As indicated in Table 5, the logistic regression analyses showed that being male [odds ratio (OR) = 2.543, 95% confidence interval (CI): 1.801–3.077, p = 0.040], age ≤2 years (OR = 3.002, 95% CI: 2.744–3.641, p = 0.012), duration of fever ≥10 days (OR = 2.089, 95% CI: 1.624–2.515, p = 0.028), Hb ≤105 g/L (OR = 1.914, 95% CI: 1.431–2.406, p = 0.013), and CRP ≥100 mg/L (OR = 2.168, 95% CI: 1.893–2.531, p = 0.035) were the risk factors of CAL in children with Kawasaki disease (all p < 0.05). The gene discussed is GSTM1; the disease is Kawasaki disease.