Nomogram validation of OS and DSS
DSS
The predicting outcomes of the model nomogram of OS and DSS were evaluated in the respective training, internal, and external validation cohorts by calibrating curves and the decision-curve analysis (DCA). Besides, we evaluated the accuracy of the nomogram model by examining the 1-, 3-, 5- year receiver operating characteristic (ROC) curve, 5-year variable-dependent ROC curves, and time-dependent area under the ROC curve (AUC). R packages involved in the analysis mentioned above included “survival”, “survminer”, “rms”, “QHScrnomo”, “regplot”, “ggDCA”, and “timeROC”.