Fig. 2

Prognostic differences by risk scores. A-C Kaplan-Meier analysis showed significant differences in five-year overall survival between high-risk and low-risk groups in the training, testing, and full sets. D-F Receiver operating characteristic curves for overall survival at 1, 3, and 5 years in the training, testing, and full sets. G-I Risk scores were ranked from low to high to obtain patient and expression heatmaps for four genes in The Cancer Genome Atlas training, testing, and full sets