Table 3.
Multivariable Hazard Ratio for All-Cause Mortality based on the Amount of Physical Activity among Individuals with NAFLD as defined by the Hepatic Steatosis Index.
| Age, Sex-Adjusted Model | Multivariable Model 1 | Multivariable Model 2 | ||||
|---|---|---|---|---|---|---|
| HR (95% CI) | p-Value | HR (95% CI) | p-Value | HR (95% CI) | p-Value | |
| Total physical activity (min/week) | ||||||
| 0 | 1 | <0.001 * | 1 | 0.001 * | 1 | 0.002 * |
| 1–149 | 0.57 (0.47–0.70) | <0.001 | 0.59 (0.47–0.75) | <0.001 | 0.61 (0.48–0.78) | <0.001 |
| 150–299 | 0.51 (0.37–0.69) | <0.001 | 0.59 (0.42–0.84) | 0.004 | 0.59 (0.42–0.84) | 0.004 |
| 300– | 0.56 (0.46–0.68) | <0.001 | 0.67 (0.54–0.82) | <0.001 | 0.68 (0.55–0.85) | 0.001 |
| Leisure-time physical activity (min/week) | ||||||
| 0 | 1 | <0.001 * | 1 | 0.006 * | 1 | 0.008 * |
| 1–149 | 0.64 (0.52–0.80) | <0.001 | 0.71 (0.55–0.90) | 0.006 | 0.73 (0.57–0.94) | 0.015 |
| 150–299 | 0.61 (0.45–0.84) | 0.003 | 0.68 (0.48–0.97) | 0.034 | 0.67 (0.47–0.97) | 0.033 |
| 300– | 0.61 (0.46–0.80) | 0.001 | 0.74 (0.56–0.98) | 0.034 | 0.75 (0.56–0.996) | 0.047 |
| Occupation-related physical activity (min/week) | ||||||
| 0 | 1 | 0.004 * | 1 | 0.155 * | 1 | 0.273 * |
| 1–149 | 0.56 (0.40–0.78) | 0.001 | 0.55 (0.39–0.76) | 0.001 | 0.57 (0.41–0.79) | 0.001 |
| 150–299 | 0.55 (0.36–0.82) | 0.005 | 0.62 (0.39–0.98) | 0.041 | 0.63 (0.40–1.00) | 0.050 |
| 300– | 0.78 (0.64–0.95) | 0.015 | 0.89 (0.72–1.10) | 0.286 | 0.92 (0.74–1.15) | 0.449 |
| Transportation-related physical activity (min/week) | ||||||
| 0 | 1 | 0.001 * | 1 | 0.002 * | 1 | 0.004 * |
| 1–149 | 0.77 (0.57–1.02) | 0.072 | 0.81 (0.59–1.09) | 0.162 | 0.81 (0.59–1.11) | 0.187 |
| 150–299 | 0.65 (0.39–1.07) | 0.088 | 0.58 (0.31–1.06) | 0.076 | 0.59 (0.32–1.08) | 0.088 |
| 300– | 0.59 (0.40–0.87) | 0.008 | 0.62 (0.42–0.92) | 0.020 | 0.63 (0.42–0.94) | 0.026 |
The multivariable model 1 was adjusted for age, sex, race/ethnicity, education level, marital status, economic status, smoking status, hypertension, diabetes, total cholesterol, total calorie intake, caffeine consumption, and alcohol consumption using appropriate sampling weights. The multivariable model 2 was adjusted for waist circumference in addition to model 1 using appropriate sampling weights. Abbreviations: NAFLD, nonalcoholic fatty liver disease; HR, hazard ratio; CI, confidence interval. * p-values were analyzed using the test of the trend of hazards.