Table 2 presents the results of the univariate logistic regression analysis, which identified significant associations between several factors and IVIG resistance, including winter onset, chlamydia, fever duration, lips and oral, non-suppurative conjunctivitis, fever duration before the first IVIG dose, and hemoglobin, NT-proBNP, serum ALB, and TBIL levels (all p <0·05). Here, NPPB is linked to chlamydia trachomatis infectious disease.