Subgroup analysis according to obesity and diabetes. The association between NAFLD status and vitamin (serum retinol and α-tocopherol) levels was estimated using logistic regression models. The logistic model was adjusted for age, sex, BMI, GFR, hypertension, diabetes, dyslipidemia status, income level, smoking status, alcohol consumption, exercise status, use of vitamin supplements, and daily dietary intake of vitamin A. The association remained significant for NAFLD according to FSI and CNS, except in diabetic patients according to FSI. Q, quartile; AOR, adjusted odds ratio; CI, confidence interval; NAFLD, non-alcoholic fatty liver disease; HSI, hepatic steatosis index; FSI, Framingham steatosis index; CNS, comprehensive NAFLD score.