National Toxicology Program

National Toxicology Program
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TDMS Study 97013-13 Pathology Tables

NTP                                         STATISTICAL ANALYSIS OF SURVIVAL DATA                              REPORT: PEIRPT11     
LAB: Battelle Columbus                       WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                    DATE: 01/27/05       
EXPERIMENT: 97013 TEST: 13                                                                                     TIME: 10:22:22       
TEST TYPE:  SUBCHRON 26-WEEK                    CAGES FROM 0000 TO LAST CAGE                                   PAGE:       1        
CONT: N01-ES-65406                              ROUTE: DOSED WATER                                             NTP C#: 97013C       
PATHOLOGIST: MISSING                                                                                           CAS: 79-43-6         
------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                    
                                                         FINAL #1 TGAC MICE                                                         
                                                                                                                                    
                                                                                                                                    
               REASONS FOR REMOVAL:    25019 Moribund Sacrifice                                                                     
                                       25020 Natural Death                                                                          
                                       25021 Terminal Sacrifice                                                                     
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
                                                                                                                                    
               REMOVAL DATE RANGE:     ALL                                                                                          
                                                                                                                                    
               TREATMENT GROUPS:       INCLUDE 001    0 MG/L                                                                        
                                       INCLUDE 002    0 MG/L                                                                        
                                       INCLUDE 003    500 MG/L                                                                      
                                       INCLUDE 004    500 MG/L                                                                      
                                       INCLUDE 005    1000MG/L                                                                      
                                       INCLUDE 006    1000MG/L                                                                      
                                       INCLUDE 007    2000MG/L                                                                      
                                       INCLUDE 008    2000MG/L                                                                      
                                                                                                                                   
NTP                                         STATISTICAL ANALYSIS OF SURVIVAL DATA                              REPORT: PEIRPT11     
LAB: Battelle Columbus                       WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                    DATE: 01/27/05       
EXPERIMENT: 97013 TEST: 13                                                                                     TIME: 10:22:22       
TEST TYPE:  SUBCHRON 26-WEEK                    CAGES FROM 0000 TO LAST CAGE                                                        
CONT: N01-ES-65406                              ROUTE: DOSED WATER                                             NTP C#: 97013C       
PATHOLOGIST: MISSING                                                                                           CAS: 79-43-6         
                                                                                                                                   
                  WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                                                    
                       STATISTICAL ANALYSIS OF SURVIVAL DATA                                                                        
                                     MALE MICE                                                                                      
                       FIRST TERMINAL SACRIFICE AT 176 DAYS                                                                         
                                                                                                                                    
                          INDIVIDUAL SURVIVAL TIMES (DAYS)                                                                          
 ==================================================================================                                                 
 |                                DOSE = 0 MG/L                                   |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 1      CENSORED DEATHS 0    TERMINAL 14        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      64                                                                        |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |                                DOSE = 500 MG/L                                 |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 2      CENSORED DEATHS 0    TERMINAL 13        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      57    71                                                                  |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |                                DOSE = 1000MG/L                                 |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 4      CENSORED DEATHS 0    TERMINAL 11        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      141   141   141   141                                                     |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 ==================================================================================                                                 
                                                                                                                                   
                  WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                                                    
                       STATISTICAL ANALYSIS OF SURVIVAL DATA                                                                        
                                     MALE MICE                                                                                      
                       FIRST TERMINAL SACRIFICE AT 176 DAYS                                                                         
                                                                                                                                    
                          INDIVIDUAL SURVIVAL TIMES (DAYS)                                                                          
 ==================================================================================                                                 
 |                                DOSE = 2000MG/L                                 |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 1      CENSORED DEATHS 0    TERMINAL 14        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      127                                                                       |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 ==================================================================================                                                 
                                                                                                                                   
                  WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                                                    
                       STATISTICAL ANALYSIS OF SURVIVAL DATA                                                                        
                                     MALE MICE                                                                                      
                       FIRST TERMINAL SACRIFICE AT 176 DAYS                                                                         
 ==================================================================================                                                 
 |               KAPLAN-MEIER SURVIVAL PROBABILITY ESTIMATES (%)                  |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |    DOSE                               TIME (DAYS)                              |                                                 
 |                 18    36    54    72    90   108   126   144   162   176 (A)   |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |           |                                                                    |                                                 
 |0 MG/L     |   100.0 100.0 100.0  93.3  93.3  93.3  93.3  93.3  93.3  93.3      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 |500 MG/L   |   100.0 100.0 100.0  93.3  86.7  86.7  86.7  86.7  86.7  86.7      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 |1000MG/L   |   100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0  73.3  73.3      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 |2000MG/L   |   100.0 100.0 100.0 100.0 100.0 100.0 100.0  93.3  93.3  93.3      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 ==================================================================================                                                 
 ==================================================================================                                                 
 |                           SURVIVAL SUMMARY STATISTICS                          |                                                 
 |                                                                                |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |                                                  DOSE                          |                                                 
 |                                                                                |                                                 
 |                                0 MG/L       500 MG/L     1000MG/L     2000MG/L |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |SURVIVAL AT END OF STUDY|       93.3%        86.7%        73.3%        93.3%    |                                                 
 |(KAPLAN-MEIER)          |                                                       |                                                 
 |                        |                                                       |                                                 
 |SIGNIFICANCE (B)        |       P=1.000N     P=0.984      P=0.384      P=1.000N |                                                 
 |(LIFE TABLE)            |                                                       |                                                 
 |                        |                                                       |                                                 
 |MEAN DAY OF             |        64.0         64.0        141.0        127.0    |                                                 
 |NATURAL DEATHS (C)      |       (  . )       ( 7.0)       ( 0.0)       (  . )   |                                                 
 |(STANDARD ERROR)        |                                                       |                                                 
 |                        |                                                       |                                                 
 |MEAN LIFE SPAN (D)      |       168.5        161.1        166.7        172.7    |                                                 
 |(STANDARD ERROR)        |       ( 7.5)       (10.2)       ( 4.1)       ( 3.3)   |                                                 
 |                        |                                                       |                                                 
 ==================================================================================                                                 
                                                                                                                                    
       (A)  FIRST TERMINAL SACRIFICE                                                                                                
       (B)  THE FIRST ENTRY IS THE TREND TEST (TARONE, 1975) RESULT.                                                                
            SUBSEQUENT ENTRIES ARE THE RESULTS OF PAIRWISE TESTS                                                                    
            (COX,1972).  NEGATIVE TRENDS ARE INDICATED BY "N".                                                                      
       (C)  MEAN OF ALL UNCENSORED DEATHS PRIOR TO TERMINAL SACRIFICE                                                               
       (D)  MEAN OF ALL DEATHS (UNCENSORED, CENSORED, TERMINAL SACRIFICE)                                                           
                                                                                                                                   
                  WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                                                    
                       STATISTICAL ANALYSIS OF SURVIVAL DATA                                                                        
                                    FEMALE MICE                                                                                     
                       FIRST TERMINAL SACRIFICE AT 177 DAYS                                                                         
                                                                                                                                    
                          INDIVIDUAL SURVIVAL TIMES (DAYS)                                                                          
 ==================================================================================                                                 
 |                                DOSE = 0 MG/L                                   |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 0      CENSORED DEATHS 0    TERMINAL 15        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |     NONE                                                                       |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |                                DOSE = 500 MG/L                                 |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 7      CENSORED DEATHS 0    TERMINAL 8         |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      36    92    113   120   131   150   164                                   |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |                                DOSE = 1000MG/L                                 |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 2      CENSORED DEATHS 0    TERMINAL 13        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      63    127                                                                 |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 ==================================================================================                                                 
                                                                                                                                   
                  WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                                                    
                       STATISTICAL ANALYSIS OF SURVIVAL DATA                                                                        
                                    FEMALE MICE                                                                                     
                       FIRST TERMINAL SACRIFICE AT 177 DAYS                                                                         
                                                                                                                                    
                          INDIVIDUAL SURVIVAL TIMES (DAYS)                                                                          
 ==================================================================================                                                 
 |                                DOSE = 2000MG/L                                 |                                                 
 |                             ---------------------                              |                                                 
 |                                                                                |                                                 
 |  TOTAL 15     UNCENSORED DEATHS 5      CENSORED DEATHS 0    TERMINAL 10        |                                                 
 |                                                                                |                                                 
 |  UNCENSORED DEATHS                                                             |                                                 
 |      66    66    115   141   164                                               |                                                 
 |  CENSORED DEATHS                                                               |                                                 
 |      NONE                                                                      |                                                 
 |                                                                                |                                                 
 ==================================================================================                                                 
                                                                                                                                   
                  WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                                                    
                       STATISTICAL ANALYSIS OF SURVIVAL DATA                                                                        
                                    FEMALE MICE                                                                                     
                       FIRST TERMINAL SACRIFICE AT 177 DAYS                                                                         
 ==================================================================================                                                 
 |               KAPLAN-MEIER SURVIVAL PROBABILITY ESTIMATES (%)                  |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |    DOSE                               TIME (DAYS)                              |                                                 
 |                 18    36    54    72    90   108   126   144   162   177 (A)   |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |           |                                                                    |                                                 
 |0 MG/L     |   100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 |500 MG/L   |   100.0 100.0  93.3  93.3  93.3  86.7  73.3  66.7  60.0  53.3      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 |1000MG/L   |   100.0 100.0 100.0  93.3  93.3  93.3  93.3  86.7  86.7  86.7      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 |2000MG/L   |   100.0 100.0 100.0  86.7  86.7  86.7  80.0  73.3  73.3  66.7      |                                                 
 |           |                                                                    |                                                 
 |           |                                                                    |                                                 
 ==================================================================================                                                 
 ==================================================================================                                                 
 |                           SURVIVAL SUMMARY STATISTICS                          |                                                 
 |                                                                                |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |                                                  DOSE                          |                                                 
 |                                                                                |                                                 
 |                                0 MG/L       500 MG/L     1000MG/L     2000MG/L |                                                 
 |                                                                                |                                                 
 |--------------------------------------------------------------------------------|                                                 
 |SURVIVAL AT END OF STUDY|      100.0%        53.3%        86.7%        66.7%    |                                                 
 |(KAPLAN-MEIER)          |                                                       |                                                 
 |                        |                                                       |                                                 
 |SIGNIFICANCE (B)        |       P=0.256      P=0.009      P=0.464      P=0.050  |                                                 
 |(LIFE TABLE)            |                                                       |                                                 
 |                        |                                                       |                                                 
 |MEAN DAY OF             |          .         115.1         95.0        110.4    |                                                 
 |NATURAL DEATHS (C)      |       (  . )       (15.9)       (32.0)       (19.7)   |                                                 
 |(STANDARD ERROR)        |                                                       |                                                 
 |                        |                                                       |                                                 
 |MEAN LIFE SPAN (D)      |       177.0        148.1        166.1        154.8    |                                                 
 |(STANDARD ERROR)        |       ( 0.0)       (10.9)       ( 8.1)       (10.4)   |                                                 
 |                        |                                                       |                                                 
 ==================================================================================                                                 
                                                                                                                                    
       (A)  FIRST TERMINAL SACRIFICE                                                                                                
       (B)  THE FIRST ENTRY IS THE TREND TEST (TARONE, 1975) RESULT.                                                                
            SUBSEQUENT ENTRIES ARE THE RESULTS OF PAIRWISE TESTS                                                                    
            (COX,1972).  NEGATIVE TRENDS ARE INDICATED BY "N".                                                                      
       (C)  MEAN OF ALL UNCENSORED DEATHS PRIOR TO TERMINAL SACRIFICE                                                               
       (D)  MEAN OF ALL DEATHS (UNCENSORED, CENSORED, TERMINAL SACRIFICE)                                                           
                                                                                                                                   
                                           WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                           
                                                    KAPLAN-MEIER SURVIVAL CURVES                                                    
                                                        0 MG/L           = 1                                                        
                                                        500 MG/L         = 2                                                        
                                                        1000MG/L         = 3                                                        
                                                        2000MG/L         = 4                                                        
                                                                                                                                    
------------------------------------------------------ SPECIES=MICE SEX=MALE -------------------------------------------------------
                                                                                                                                    
                                         Plot of SURVIVAL*WEEK.  Symbol is value of DOSE.                                           
                                                                                                                                    
               |                                                                                                                    
               |                                                                                                                    
      P 100.00 +  1                                   2   1                                   4       3                             
      E        |                                                                                                                    
      R        |                                                                                                                    
      C        |                                                                                                                    
      E  93.33 +                                      2   1   2                               4                           1         
      N        |                                                                                                                    
      T        |                                                                                                                    
               |                                                                                                                    
      S  86.67 +                                              2                                                           2         
      U        |                                                                                                                    
      R        |                                                                                                                    
      V        |                                                                                                                    
      I  80.00 +                                                                                                                    
      V        |                                                                                                                    
      A        |                                                                                                                    
      L        |                                                                                                                    
         73.33 +                                                                                      3                   3         
               |                                                                                                                    
               ---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--       
                  0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26         
                                                                                                                                    
                                                                    WEEK                                                            
                                                                                                                                    
NOTE: 4 obs hidden.                                                                                                                 
                                                                                                                                   
                                           WATER DISINFECTION MODEL (DICHLOROACETIC ACID)                                           
                                                    KAPLAN-MEIER SURVIVAL CURVES                                                    
                                                        0 MG/L           = 1                                                        
                                                        500 MG/L         = 2                                                        
                                                        1000MG/L         = 3                                                        
                                                        2000MG/L         = 4                                                        
                                                                                                                                    
----------------------------------------------------- SPECIES=MICE SEX=FEMALE ------------------------------------------------------
                                                                                                                                    
                                         Plot of SURVIVAL*WEEK.  Symbol is value of DOSE.                                           
                                                                                                                                    
               |                                                                                                                    
               |                                                                                                                    
        100.00 +  1                       2           3   4                                                               1         
               |                                                                                                                    
               |                                                                                                                    
               |                                                                                                                    
         93.33 +                          2           3                   2                   3                                     
               |                                                                                                                    
      P        |                                                                                                                    
      E        |                                                                                                                    
      R  86.67 +                                          4               2           2       3                           3         
      C        |                                                                                                                    
      E        |                                                                                                                    
      N        |                                                                                                                    
      T  80.00 +                                                                      2   2           4                             
               |                                                                                                                    
      S        |                                                                                                                    
      U        |                                                                                                                    
      R  73.33 +                                                                          2   2       4           4                 
      V        |                                                                                                                    
      I        |                                                                                                                    
      V        |                                                                                                                    
      A  66.67 +                                                                              2           2       4       4         
      L        |                                                                                                                    
               |                                                                                                                    
               |                                                                                                                    
         60.00 +                                                                                          2       2                 
               |                                                                                                                    
               |                                                                                                                    
               |                                                                                                                    
         53.33 +                                                                                                  2       2         
               |                                                                                                                    
               ---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+---+--       
                  0   1   2   3   4   5   6   7   8   9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26         
                                                                                                                                    
                                                                    WEEK                                                            
                                                                                                                                    
NOTE: 5 obs hidden.                                                                                                                 
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