Table 2.
Association between physical activity and NAFLD in male
| 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) |
| Total amount of physical activity | ||||||
| ≤1440 | 153 (41.2) | 124 (33.4) | 1 (reference) | 1 (reference) | 1 (reference) | 1 (reference) |
| 1440–3180 | 104 (28.0) | 124 (33.4) | 0.68 (0.48 to 0.97) | 0.62 (0.41 to 0.93)* | 0.62 (0.41 to 0.93)* | 0.62 (0.41 to 0.92)* |
| >3180 | 114 (30.7) | 123 (33.2) | 0.75 (0.53 to 1.06) | 0.62 (0.41 to 0.92)* | 0.61 (0.41 to 0.92)* | 0.60 (0.40 to 0.91)* |
| P value for trend | 0.09 | 0.02* | 0.02* | 0.01* | ||
| Light-intensity physical activity | ||||||
| ≤525 | 121 (32.6) | 125 (33.7) | 1 (reference) | 1 (reference) | 1 (reference) | 1 (reference) |
| 525–1500 | 127 (34.2) | 125 (33.7) | 1.05 (0.74 to 1.49) | 1.00 (0.67 to 1.49) | 1.00 (0.67 to 1.50) | 1.03 (0.69 to 1.55) |
| >1500 | 123 (33.2) | 121 (32.6) | 1.05 (0.74 to 1.50) | 0.96 (0.64 to 1.43) | 0.96 (0.64 to 1.44) | 0.95 (0.63 to 1.44) |
| P value for trend | 0.79 | 0.83 | 0.84 | 0.82 | ||
| Moderate-intensity physical activity | ||||||
| None | 204 (55) | 170 (45.8) | 1 (reference) | 1 (reference) | 1 (reference) | 1 (reference) |
| ≤684 | 74 (19.9) | 79 (21.3) | 0.78 (0.54 to 1.14) | 0.79 (0.52 to 1.21) | 0.79 (0.51 to 1.21) | 0.78 (0.51 to 1.20) |
| >684 | 93 (25.1) | 122 (32.9) | 0.64 (0.45 to 0.89)* | 0.59 (0.40 to 0.86)* | 0.58 (0.39 to 0.86)* | 0.58 (0.40 to 0.86)* |
| 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) |
| ≤960 | 28 (7.5) | 35 (9.4) | 0.74 (0.44 to 1.25) | 0.77 (0.42 to 1.42) | 0.77 (0.42 to 1.42) | 0.77 (0.42 to 1.41) |
| >960 | 71 (19.1) | 85 (22.9) | 0.77 (0.54 to 1.10) | 0.65 (0.43 to 0.98)* | 0.65 (0.43 to 0.98)* | 0.63 (0.41 to 0.95)* |
| P value for trend | 0.12 | 0.03* | 0.03* | 0.02* | ||
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; BMI, body mass index; MET, metabolic equivalent of energy; NAFLD, non-alcoholic fatty liver disease.
*P<0.05.