To acquire the risk evaluation of CAD, we conducted a survey about standard lipid profiles, involving serum levels of total cholesterol (TC)4, triglyceride (TG)5, high-density lipoprotein cholesterol (HDL-C)6, low-density lipoprotein cholesterol (LDL-C)7, and apolipoprotein (Apo) A1, ApoB and the ratio of ApoA1 to ApoB6 in the Maonan and Han populations. The gene discussed is APOB; the disease is coronary artery disorder.