The OR and AOR for the 9 SNPs selected by backward logistic regression for subgroups related to several basic demographic characteristics.

*<p>1.Odds ratios (ORs) were computed by having only SNP variables in the logistic regression.</p>*<p>2.Significant SNPs were selected by backward logistic regression for subgroups.</p>*<p>3.Adjusted odds ratios (AORs) were computed by having SNP variables in the analysis model with covariates of sex, diabetes mellitus, coronary heart disease, smoker, hypertension, age, body mass index, thiobarbituric acid reactive substance, thiols, triglyceride, and cholesterol.</p>*<p>4.Adjusted covariates were added in models with significant SNPs.</p><p><i>P</i> = <i>P</i> value.