PSAT1 and neoplasm: PSAT1 expression was significantly associated to shorter TTP both in univariate (HR = 1.77; 95% CI: 1.77 to 3.03; P = 0.037; Fig. 2B) and multivariate analyses (HR = 1.63; 95% CI: 1.02 to 1.59; P = 0.039; Table 2) independent of traditional predictive factors (DFI, dominant site of relapse and tumor differentiation).