A nomogram for predicting Kawasaki Disease in acutely febrile children with liver injury
摘要
Liver injury is a common but nonspecific feature of acute Kawasaki disease (KD), often obscuring the diagnosis and delaying treatment. This study aimed to develop and validate a nomogram to predict KD risk in febrile children with liver injury. We conducted a retrospective study of children admitted with fever and liver injury between January 2019 and December 2024. A nomogram was developed using multivariable logistic regression in a training cohort, internally validated, and further evaluated in an independent temporal validation cohort (January–September 2025). Among 1,031 children, KD was the second most common specific diagnosis (13.4%). Nine independent predictors were identified: duration of fever, absolute neutrophil count, absolute lymphocyte count, C-reactive protein, albumin, gamma-glutamyl transferase, total bilirubin, high-density lipoprotein, and serum potassium. The nomogram demonstrated excellent discrimination, with AUCs of 0.983 (training test), 0.962 (internal test), and 0.996 (temporal validation). Calibration and decision-curve analyses confirmed clinical utility.
Conclusion: We constructed and validated a robust nomogram using accessible clinical variables. As a supplementary risk-assessment tool, it is designed to raise clinical suspicion of KD in febrile children with liver injury, thereby facilitating earlier intervention and optimized management.