Three multivariate logistic regression models were constructed to investigate the relationship between serum hemoglobin and MACE (Table 2): Crude model, without covariate adjustment; Model 1, adjusting for age, sex; Model 2 was adjusted for age, sex, SBP, heart rate, WBC, platelet, FBG, HDL, LDL, albumin, creatinine, uric acid, cTnI, CK‐MB, hypertension, diabetes mellitus, previous MI, culprit vessels, and killip grade. The gene discussed is TNNI3; the disease is myocardial infarction.