Figure 2. The association between three-gene signature and survival in training and validation groups. (A) Kaplan-Meier survival curves were plotted to estimate the overall survival probabilities for the low-risk versus high-risk group in training group (n=276). (B) Progression-free survival was estimated by Kaplan-Meier curves in training group (n=276). (C) Overall survival and (D) progression-free survival were estimated in validation group (n=230).