We investigated the prognostic significance of mutation to the TP53 tumor s
uppressor gene in a series of 908 breast cancer patients treated with or wi
thout adjuvant therapies. The frequency of TP53 mutation detected by single
strand conformation polymorphism (SSCP) was 19.4% (176/908) in the overall
tumor series. In multivariate analysis, TP53 mutation was independently as
sociated with worse survival in the overall (HR = 2.1, 95% CI [1.5-3.1], P
< 0.0001), non-adjuvant treated (HR = 2.2, 95% CI [1.2-4.2], P = 0.017) and
adjuvant treated (HR = 2.0, 95% CI [1.3-3.1], P = 0.0009) patients.