Fig. 2: Kaplan-Meier curves for DFS and OS according to the PS.

a Training cohort (upper: DFS, lower: OS, n = 203), (b) internal validation cohort (upper: DFS, lower: OS, n = 204), and (c) external validation cohort (upper: DFS, lower: OS, n = 333). We calculated the p values using the unadjusted log-rank test and hazard ratios using a univariate Cox regression analysis. DFS Disease-free survival, OS Overall survival, PS Proteomic signature, HR Hazard ratio, CI Confidential interval.