Risk factors and nomogram for predicting delayed gastrointestinal recovery after radical gastrectomy

Figure 2 Receiver operating characteristic curve of the nomogram prediction model. The receiver operating characteristic curve demonstrates the discriminative performance of the nomogram in predicting delayed gastrointestinal recovery after radical gastrectomy. The model achieved an area under the curve (AUC) of 0.802 (95%CI: 0.747-0.857), indicating good discriminative ability. The dashed diagonal line represents the reference line (AUC = 0.500), corresponding to random chance. AUC: Area under the curve.