Each stratification adjusted for all the factors (age, gender, education level, race, diabetes, hemoglobin A1c, BMI, AST, ALT, urea nitrogen, drinker, SBP, DBP, kidney disease, total cholesterol, smoker, uric acid, hypertension, and serum creatinine) except the stratification factor itself. The gene discussed is GPT; the disease is hypertensive disorder.