Table 4. Associations between moderate-to-vigorous physical activity and obesity by waist-to-height ratio (WHtR) and body mass index (BMI) in men and women.
| Men | Women | |
|---|---|---|
| OR (95% CI)a | OR (95% CI)a | |
| Obesity by WHtR ≥0.50 | ||
| Moderate-to-vigorous PA | ||
| Inactive | 1.00 | 1.00 |
| Active | 0.69 (0.53–0.89) | 0.94 (0.75–1.18) |
| Very active | 0.76 (0.63–0.91) | 0.84 (0.71–0.998) |
| p for trend | 0.007 | 0.046 |
| Obesity by BMI ≥25 kg/m2 | ||
| Moderate-to-vigorous PA | ||
| Inactive | 1.00 | 1.00 |
| Active | 0.78 (0.59–1.03) | 0.92 (0.72–1.18) |
| Very active | 0.82 (0.67–0.99) | 0.96 (0.80–1.15) |
| p for trend | 0.060 | 0.658 |
| Obesity by BMI ≥30 kg/m2 | ||
| Moderate-to-vigorous PA | ||
| Inactive | 1.00 | 1.00 |
| Active | 0.40 (0.15–0.98) | 0.96 (0.55–1.68) |
| Very active | 0.90 (0.52–1.56) | 0.80 (0.52–1.23) |
| p for trend | 0.978 | 0.296 |
CI: confidence interval; OR: odds ratio; PA: physical activity.
aAdjusted for age group (19–39, 40–64, ≥65 years), academic achievement (elementary school, middle school, high school, college), household income (quartile), smoking status (never, former-smoker, current smoker), alcohol consumption (non-drinker, ≤1 drink/month, 2–4 drinks/month, ≥5 drinks/month), history of diabetes mellitus, dyslipidemia, hypertension, and arthritis, daily energy intake per weight (kg) accounting for gender (quartile), marriage status (not married, married, divorced), and engagement of resistance exercise (≤1/week, ≥2/week) for both men and women, and menopausal status (yes or no), breast feeding (yes or no), and hysterectomy (yes or no) for women.