Table 1. Characteristics of the children and adolescents, all and stratified by grade and sex.
| Fifth grade | Eighth grade | ||||
|---|---|---|---|---|---|
| All | Boys | Girls | Boys | Girls | |
| (n = 121) | (n = 40) | (n = 38) | (n = 27) | (n = 16) | |
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | |
| Age (years) | 12.1 ± 1.5 | 11.0 ± 0.2 | 11.0 ± 0.2 | 14.0 ± 0.0 | 14.1 ± 0.3 |
| isoBMI (kg/m2) | 19.4 ± 3.9a | 18.6 ± 3.8b | 19.2 ± 4.3c | 19.7 ± 3.6d | 21.6 ± 3.0e |
| isoBMI category | n (%) | n (%) | n (%) | n (%) | n (%) |
| Normal weight | 76 (82.6) | 25 (83.3) | 22 (81.5) | 19 (82.6) | 10 (83.3) |
| Overweight | 10 (10.9) | 3 (10.0) | 2 (7.4) | 3 (13.0) | 2 (16.7) |
| Obese | 6 (6.5) | 2 (6.7) | 3 (11.1) | 1 (4.4) | 0 (0.0) |
| Kid- and Kiddo KINDL HRQoL | Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD |
| Physical well-being | 31.3 ± 10.9 | 30.9 ± 11.2 | 33.8 ± 11.5 | 26.7 ± 9.3 | 33.6 ± 9.4 |
| Emotional well-being | 32.6 ± 8.6 | 32.7 ± 7.5 | 34.5 ± 8.4 | 30.0 ± 10.3 | 32.0 ± 8.5 |
| Self-esteem | 62.2 ± 23.5 | 57.1 ± 24.3 | 59.5 ± 21.0 | 70.9 ± 24.0 | 66.4 ± 23.4 |
| Family | 47.5 ± 9.4 | 45.6 ± 11.9 | 47.1 ± 7.9 | 48.6 ± 7.4 | 51.2 ± 8.0 |
| Friends | 60.9 ± 14.2 | 56.3 ± 18.2 | 62.5 ± 11.1 | 63.7 ± 10.8 | 63.3 ± 13.5 |
| Everyday functioning in school | 42.9 ±13.2 | 37.3 ± 14.8 | 44.4 ± 9.5 | 48.1 ± 13.1 | 44.1 ± 13.2 |
| Sleep | |||||
| Wake up time (hh:mm) | 06:36 ± 00:28 | 06:38 ± 00:31 | 06:27 ± 00:26 | 06:46 ± 00:28 | 06:34 ± 00:19 |
| Bed time (hh:mm) | 21:54 ± 00:47 | 21:43 ± 00:46 | 21:28 ± 00:32 | 22:25 ± 00:43 | 22:26 ± 00:41 |
| Sleep time (h) | 8.7 ± 0.81 | 8.9 ± 0.9 | 9.0 ± 0.6 | 8.3 ± 0.6 | 8.1 ± 0.8 |
BMI = Body Mass Index, HRQoL = Health-related quality of life.
an = 92,
bn = 30,
cn = 19,
dn = 23,
en = 12.