Table 3.
Comparison of longitudinal models for average minutes of MVPA and sedentary time per day
| Boys (2510 boys, 4847 measurements) | Girls (2744 girls, 5481 measurements) | |||||
| Estimate | 95% CI | P value | Estimate | 95% CI | P value | |
| Average MVPA minutes per day | ||||||
| Baseline* (min) | 69.68 | (67.64 to 71.71) | <0.0005 | 47.52 | (46.13 to 48.90) | <0.0005 |
| Change with age (min/year) | −3.09 | (−3.578, to 2.61) | <0.0005 | −1.78 | (−2.10, to 1.45) | <0.0005 |
| Asthma† (min) | −1.24 | (−3.35 to 0.87) | 0.249 | −1.19 | (−2.81 to 0.43) | 0.150 |
| Eczema† (min) | −1.22 | (−3.62 to 1.17) | 0.316 | −0.87 | (−2.52 to 0.79) | 0.305 |
| Overweight† (min) | −8.05 | (−10.46, to 5.63) | <0.0005 | −2.33 | (−3.99, to 0.68) | 0.006 |
| Obese† (min) | −11.12 | (−13.57, to 8.68) | <0.0005 | −5.01 | (−6.78, to 3.25) | <0.0005 |
| Average sedentary minutes per day | ||||||
| Baseline* (min) | 346.64 | (341.19 to 352.08) | <0.0005 | 365.73 | (31.05 to 370.41) | <0.0005 |
| Change with age (min/year) | 28.10 | (26.94 to 29.26) | <0.0005 | 31.97 | (30.92 to 33.03) | <0.0005 |
| Asthma† (min) | −4.06 | (−9.84 to 1.73) | 0.169 | −6.45 | (−11.92 to 0.98) | 0.021 |
| Eczema† (min) | 2.16 | (−4.17 to 8.49) | 0.504 | 1.98 | (−3.54 to 7.50) | 0.482 |
| Overweight† (min) | 14.51 | (8.38 to 20.63) | <0.0005 | 12.63 | (7.14 to 18.12) | <0.0005 |
| Obese† (min) | 17.37 | (10.97 to 23.78) | <0.0005 | 15.19 | (9.28 to 21.09) | <0.0005 |
*Baseline represents the average number of minutes for a healthy individual at age 11 with mother’s highest education of O level (examination at age 16) and household social class of Managerial & Technical (II).
†Change from baseline if child has this health condition.
MVPA, moderate to vigorous intensity physical activity.