Table 1.
Descriptive characteristics of participants.
| Total Sample (N = 421) Mean ± SD | Boy (N = 216) Mean ± SD | Girls (N = 199) Mean ± SD | p-Value | |
|---|---|---|---|---|
| Age (years) | 4.62 ± 0.87 | 4.55 ± 0.85 | 4.7 ± 0.89 | 0.070 |
| BMI (kg/m2) | 15.65 ± 1.28 | 15.77 ±1.29 | 15.52 ± 1.26 | 0.039 |
| BMI z-scores a | 0.14 ± 0.90 | 0.22 ± 0.96 | 0.05 ± 0.81 | 0.041 |
| Moderate to vigorous physical activity (min/day) | 98.65 ± 29.02 | 106.82 ± 28.92 | 90.31 ± 26.88 | 0.001 |
| Total physical activity (min/day) | 510.24 ± 104.72 | 517.37 ± 111.28 | 502.73 ± 97.04 | 0.152 |
| Screen time (min/day) | 118.59 ± 72.47 | 116.08 ± 66.67 | 120.91 ± 77.56 | 0.496 |
| Sleep duration (h/day) b | 10.83 ±1.64 | 10.80 ±1.60 | 10.87 ± 1.67 | 0.713 |
Abbreviations: BMI body mass index, SD standard deviation. a BMI z-scores were calculated according to the World Health Organization (WHO) growth standards [27]. b Including nap(s) time.