Fig. 3.

Construction of the risk signature in the TCGA cohort. A Univariate Cox regression analysis of HCC for each PRG and 10 genes with P < 0.2. B Cross-validation for tuning the parameter selection in the LASSO regression. C LASSO regression of the 10 OS-related genes. D Distribution of patients based on the risk score. E PCA plot for HCCs based on the risk score. F The survival status for each patient (low-risk population: on the left side of the dotted line; high-risk population: on the right side of the dotted line). G Kaplan–Meier curves for the OS of patients in the high- and low-risk groups. H ROC curves demonstrated the predictive efficiency of the risk score