Table 4.
Sedentary time and physical activity: univariate and multivariate associations with low cardiorespiratory fitness in English schoolchildren.
| Univariate | OR (95%CI) | p-Value | OR (95%CI) | p-Value | OR (95%CI) | p-Value |
|---|---|---|---|---|---|---|
| Boys | ||||||
| Weekday (min) | 1.001 | |||||
| (1.0003–1.0020) | p = 0.006 | |||||
| Weekend (min) | 1.003 | |||||
| (1.002–1.004) | p < 0.001 | |||||
| Physical activity (PAQ score) |
0.148 | |||||
| (0.095–0.231) | p < 0.001 | |||||
| School (clusters) |
0.244 | 0.312 | 0.192 | |||
| (0.038–1.542) | (0.058–1.682) | (0.035–1.044) | ||||
| Girls | ||||||
| Weekday (min) | 1.001 | |||||
| (1.0004–1.004) | p = 0.009 | |||||
| Weekend (min) | 1.003 | |||||
| (1.002–1.005) | p < 0.001 | |||||
| Physical Activity (PAQ 1–5) |
0.149 | |||||
| (0.142–0.375) | p < 0.001 | |||||
| School (clusters) |
0.173 | 0.226 | 0.174 | |||
| (0.037–0.816) | (0.051–1.024) | (0.034–0.883) | ||||
| Multivariate | Model1 |
Model2 |
Model3 |
|||
|---|---|---|---|---|---|---|
| OR (95%CI) | p-Value | OR (95%CI) | p-Value | OR (95%CI) | p-Value | |
| Boys | ||||||
| Weekday (min) | 1.0004 | 1.0003 | 1.0003 | |||
| (0.999–1.001) | p = 0.376 | (0.999–1.001) | p = 0.406 | (0.998–1.001) | p = 0.953 | |
| Weekend (min) | 1.003 | 1.004 | 1.002 | |||
| (1.002–1.004) | p < 0.001 | (1.002–1.005) | p < 0.001 | (1.001–1.004) | p = 0.006 | |
| Age (years) | 0.702 | 0.723 | ||||
| (0.574–0.859) | p < 0.001 | (0.581–0.899) | p = 0.004 | |||
| Deprivation | 0.026 | 1.007 | ||||
| (0.979–1.082) | p = 0.254 | (0.953–1.061) | p = 0.793 | |||
| Physical activity (PAQ 1–5) |
0.044 | |||||
| (0.113–0.290) | p < 0.001 | |||||
| School (clusters) |
0.316 | 0.364 | 0.596 | |||
| (0.060–1.67) | (0.109–2.12) | (0.127–2.802) | ||||
| Girls | ||||||
| Sedentary time | 1.001 | 1.0005 | 1.001 | |||
| Weekday (min) | (0.999–1.002) | p = 0.120 | (0.999–1.002) | p = 0.429 | (0.999–1.002) | p = 0.095 |
| Sedentary time | 1.003 | 1.0003 | 1.001 | |||
| Weekend (min) | (1.001–1.005) | p < 0.001 | (1.0002–1.005) | p = 0.005 | (.997–1.002) | p = 0.489 |
| Age (years) | 1.457 | 1.405 | ||||
| (1.172–1.811) | p < 0.001 | (1.119–1.76) | p = 0.003 | |||
| Deprivation (EID) | .947 | 0.962 | ||||
| (0.891–1.006) | p = 0.079 | (0.902–1.026) | p = 0.244 | |||
| Physical activity (PAQ score, 1–5) |
0.274 | |||||
| (0.158–.0477) | p < 0.001 | |||||
| School (clusters) |
0.206 | 0.152 | 0.134 | |||
| (0.044–0.951) | (0.026–1.018) | (0.0173–1.039) | ||||
Legend: Mixed multilevel regression coefficients reported as Odd Ratios (OR) and 95% Confidence Intervals (95%CI). ORs are for likelihood of Low cardiorespiratory fitness. Low fitness defined using cut-offs of Bell et al. (1986). Analysis performed in STATA Version 14.0 with ‘School’ as a random factor. All data collected in summer term (May–June) 2014 at n = 6 schools, Essex, UK.