BMI body mass index, CHD coronary heart disease, MI myocardial infarction, PCI percutaneous coronary intervention, TC total cholesterol, TG triglyceride, LDL-c low-density lipoprotein cholesterol, HDL-c high-density lipoprotein cholesterol, FBG fasting blood glucose, BNP brain natriuretic peptide, LVEDD left ventricular end-diastolic diameter, LAD left atrium diameter, LVEF left ventricular ejection fraction. The gene discussed is NPPB; the disease is myocardial infarction.