Fig. 6

Validation of the risk signature as an independent predictor of prognosis. A and B Univariate and multivariate Cox regression analyses of clinical features and the risk score with overall survival in the train, test and entire sets. C Using the ROC curves to assess the prediction performance of the risk signature for the 1-, 2- and 3-year overall survival of EC patients. AUC, the area under the ROC curve. D Comparison of the prediction accuracy of the risk signature and clinical factors, such as age, gender, grade and stage