Figure 4

Validation of prognostic signature. (A) K-M survival curve analysis of two risk groups in the (A)TRAIN, (B)TEST, and (C) ALL cohorts. ROC curves for 1-, 3-, and 5-year survival for the (D) TRAIN, (E) TEST, and (F) ALL cohorts. ROC curves for risk score, age, gender, and staging in (G) TRAIN, (H) TEST, and (I) ALL cohorts.