Table 4 Results from fully-adjusted multivariable multilevel linear regressions for changes in sedentary, moderate and vigorous physical activity (PA), during school time (9-15h) and travel time (8–9, 15-16h)*
Time period | Predictors of activity intensity change | β Coefficient | 95% CI | p-value | ICC |
|---|---|---|---|---|---|
School time (9-15h) | Sedentary time change | 0.090+++ | |||
Constant | 18.95 | 3.76 – 34.13 | 0.014 | ||
Morning break length >15 minutes (y/n)b | −2.52 | −4.00 - -1.04 | 0.001 | ||
Lunch break length (minutes)b | −0.08 | −0.16 - -0.00 | 0.037 | ||
Provide health promotion information (y/n)b | 1.93 | 0.72 – 3.15 | 0.002 | ||
Hours of physical education b | 1.27 | 0.23 – 2.31 | 0.016 | ||
Existence of play equipment (y/n)b | 3.29 | 0.51 – 6.07 | 0.020 | ||
Existence of sports equipment (y/n)b | 7.15 | 2.81 – 11.49 | 0.001 | ||
Moderate activity change | 0.135+++ | ||||
Constant | 5.38 | 1.49 – 9.27 | 0.007 | ||
Morning break length >15 minutes (y/n)b | 0.68 | 0.23 – 1.13 | 0.003 | ||
Lunch break length (minutes) b | 0.03 | 0.00 – 0.05 | 0.018 | ||
Existence of changing facilities (y/n)b | −0.33 | −0.64 - -0.02 | 0.035 | ||
Existence of sports equipment (y/n)b | −2.71 | −4.10 - -1.33 | <0.001 | ||
Vigorous activity change | 0.071+++ | ||||
Constant | 7.62 | 4.48 – 10.77 | <0.001 | ||
Morning break length >15 minutes (y/n)b | 0.52 | 0.19 – 0.85 | 0.002 | ||
Provide health promotion information (y/n)b | −0.38 | −0.66 - -0.11 | 0.006 | ||
Existence of sports equipment (y/n)b | −2.15 | −3.13 - -1.17 | <0.001 | ||
Travel time (8–9, 15-16h) | Sedentary time change | 0.002 | |||
Constant | 37.10 | 19.42 – 54.79 | <0.001 | ||
Number of year 4 children in 2006 a | −0.02 | −0.03 - -0.00 | 0.030 | ||
Provide physical activity information (y/n)b | −2.02 | −3.81 - -0.22 | 0.027 | ||
Provide health promotion information (y/n)b | 2.15 | 0.61 – 3.68 | 0.006 | ||
Extracurricular PA available weekends (y/n)b | −1.35 | −2.47 - -0.23 | 0.018 | ||
Existence of safe places to cross roads (y/n)b | −1.61 | −2.73 - -0.49 | 0.005 | ||
Moderate activity change | |||||
Constant | −2.76 | −13.20 – 7.67 | 0.604 | <0.001 | |
Number of year 4 children in 2006 a | 0.02 | 0.01 – 0.03 | <0.001 | ||
Provide physical activity information (y/n)b | 1.15 | 0.10 – 2.21 | 0.033 | ||
Provide health promotion information (y/n)b | −0.93 | −1.84 - -0.03 | 0.043 | ||
Extracurricular PA available weekends (y/n)b | 0.68 | 0.02 – 1.34 | 0.044 | ||
Existence of a lollypop person (y/n)b | 0.68 | 0.04 – 1.33 | 0.039 | ||
Existence of safe places to cross roads (y/n)b | 0.83 | 0.12 – 1.54 | 0.022 | ||
Vigorous activity change | 0.016 | ||||
Constant | 5.63 | 0.72 – 10.54 | 0.025 | ||
Number of year 4 children in 2006 a | 0.01 | 0.00 – 0.01 | 0.044 | ||
Existence of safe places to cross roads (y/n)b | 0.56 | 0.22 – 0.90 | 0.001 |