Fig. 2.

XGBoost model evaluation. A ROC curve for the 6-month prognostic model (test data); B ROC curve for the 6-month prognostic model (train data); C ROC curve for the 1-year prognostic model (test data); D ROC curve for the 1-year prognostic model (train data); E ROC curve for the 2-year prognostic model (test data); F ROC curve for the 2-year prognostic model (train data); G ROC curve for the 3-year prognostic model (test data); H ROC curve for the 3-year prognostic model (train data); ROC receiver operating characteristic curve, AUC area under the curve, XGBoost extreme Gradient Boosting