Table 1.
Descriptive statistics for variables at the child level (level 1). MVPA, moderate-to-vigorous physical activity; BMI, Body Mass Index; SES, socioeconomic status; PHV, peak height velocity.
| Variables | Child-Level Variables (Mean ± SD or Percentage) | |||
|---|---|---|---|---|
| Boys (n = 215) | Girls (n = 284) | Total (n = 499) | ||
| MVPA (min·day−1) | 67.81 ± 23.75 * | 46.82 ± 14.77 | 55.86 ± 21.79 | |
| Sedentary time (min·day−1) | 544.01 ± 60.98 * | 563.70 ± 53.78 | 555.21 ± 57.76 | |
| BMI (kg·m−2) | 19.24 ± 3.29 | 19.32 ± 3.37 | 19.28 ± 3.33 | |
| Maturity Offset (years to PHV) | −2.77 ± 0.42 * | −1.24 ± 0.51 | −1.90 ± 0.90 | |
| Sleep time (h·day−1) | 8.18 ± 0.86 * | 8.34 ± 0.84 | 8.27 ± 0.85 | |
| Wear time (h·day−1) | 15.32 ± 0.84 * | 15.16 ± 0.71 | 15.23 ± 0.77 | |
| Number of siblings | 0.97 ± 0.79 | 0.98 ± 0.86 | 0.97 ± 0.83 | |
| BMI (classification) | ||||
| Normal weight | 51.6% | 59.2% | 55.9% | |
| Overweight/obese | 48.4% | 40.8% | 44.1% | |
| SES | ||||
| <€6000 | 14.9% | 22.2% | 19.0% | |
| €6000–€11,999 | 32.6% | 28.9% | 30.5% | |
| €12,000–€17,999 | 20.0% | 17.3% | 18.4% | |
| €18,000–€23,999 | 11.2% | 9.5% | 10.2% | |
| €24,000–€29,999 | 7.9% | 7.4% | 7.6% | |
| €30,000–€35,999 | 5.1% | 5.6% | 5.4% | |
| €36,000–€41,999 | 2.8% | 3.9% | 3.4% | |
| ≥42,000 | 5.6% | 5.3% | 5.4% | |
| Season | ||||
| Spring | 22.8% | 20.4% | 21.4% | |
| Autumn | 34.0% | 31.0% | 32.3% | |
| Winter | 43.3% | 48.6% | 46.3% | |
* p < 0.05.