IGHE and coronary artery disorder: Overall, the multivariable Cox proportional hazards model demonstrated that the recurrence hazard of CVA in the CCHD group was significantly higher than that in the non-CHD cohort (aHR = 3.281; 95% CI 1.648–6.530; P = 0.001) after adjusting for CHD classification, MP infection and IgE sensitization; while the recurrence hazard of CVA in the SCHD group was also significantly higher than that in the non-CHD cohort (aHR = 2.555; 95% CI 1.739–3.752; P = 0.000).