The aim of this study was to analyze the clinical significance of oxidative stress (OS)–related indices, including inflammatory markers and lipid and platelet (PLT) parameter, in coronary artery lesions (CALs) in Kawasaki disease (KD).
Clinical data of 952 KD patients diagnosed between January 2019 and March 2022 were collected and divided into CAL and NCAL groups. All the KD patients were randomly divided into training set and verification set. The univariate analysis and multivariate logistic regression analysis of training set were used to identify the OS-related independent risk factors of CALs, which were then used to construct a predictive nomogram. Calibration curve and receiver operating characteristic curve were used to evaluate the performance of the model. The predictive nomogram was further validated on verification set.
In the training set, 137 KD patients (18.0%) showed CALs. C-reactive protein, serum amyloid A, PLT count, monocyte–to–high-density lipoprotein (HDL) ratio, and PLT-to-lymphocyte ratio were significantly higher, whereas HDL was lower in the CAL group than the NCAL group. Increased C-reactive protein, serum amyloid A, PLT, and decreased HDL were identified as independent risk factors. The nomogram constructed using these factors showed satisfactory calibration degree and discriminatory power (the area under the curve, 0.887). In the verification set, the area under the curve was 0.795.
The predictive nomogram constructed using 4 OS-related risk factors associated with CALs in patients with KD could be a useful tool for early diagnosis of CALs in KD.