Figure 4

Identification the efficiency and independence of the prognostic risk score model based on SFs. (a,b) Kaplan–Meier analysis of the prognostic risk score model for HCC patients in training set and validating set, respectively. (c,d) ROC curve for HCC patients in training set and validating set respectively. (e,f) Univariate and multivariate analyses of the risk level calculated by the prognostic model, clinical factors and pathological characteristics with OS of HCC patients.