Novel risk scoring system for prediction of pancreatic fistula after pancreaticoduodenectomy

Figure 3 Receiver operating characteristic curves of drain amylase levels for low and high-risk groups. A: Receiver operating characteristic (ROC) curves of drain amylase levels on postoperative day (POD) 3 and POD 5 in the low risk group. The areas under the curve (AUCs) were 0.859 and 0.748, respectively; B: ROC curve of drain amylase level on POD 1 in the high-risk group. The AUC was 0.850. ROC: Receiver operating characteristic; POD: Postoperative day; AUC: Area under the curve; CI: Confidence interval.