Validation of the nomogram
The area under curve (AUC) of the nomogram was up to 0.938 (0.904–0.972) in the training group (Area under the curve (AUC) for the nomogram. Probability curve and discrimination slope for the nomogram. Calibrating evaluation and clinical usefulness of the nomogram. Predictive measures of the nomogram in the training and validation groups.AUC, area under the curve; CI, confident interval; NPV, negative predictive value; PPV, positive predictive value.Additionally, feature importance analysis was employed using SHAP, and it identified that the top three important variables were BHS-20, GAD-7, and marital status (Feature importance analysis. 