Establishment of predictive models and determinants of preoperative gastric retention in endoscopic retrograde cholangiopancreatography

Figure 3 Receiver operating characteristic curve analysis of the model predicting pre-procedural gastric retention in the training set. A: An area under the curve (AUC) value greater than 0.9 indicates that the prediction value of the prediction model is excellent and can be further analyzed; B: The model in the verification set is 0.7 < AUC < 0.9, indicating that the model has good predictive value and can be further used in clinical practice. AUC: Area under the curve.