Table 4.
Boys (n = 618) – comparison of moderate-to-vigorous physical activity and time spent sedentary (minutes per day) between school and summer
| Timepoint | Est | (95CI) | Within a | Between Income to Poverty Groups | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| School | Summer | Interactions b | ||||||||||||||||
| Diff | (95CI) | Contrast | Diff | (95CI) | Diff | (95CI) | Diff | (95CI) | ||||||||||
| Moderate to Vigorous Physical Activity | ||||||||||||||||||
| Overall c | Summer | 65.8 | (63.2, | 68.3) | 9.1 (8.1, 10.2) | |||||||||||||
| School | 74.9 | (72.4, | 77.4) | |||||||||||||||
| Ratio of Income to Poverty Group d | ||||||||||||||||||
| Low-Income (≤ 2.0) | Summer | 66.0 | (62.5, | 69.5) | 8.3 (6.4, 10.1) | L v M | -1.7 | (-4.8, | 1.4) | − 4.3 | (-7.5, | -1.1) | NS | |||||
| School | 74.2 | (70.8, | 77.6) | L v H | 1.9 | (-1.5, | 5.4) | 1.6 | (-1.9, | 5.2) | NS | |||||||
| Middle-Income (2.0 to 3.0) | Summer | 61.7 | (58.3, | 65.0) | 10.2 (6.7, 13.7) | M v H | 3.6 | (0.8, | 6.4) | 5.9 | (3.1, | 8.8) | NS | |||||
| School | 72.5 | (69.2, | 75.8) | |||||||||||||||
| High-Income (> 3.0) | Summer | 67.6 | (64.2, | 71.0) | 8.6 (7.0, 10.1) | |||||||||||||
| School | 76.2 | (72.8, | 79.5) | |||||||||||||||
| Time Spent Sedentary | ||||||||||||||||||
| Overall c | Summer | 499.5 | (491.3, | 507.6) | -9.9 (-13.0, -6.9) | |||||||||||||
| School | 489.6 | (481.5, | 497.6) | |||||||||||||||
| Ratio of Income to Poverty Group d | ||||||||||||||||||
| Low-Income (≤ 2.0) | Summer | 502.3 | (492.0, | 512.6) | -10.4 (-16.0, -4.8) | L v M | -4.9 | (-14.1, | 4.4) | -4.1 | (-13.8, | 5.6) | NS | |||||
| School | 491.8 | (481.8, | 501.8) | L v H | -1.4 | (-11.7, | 8.9) | -3.2 | (-13.8, | 7.5) | NS | |||||||
| Middle-Income (2.0 to 3.0) | Summer | 498.2 | (488.2, | 508.1) | -11.2 (-17.1, -5.3) | M v H | 3.5 | (-4.9, | 11.8) | 0.9 | (-7.6, | 9.5) | NS | |||||
| School | 487.0 | (477.2, | 496.7) | |||||||||||||||
| High-Income (> 3.0) | Summer | 499.1 | (489.1, | 509.1) | -8.6 (-13.3, -4.0) | |||||||||||||
| School | 490.5 | (480.6, | 500.3) | |||||||||||||||
a Positive within values represent greater minutes per day during school compared to summer
b Income to Poverty Group – x – School vs. Summer interaction
c Controlling for age (years) and ratio of income to poverty
d Controlling for age (years)
GREYED values represent differences where the 95% confidence intervals do not include zero
Abbreviations: L = Low-Income; M = Middle-Income; H = High-Income