In multivariate model of logistic regression, adjusted for age, sex, extra salt intake, smoking, tobacco chewing, and habit of alcohol consumption, the eNOS 894TT genotype (OR 7.84; 95% CI 2.57–23.96) and eNOS 894GT genotype (OR 3.98; 95% CI 2.65–5.98) were at an increased risk of hypertension. The gene discussed is NOS3; the disease is hypertensive disorder.