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

Figure 4 Decision curve analysis of the nomogram prediction model. The decision curve analysis evaluates the clinical net benefit of the nomogram across a range of threshold probabilities. The solid line represents the nomogram model, the dashed line represents the “Treat All” strategy, and the dash-dotted horizontal line represents the “Treat None” strategy. The nomogram demonstrated superior net benefit over both extreme strategies across a threshold probability range of 0.10 to 0.75 (shaded area), indicating favorable clinical utility and supporting its application in guiding individualized perioperative decision-making.