Fig. 4

Kaplan–Meier curve and ROC curve analysis established according to the 7-gene signature prognostic model. A Kaplan–Meier curve OS comparison between the high-risk and low-risk groups. B ROC curve verification between the high-risk and low-risk groups of BC patients at 1, 3, 5 and 8 years. C ROC curve verification between the high-risk and low-risk groups of GSE48075 BC patients at 1, 2 and 3 years. ROC, receiver operating characteristic; OS, overall survival