The correlation between the risk score and the clinical data, and the subgroup analysis, Multivariate Cox regression analyses and ROC curve of OS of the clinical data. A: The correlation between the risk score and the clinical data. B: The Kaplan-Meier analysis of different age groups (≤60 and >60). C: The Kaplan-Meier analysis of different gender groups (female and male). D: The Kaplan-Meier analysis of different grade groups (G1+G2 and G3+G4). E: The Kaplan-Meier analysis of different stage groups (I+II and III+IV). F: Multivariate Cox regression analysis. The risk score and stage were independent risk factors for OS. G: The ROC curve of the independent risk factors (the risk score and stage) for OS in HCC. Data from TCGA (median risk score as the cut-off value). Clinical data: age (≤60 vs. >60), gender (female vs. male), grade (G1+G2 vs. G3+G4), stage (I+II vs. III+IV), stage T (T1 +T2 vs. T3+T4). Earlier stage: stage I+II, Later stage: stage III+IV. Risk Score (high-risk score vs. low-risk score). NS: not significant; *P < 0.05, **P < 0.01, ***P < 0.001.