Figure 2.
Risk stratification combining PIIs and TNM staging in relation to overall survival and disease-free survival of CRC in the training cohort. Kaplan–Meier curves of four risk groups for overall survival (A) and disease-free survival (B). Multivariate Cox analyses of the four risk groups for overall survival (C) and disease-free survival (D), adjusting for the significant clinicopathological factors in relation to overall survival (Table 2) and disease-free survival (Table 3).