0.104N     P=1.000      P=1.000N     P=0.132N     | 
|POLY 3             |     (e)          (e)          (e)          P=0.679     |(e)          (e)          (e)          P=0.113N     | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.677     |(e)          (e)          (e)          P=0.116N     | 
|POLY 6             |     (e)          (e)          (e)          P=0.678     |(e)          (e)          (e)          P=0.114N     | 
|LOGISTIC REGRESSION|     P=0.609      (e)          (e)          P=0.675     |P=0.104N     (e)          (e)          P=0.132N     | 
|COCH-ARM / FISHERS |     P=0.612      P=1.000      P=1.000      P=0.674     |P=0.102N     P=1.000      P=1.000      P=0.129N     | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
                                                                                                                                   
       Date:  02/21/03                           EXPERIMENT: 99039 TEST: 02                                            Page 6       
Statistical Analysis of Non-neoplastic Lesions in       Mice(P53 Heterozygous Transgenic)  -              TRANSGENIC MODEL EVALUATIO
N II                                                                                                                                
                                         Terminal Sacrifice at 40 weeks                                                             
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Thymus                                                                                                                           | 
|     Atrophy Focal                                                                                                               | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |     0/15 (0%)    0/0 (0%)     0/0 (0%)     1/14 (7%)   |0/15 (0%)    0/0 (0%)     0/0 (0%)     4/14 (29%)   | 
|POLY-3 RATE (b)    |     0/14.33      0/0.00       0/0.00       1/13.55     |0/14.22      0/0.00       0/0.00       4/13.70      | 
|POLY-3 PERCENT (g) |     0.0%         0.0%         0.0%         7.4%        |0.0%         0.0%         0.0%         29.2%        | 
|TERMINAL (d)       |     0/14 (0%)    0/0 (0%)     0/0 (0%)     1/13 (8%)   |0/14 (0%)    0/0 (0%)     0/0 (0%)     4/13 (31%)   | 
|FIRST INCIDENCE    |     ---          ---          ---          274 (T)     |---          ---          ---          274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |     P=0.355      (e)          (e)          P=0.485     |P=0.032 *    (e)          (e)          P=0.047 *    | 
|POLY 3             |     (e)          (e)          (e)          P=0.489     |(e)          (e)          (e)          P=0.039 *    | 
|POLY 1.5           |     (e)          (e)          (e)          P=0.488     |(e)          (e)          (e)          P=0.039 *    | 
|POLY 6             |     (e)          (e)          (e)          P=0.488     |(e)          (e)          (e)          P=0.039 *    | 
|LOGISTIC REGRESSION|     (e)          (e)          (e)          P=0.485     |(e)          (e)          (e)          P=0.047 *    | 
|COCH-ARM / FISHERS |     P=0.354      (e)          (e)          P=0.483     |P=0.031 *    (e)          (e)          P=0.042 *    | 
|ORDER RESTRICTED   |     (e)          (e)          (e)          (e)         |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
|                   |                                                        |                                                    | 
|                   |                              Males                     |                       Females                      | 
|Dose               |     VEHICLE      0.3 %        1.0 %        3.0 %       |VEHICLE      0.3 %        1.0 %        3.0 %        | 
|                   |     CONTROL                                            |CONTROL                                             | 
|=================================================================================================================================| 
|                                                                                                                                 | 
|Uterus: Endometrium                                                                                                              | 
|     Hyperplasia Cystic                                                                                                          | 
|                                                                                                                                 | 
|                                                                                                                                 | 
|---------------------------------------------------------------------------------------------------------------------------------| 
|LESION RATES       |                                                        |                                                    | 
|-----------        |                                                        |                                                    | 
|OVERALL (a)        |                                                        |13/15 (87%)  0/0 (0%)     1/1 (100%)   13/14 (93%)  | 
|POLY-3 RATE (b)    |                                                        |13/14.22     0/0.00       1/1.00       13/14.00     | 
|POLY-3 PERCENT (g) |                                                        |91.4%        0.0%         100.0%       92.9%        | 
|TERMINAL (d)       |                                                        |13/14 (93%)  0/0 (0%)     1/1 (100%)   13/14 (93%)  | 
|FIRST INCIDENCE    |                                                        |274 (T)      ---          274 (T)      274 (T)      | 
|-------------------|                                                        |                                                    | 
|STATISTICAL TESTS  |                                                        |                                                    | 
|-------------------|                                                        |                                                    | 
|LIFE TABLE         |                                                        |P=0.681N     P=1.000      P=0.959      P=0.764      | 
|POLY 3             |                                                        |(e)          (e)          P=0.950      P=0.711      | 
|POLY 1.5           |                                                        |(e)          (e)          P=0.931      P=0.650      | 
|POLY 6             |                                                        |(e)          (e)          P=0.958      P=0.750      | 
|LOGISTIC REGRESSION|                                                        |P=0.681N     (e)          P=0.959      P=0.764      | 
|COCH-ARM / FISHERS |                                                        |P=0.451      P=1.000      P=0.875      P=0.527      | 
|ORDER RESTRICTED   |                                                        |(e)          (e)          (e)          (e)          | 
|=================================================================================================================================| 
(a)  Number of tumor-bearing animals /  number of animals examined at site.                                                         
                                                                                                                                   
(b)  Number of tumor-bearing animals / Poly-3 number                                                                                
(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.                                                                                         
(g)  Poly-3 adjusted lifetime tumor incidence.                                                                                      
(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).