Figure 9. Construction and evaluation of nomogram for survival prediction of BC patients based on risk score and clinical variables. (A) Univariate Cox regression analysis. (B) Multivariate Cox regression analysis. (C) Nomogram for predicting the 3- and 5-year RFS of BC patients. (D) ROC curves for 3- and 5-year RFS of the nomogram. (E, F) Calibration curves for predicting 3- and 5-year RFS.