Fig. 4

Internal validation of the prognostic model. A The KM curve for the risk score in predicting the OS of OC patients in the TCGA-training dataset. B ROC curve to show the sensitivity and specificity of the prognosis model in TCGA-training dataset. C, D Univariate and multivariate Cox analysis to assess the independence of the risk score in the TCGA-training dataset. E The KM curve for the risk score in predicting the OS of OC patients in the TCGA-testing dataset. F ROC curve to show the sensitivity and specificity of the prognosis model in TCGA-testing dataset. G, H Univariate and multivariate Cox analysis to assess the independence of the risk score in the TCGA-testing dataset