Figure 1.The ROC curves for BM. (A) The ROC curves of CCRT; (B) The ROC curves of RT dose; (C) The ROC curves of PNI; (D) The ROC curves of complex (CCRT, RT dose, and PNI). Abbreviations: ROC: receiver operating characteristic; BM: brain metastases; CCRT: concurrent chemoradiotherapy; RT: radiotherapy; PNI: prognostic-nutrition index; FPR: false positive rate; TPR: true positive rate.
