Preoperative echocardiography-based nomogram for postoperative cardiac complications in pancreatic cancer with vascular invasion

Figure 3 Development and internal validation of the nomogram for predicting major postoperative cardiac complications. A: Calibration curve; B: Receiver operating characteristic curve; C: Distribution of the C-index from bootstrap internal validation; D: Distribution of predicted probabilities. AUC: Area under the receiver operating characteristic curve; MPCC: Major postoperative cardiac complication.