Table 3.

Association between moderate-intensity or vigorous-intensity physical activity and NAFLD in men

Variable	Case	Control	Univariate model	Multivariate model 1	Multivariate model 2	Multivariate model 3
(MET-min/week)	No (%)	No (%)	OR (95% CI)	aOR (95% CI)	aOR (95% CI)	aOR (95% CI)
Moderate-intensity physical activity
None	204 (55.0)	170 (45.8)	1 (reference)	1 (reference)	1 (reference)	1 (reference)
~2.5 hours	67 (18.1)	75 (20.2)	0.74 (0.51 to 1.10)	0.73 (0.47 to 1.13)	0.72 (0.47 to 1.12)	0.72 (0.46 to 1.12)
≥2.5 hours	100 (27.0)	126 (34.0)	0.66 (0.47 to 0.92)*	0.63 (0.43 to 0.91)*	0.62 (0.43 to 0.91)*	0.63 (0.43 to 0.92)*
P value for trend			0.01*	0.01*	0.01*	0.01*
Vigorous-intensity physical activity
None	272 (73.3)	251 (67.7)	1 (reference)	1 (reference)	1 (reference)	1 (reference)
~1.25 hours	9 (2.4)	12 (3.2)	0.69 (0.29 to 1.67)	0.73 (0.26 to 2.07)	0.73 (0.26 to 2.07)	0.74 (0.26 to 2.08)
≥1.25 hours	90 (24.3)	108 (29.1)	0.77 (0.55 to 1.07)	0.68 (0.47 to 0.98)*	0.68 (0.46 to 0.98)*	0.66 (0.45 to 0.96)
P value for trend			0.10	0.04*	0.04*	0.03*

Multivariate model 1: adjusted for BMI, hypertension, diabetes and fasting blood glucose.

Multivariate model 2: adjusted for BMI, hypertension, diabetes, fasting blood glucose and sedentary time.

Multivariate model 3: adjusted for BMI, hypertension, diabetes, fasting blood glucose, sedentary time and energy intake.

aOR, adjusted OR; MET, metabolic equivalent of energy; NAFLD, non-alcoholic fatty liver disease.

* P<0.05.