Table 2 Results from multi-level regression models examining associations between yard characteristics and physical activity and outdoor play. Yard size β divided by 10 is minutes associated with a 10% increase in yard size. Greenness β is minutes associated with a 0.1 increase in NDVI
Yard Size a (log(m2)) | Greennessa,b (rescaled to 0–10) | |||||
|---|---|---|---|---|---|---|
n | Mean (SD) | β (95% CI) | p | β (95% CI) | p | |
Accelerometer measured physical activity | ||||||
Accelerometer (mins/day) Weekdays | ||||||
Sedentary behaviour | 371 | 414.3 (69.7) | -2.4 (−6.2, 11.0) | 0.58 | 0.9 (− 6.0, 7.8) | 0.95 |
Light physical activity | 371 | 308.1 (55.3) | 1.4 (−5.7, 8.5) | 0.70 | 0.5 (−5.3, 6.3) | 0.87 |
Moderate-to-vigorous physical activity | 371 | 98.1 (34.8) | -2.4 (−6.5, 1.7) | 0.25 | −1.4 (−4.7, 1.9) | 0.41 |
Total physical activity (LPA + MVPA) | 371 | 406.8 (72.6) | −1.3 (− 10.5, 7.9) | 0.79 | −0.3 (−7.5, 6.8) | 0.93 |
Weekends | ||||||
Sedentary behaviour | 371 | 416.0 (89.4) | 4.3 (−7.0, 15.6) | 0.46 | 1.4 (−7.8, 710.5) | 0.76 |
Light physical activity | 371 | 303.0 (63.0) | 1.2 (−6.6, 9.0) | 0.78 | 3.5 (−2.8, 9.8) | 0.27 |
Moderate-to-vigorous physical activity | 371 | 94.1 (467) | 0.1 (−5.7, 5.5) | 0.97 | −3.2 (−7.8, 1.3) | 0.16 |
Total physical activity (LPA + MVPA) | 371 | 397.3 (88.2) | 1.2 (−9.8, 12.1) | 0.83 | 1.1 (−7.4, 9.5) | 0.80 |
Parent reported outdoor play | ||||||
Minutes spent outdoors playing (daily) | 1535 | 96.4 (59.5) | 3.8 (1.0, 6.7) | 0.009 | −1.6 (−4.5, 1.2) | 0.26 |