Table 1 Descriptive characteristics of total sample, children with short/medium sleep duration (primary and secondary sleep level; < 10 h, 8 min) and children with long sleep duration (tertiary sleep level; ≥ 10 h, 8 min)
|  | Missing values | Total sample (n = 308) | Short/medium Sleep Duration (n = 202) | Long Sleep Duration (n = 106) |
|---|---|---|---|---|
Gender (male); n (%) | 0 | 151 (49.0) | 106 (52.5) | 45 (42.5) |
Age (years)*; m ± SD | 0 | 7.1 ± 0.6 | 7.2 ± 0.6 | 6.9 ± 0.6 |
Height (cm); m ± SD | 1 | 123.6 ± 6.1 | 124.0 ± 6.1 | 122.7 ± 6.0 |
Weight (kg)*; m ± SD | 1 | 24.6 ± 4.8 | 25.0 ± 4.8 | 23.8 ± 4.7 |
BMI z-scores; m ± SD | 1 | 0.18 ± 1.11 | 0.25 ± 1.11 | 0.03 ± 1.10 |
Weight status | 13 | Â | ||
Overweight; n (%) | 13 | 36 (12.2) | 26 (13.5) | 10 (9.8) |
Obese; n (%) | 13 | 10 (3.4) | 6 (3.1) | 4 (3.9) |
Sleep duration (h:min/night)*; m ± SD | 0 | 9:58 (0:29) | 9:42 (0:19) | 10:29 (0:18) |
MVPA Guideline reached*; n (%) | 4 | 148 (48.7) | 105 (52.8) | 43 (41.0) |
Daily MVPA (h:min/day)*, m ± SD | 2 | 2:13 (0:58) | 2:18 (0:59) | 2:04 (0:55) |
TV viewing of more than 1 h/day*; n (%) | 41 | 150 (56.2) | 108 (63.2) | 42 (43.8) |
Tertiary parental education level; n (%) | 48 | 92 (35.4) | 59 (36.2) | 33 (34.0) |
Migration background*; n (%) | 41 | 71 (26.6) | 60 (35.7) | 11 (11.1) |