The supplemental material of "A predictive system for Henoch-Schönlein purpura nephritis established by multivariate analysis plus nomogram model in Chinese hospitalized children: A retrospective cohort study"

This material contains supplemental figure for evaluating the predictive system of HSPN based on hospitalized pediatric HSP patients. The calibration curves indicated that the nomogram-predicted probabilities corresponded well with the actual probabilities.
Figure legend: Evaluation of the predictive system for HSPN based on hospitalized pediatric HSP patients. Calibration curves: the X-axis represents the nomogram-predicted probability of HSPN, and the Y-axis represents the actually observed probability. Perfect prediction would correspond to the 45-degree dotted black line. The solid red line represents the entire cohort without bias-correction, and the solid blue line is bias-corrected by bootstrapping (B=1,000 repetitions), indicating the observed nomogram performance.