Figure 6. Evaluation of risk model and time-dependent ROC curve analysis. (A) Univariate and Multivariate Cox analysis of risk score and clinical characteristics in TCGA. (B) Univariate and Multivariate Cox analysis of risk score and clinical characteristics in GEO. (C) ROC curve analysis in TCGA. (D) ROC curve analysis in GEO. ROC: Receiver operating characteristic curve.