Table 2.
Linear regression models of physical activity with obesity related traits by gender and age groups
| Female | Male | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Age (years) | Variables | Regular exercise- < 3/week b (95% CI) | Regular exercise- ≥ 3/week b (95% CI) | Regular exercise- < 3/week b (95% CI) | Regular exercise- ≥ 3/week b (95% CI) | ||||
| Reference = no regular exercise | |||||||||
| 45 to 64 | BMI | -1.51**(-2.34, -0.69) | -2.01**(-2.54, -1.47) | -0.42(-0.99, 0.14) | -0.94**(-1.29, -0.59) | ||||
| Waist circumference (cm) | -3.39***(-5.26, -1.52) | -5.70***(-5.21, -1.52) | -1.72(-3.92, 0.48) | -3.10***(-4.46, -1.74) | |||||
| Whole body fat mass (kg) | -2.41**(-3.45, -1.37) | -4.38**(-5.05, -3.70) | -0.83(-1.79, 0.13) | -1.99** (-2.59, -1.39) | |||||
| % Fat | -1.47**(-2.05, -0.89) | -3.17**(-3.54, -2.79) | -0.81**(-1.43, -0.19) | -1.41** (-1.75, -0.98) | |||||
| ≥ 65 | Reference = no regular exercise | ||||||||
| BMI | -2.23**(-3.49, -0.96) | -2.96**(-3.73, -2.20) | -0.38 (-1.89, 1.13) | -1.89**(-2.74, -1.04) | |||||
| Waist circumference (cm) | -5.72(-9.02, -2.42) | -6.93***(-9.02, -2.42) | 0.22(-4.85,5.28) | -5.59***(-8.42, -2.76) | |||||
| Whole body fat mass (kg) | -3.31**(-5.30. -1.32) | -4.55**(-5.76, -3.34) | -0.80 (-1.86, 3.45) | -3.36**(-4.84, -1.87) | |||||
| % Fat | -1.56**(-0.50, -0.35) | -2.66**(-0.61, -1.92) | 0.92 (-0.83, 2.66) | -1.97**(-2.94, -0.99) | |||||
All models were adjusted for age in years, race/ethnicity, calcium supplement intake, smoking status, alcohol drinking, milk consumption, and at least 15 min sun exposure a day, plus postmenopausal in females
Note: BMI = Body mass index; Fat mass = whole body fat mass; % Fat = percent of body fat
Regular exercise: “no regular exercise” as the reference group; b = regression parameter estimates
* < 0.05. ** < 0.01 *** < 0.001