Table 3. Association between dietary intake of vitamin C and NAFLD or AHF.

Models	NAFLD		AHF
	OR (95%CI)	P-value	OR (95%CI)	P-value
Crude model
Dietary intake of vitamin C
Low	Ref.		Ref.
Middle	0.79 (0.72, 0.87)	<0.0001	1.03 (0.84, 1.25)	0.7935
High	0.70 (0.63, 0.77)	<0.0001	0.86 (0.71, 1.06)	0.1546
Adjusted model 1
Dietary intake of vitamin C
Low	Ref.		Ref.
Middle	0.80 (0.73, 0.89)	<0.0001	0.84 (0.67, 1.05)	0.1183
High	0.70 (0.63, 0.77)	<0.0001	0.72 (0.57, 0.91)	0.005
Adjusted model 2
Dietary intake of vitamin C
Low	Ref.		Ref.
Middle	0.83 (0.75, 0.92)	0.0003	0.83 (0.67, 1.04)	0.1015
High	0.75 (0.67, 0.83)	<0.0001	0.72 (0.57, 0.91)	0.0052
Adjusted model 3
Dietary intake of vitamin C
Low	Ref.		Ref.
Middle	0.81 (0.73, 0.90)	<0.0001	0.83 (0.66, 1.03)	0.0966
High	0.71 (0.64, 0.80)	<0.0001	0.70 (0.55, 0.89)	0.0032
Adjusted model 4
Dietary intake of vitamin C
Low	Ref.		Ref.
Middle	0.81 (0.73, 0.90)	0.0002	0.79 (0.62, 1.00)	0.05
High	0.74 (0.66, 0.83)	<0.0001	0.69 (0.54, 0.89)	0.0042
Adjusted model 5
Dietary intake of vitamin C
Low	Ref.		Ref.
Middle	0.82 (0.73, 0.93)	0.002	0.80 (0.62, 1.02)	0.0668
High	0.78 (0.69, 0.89)	0.0002	0.72 (0.56, 0.93)	0.0122

Crude model was not adjusted

Adjusted model 1 adjusted for age, race, education level, ratio of family income to poverty

Adjusted model 2 adjusted for model 1 + smoking status, work activities status, recreational activities status

Adjusted model 3 adjusted for model 2 + dietary energy intake, dietary protein intake, Dietary alcohol intake

Adjusted model 4 adjusted for model 3 + hypertension status, diabetes status

Adjusted model 5 adjusted for model 4 + uric acid, fasting glucose, glycohemoglobin, total cholesterol, HDL cholesterol, creatinine