The results showed that, after adjusting for sex, age, hypertension, diabetes mellitus, smoking history, BMI, cholesterol, HDL-C, triglycerides, and lipoprotein a, higher ApoB levels were significantly correlated with the severity of coronary artery stenosis (P<0.005), whereas higher levels of LDL-C as well as TyG did not have a significant correlation with coronary artery stenosis severity (P=0.160and P=0.196) (Table 3). This evidence concerns the gene APOB and coronary stenosis.