Prediction and stratification for the surgical adverse events after minimally invasive esophagectomy: A two-center retrospective study

Figure 6 Receiver operating characteristic curves of prediction model in train set and validation set. A: Receiver operating characteristic curves of train set; the area under the curve of prediction model was 0.889 (95% confidence interval: 0.853-0.926); B: Receiver operating characteristic curves of validation set; the area under the curve of prediction model was 0.793 (95% confidence interval: 0.701-0.884).