Table 4.
BMI |
Obese vs. overweight and normal weight |
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---|---|---|---|---|---|---|
B (95% CI) | β | p value | B (SE or 95% CI) | OR (95% CI) | p value | |
Intercept | 28.11 | - | - | −0.71 | 0.49 | - |
Initial models | ||||||
Activity supportiveness indexb |
−0.23 (−0.43, −0.02) | −0.09 | .031 | −0.09 (0.05) | 0.91 (0.84, 1.00) | .053 |
Mediation models (adjusted for walking) |
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Walking MET-hours/week | −0.14 (−0.20, −0.08) | −0.16 | <.001 | −0.06 (0.02) | 0.94 (0.92, 0.97) | <.001 |
Activity supportiveness index |
−0.20 (−0.41, 0) | −0.08 | .052 | −0.08 (0.05) | 0.92 (0.84, 1.01) | .082 |
Mediation coefficient | −0.03 (−0.07, 0) | - | .076 | −0.01 (−0.03, 0) | - | .069 |
Percent attenuation | 11% | - | - | 8% | - | - |
Waist circumference (cm) |
Waist circumference, ≥ 88 vs < 88 (cm) |
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B (95% CI) | β | p value | B (SE or 95% CI) | OR (95% CI) | p value | |
Intercept | 87.46 | - | - | −0.31 | 0.74 | - |
Initial models | ||||||
Activity supportiveness indexb |
−0.25 (−0.76, 0.25) | −0.04 | .326 | −0.03 (0.04) | 0.97 (0.89, 1.05) | .450 |
Mediation models (adjusted for walking) |
||||||
Walking MET-hours/week | −0.34 (−0.48, −0.19) | −0.16 | <.001 | −0.05 (0.01) | 0.95 (0.92, 0.97) | <.001 |
Activity supportiveness index |
−0.19 (−0.69, 0.31) | −0.03 | .446 | −0.03 (0.04) | 0.98 (0.90, 1.06) | .555 |
Mediation coefficient | −0.08 (−0.17, 0.02) | - | .112 | −0.01 (−0.03, 0) | - | .069 |
Percent attenuation | 23% | - | - | 22% | - | - |
All models were adjusted for participant age, race/ethnicity, education, marital status, neighborhood income, and intervention group membership, all of which were mean centered
The activity supportiveness index was calculated as the sum of z scores for residential density, street connectivity, land use mix, and number of parks