Clinical study predicting prolonged postoperative ileus after laparoscopic colorectal cancer surgery with intelligent bowel sound auscultation system

Figure 8 Performance evaluation graph of predictive model. A: The receiver operating characteristic curve assesses the predictive model for postoperative prolonged postoperative ileus in colorectal cancer, area under the curve = 0.816; B: Decision curve analysis is used to assess the predictive model, indicating it has a good clinical net benefit; C: Calibration curve reflects how closely the predicted risk matches the actual risk; D: The nomogram highlights how different factors influence disease diagnosis. AUC: Area under the curve; RTBS: Recovery time of bowel sounds; NBS: Number of bowel sounds.