Establishment of the nomogram
REGRESSION
Based on the results of the multivariate Cox regression analysis, a nomogram was established and is presented in Figure Nomogram predicting CSS of the postoperative patients with GCA.Calibration curves of the nomogram for predicting 3‐year CSS (A) and 5‐year CSS (B) in the training set; the calibration curves of the nomogram for predicting 3‐year CSS (C) and 5‐year CSS (D) in the internal validation set; and the calibration curves of the nomogram for predicting 3‐year CSS (E) and 5‐year CSS (F) in the external validation set.Time‐dependent ROC curves were used to test the predictive power of the 3‐year CSS and 5‐year CSS in the training se (A and D); the internal validation set (B and E); and the external validation set (C and F), respectively.DCA of the nomogram and TNM stage 3‐year CSS and 5‐year CSS of the training (A and D), internal (B and E), and external cohorts (C and F), respectively.