The inactivation of p53 decreases the survival of NHD13+ Tg mice with MDS or AML. (A) Kaplan-Meier survival curves for the NHD13+ (n = 23), NHD13+p53+/− (n = 25), NHD13+p53−/− (n = 18) mice with MDS or AML, and the p53+/− (n = 24), p53−/− (n = 23) control mice are shown. The P value represents the comparison of survival between the NHD13+p53−/− and p53−/− mice, or a comparison of survival between NHD13+p53+/− and p53+/− mice (***P < .001). (B) Survival curves for the NHD13+ (n = 23), NHD13+p53+/− (n = 25), and NHD13+p53−/− (n = 18) mice with MDS or AML. The P value represents a comparison of survival between the NHD13+p53−/− and NHD13+ mice, or between the NHD13+p53+/− and the NHD13+ mice (***P < .001). (C) Survival curves for the NHD13+ (n = 7), NHD13+p53+/− (n = 14), and NHD13+p53−/− (n = 10) mice with MDS. The P value represents the comparison of survival between NHD13+p53−/− and NHD13+ MDS mice (***P < .001). (D) Survival curves for the NHD13+ (n = 16), NHD13+p53+/− (n = 11), and NHD13+p53−/− (n = 8) mice with AML. The P value represents a comparison of survival between NHD13+p53−/− and NHD13+ mice, or between NHD13+p53+/− and NHD13+ mice (***P < .001).