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Evaluation of the of the model performance for the multivariate cause-specific Cox regression model for the risk of progression to castration-resistant prostate cancer (CRPC) with receiver-operating characteristic (ROC) curves stratified by AZGP1 expression and omitting the AZGP1 status. Area under the ROC curve (AUC) and p-values of the comparative tests are reported one (A) and five (B) years after the start of ADT.
