Nomogram integrating systemic immune-inflammation index and blood lipid ratio to predict postoperative gastrointestinal dysfunction in elderly gallstone patients

Figure 1 Construction and validation of a nomogram model for predicting postoperative gastrointestinal dysfunction in elderly patients with cholelithiasis using a modeling cohort. A: Nomogram model construction; B: Receiver operating characteristic curve; C: Calibration curve; D: Decision curve analysis. SII: Systemic immune-inflammation index; TC: Total cholesterol; HDL-C: High-density lipoprotein cholesterol ratio; AUC: Area under the curve.

Figure 2 Verifies the validation of the nomogram model by the validation queue. A: Receiver operating characteristic curve; B: Calibration curve; C: Decision curve analysis. AUC: Area under the curve.