Fig. 7

Association between the PC combination risk score model and survival. a The PC combination risk score model was based on five proteins and five clinicopathological variables from four PCs. The patients were ranked according to their risk scores; the line divides patients into low-risk and high-risk score groups. b Kaplan–Meier survival analysis of patients in the low-risk and high-risk score groups. p values were determined by the log-rank test. c ROC curves for the various prognosis prediction models. Five prediction models, PC combination, PC1, PC2, PC3, and PC4, were included in the analysis. The PC combination and PC1 models were better predictors than the other models (p < 0.05)