Fig. 2

The relative efficiencies for predicting DGF using receiver operating characteristic curves (ROC). A ROC curves were constructed to evaluate the predictive power of independent risk factors in the discovery cohort. B ROC curves were constructed to evaluate the predictive power of independent risk factors in the validation cohort. C ROC curves were constructed to evaluate the predictive power of different prediction models in the discovery cohort. D ROC curves were constructed to evaluate the predictive power of different prediction models in the validation cohort