ITP survival analysis: oxaloacetic acid
Results are based on the use of pooled factor(s) that is/are stratified within the survival analysis model.
All test sites combined – female
Survival analysis details -- Female
OAA effect on survival,
females, test site = All
Log-rank test
chisq = 0.5901
p = 0.4424
Wang-Allison test
odds ratio = 1.1574
p = 0.729
Quantiles
OAA
Control
% difference
25% died before day:
774
753
+3 %
Median lifespan (days)
892
865
+3 %
75% died before day:
1016
994
+2 %
90% died before day:
1123
1088
+3 %
Max lifespan observed (days)
1282
1359
Number of mice at start
134
275
Animal censor events are denoted by + marks in the plot
All test sites combined – male
Survival analysis details -- Male
OAA effect on survival,
males, test site = All
Log-rank test
chisq = 0.6546
p = 0.4185
Wang-Allison test
odds ratio = 1.1735
p = 0.6136
Quantiles
OAA
Control
% difference
25% died before day:
609
588
+4 %
Median lifespan (days)
819
784
+4 %
75% died before day:
948
954
-1 %
90% died before day:
1107
1074
+3 %
Max lifespan observed (days)
1324
1247
Number of mice at start
147
276
Animal censor events are denoted by + marks in the plot
By individual test site:
TJL – female
TJL – female
Survival analysis details
OAA effect on survival,
females, test site = TJL
Log-rank test
chisq = 0.6995
p = 0.403
Wang-Allison test
odds ratio = 1.6514
p = 0.3802
Quantiles
OAA
Control
% difference
25% died before day:
780
740
+5 %
Median lifespan (days)
946
860
+10 %
75% died before day:
1018
1016
0 %
90% died before day:
1177
1111
+6 %
Max lifespan observed (days)
1243
1340
Number of mice at start
44
92
Animal censor events are denoted by + marks in the plot
TJL – male
TJL – male
Survival analysis details
OAA effect on survival,
males, test site = TJL
Log-rank test
chisq = 0.6147
p = 0.433
Wang-Allison test
odds ratio = 0.4875
p = 0.3722
Quantiles
OAA
Control
% difference
25% died before day:
579
569
+2 %
Median lifespan (days)
749
728
+3 %
75% died before day:
899
923
-3 %
90% died before day:
977
1039
-6 %
Max lifespan observed (days)
1098
1200
Number of mice at start
51
87
Animal censor events are denoted by + marks in the plot
UM – female
UM – female
Survival analysis details
OAA effect on survival,
females, test site = UM
Log-rank test
chisq = 0.5912
p = 0.442
Wang-Allison test
odds ratio = 1.1102
p = 1.0
Quantiles
OAA
Control
% difference
25% died before day:
790
767
+3 %
Median lifespan (days)
926
900
+3 %
75% died before day:
1040
999
+4 %
90% died before day:
1126
1114
+1 %
Max lifespan observed (days)
1282
1359
Number of mice at start
46
91
Animal censor events are denoted by + marks in the plot
UM – male
UM – male
Survival analysis details
OAA effect on survival,
males, test site = UM
Log-rank test
chisq = 2.4576
p = 0.117
Wang-Allison test
odds ratio = 2.8431
p = 0.0757
Quantiles
OAA
Control
% difference
25% died before day:
650
659
-1 %
Median lifespan (days)
841
793
+6 %
75% died before day:
1023
953
+7 %
90% died before day:
1161
1076
+8 %
Max lifespan observed (days)
1263
1191
Number of mice at start
48
93
Animal censor events are denoted by + marks in the plot
UT – female
UT – female
Survival analysis details
OAA effect on survival,
females, test site = UT
Log-rank test
chisq = 0.0896
p = 0.7646
Wang-Allison test
odds ratio = 0.8211
p = 1.0
Quantiles
OAA
Control
% difference
25% died before day:
692
756
-8 %
Median lifespan (days)
836
840
0 %
75% died before day:
956
962
-1 %
90% died before day:
1034
1045
-1 %
Max lifespan observed (days)
1135
1261
Number of mice at start
44
92
Animal censor events are denoted by + marks in the plot
UT – male
UT – male
Survival analysis details
OAA effect on survival,
males, test site = UT
Log-rank test
chisq = 0.3342
p = 0.5632
Wang-Allison test
odds ratio = 1.0
p = 1.0
Quantiles
OAA
Control
% difference
25% died before day:
620
584
+6 %
Median lifespan (days)
848
810
+5 %
75% died before day:
982
1010
-3 %
90% died before day:
1112
1132
-2 %
Max lifespan observed (days)
1324
1247
Number of mice at start
48
96
Animal censor events are denoted by + marks in the plot
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ITP data portal page for more information on
National Institute on Aging's Interventions Testing Program (ITP) including bibliography, data set downloads, and links to all available hosted data.
Statistical definitions