Fig. 4From: Development and validation of a risk prediction model for postoperative pneumonia in adult patients undergoing Stanford type A acute aortic dissection surgery: a case control studyThe ROC curves and decision curve analysis in the training and validation sets. ROC curves and comparison between the two AUCs (A), decision curves in the two sets (B), clinical impact curves in the training set (C) and the validation set (D). AUC area under the receiver operating characteristic curve; CI confidence interval; ROC receiver operating characteristicBack to article page