Figure 7. Evaluation of the predictive performance of the model. (A) Receiver operating characteristic (ROC) analysis of the sensitivity and specificity of the survival time by the five CpG sites in the training dataset. (B) The Kaplan-Meier analysis was used to visualize the survival probability for the low-risk versus high-risk group of patients based on the median risk value in the training dataset. Rows represent survival time (years), and columns represent survival rate. (C) Verification in the testing dataset with the Kaplan-Meier analysis.