Figure 2. Nomogram of prognosis prediction in primary liver cancer patients (PLCs). Nomogram for predicting the overall survival (OS) of PLC patients in the low- (A), middle- (B) and old- (C) age group, respectively. Kaplan-Meier curves for OS among the low-risk, middle-risk, and high-risk groups stratified according to the Nomo-score in the low- (D), middle- (E) and old- (F) age group, respectively.