Table 1.
Sample characteristics.
| Variables | TOTAL | BOYS | GIRLS | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AGE | 8–12 (N = 366) |
13–14 (N = 130) |
8–14 (N = 496) |
p | 8–12 (N = 200) |
13–14 (N = 74) |
8–14 (N = 274) |
p * | 8–12 (N = 166) |
13–14 (N = 56) |
8–14 (N = 222) |
p * | p ** |
| Median (IR) | 10 (2) | 14 (1) | 11 (4) | n/a | 10 (2) | 14 (1) | 11 (4) | n/a | 10 (2) | 14 (1) | 11 (4) | n/a | 0.763 |
| Mean (SD) | 9.83 (1.38) | 13.56 (0.49) | 10.81 (2.04) | 9.82 (1.35) | 13.57 (0.49) | 10.83 (2.04) | 9.84 (1.41) | 13.55 (0.50) | 10.77 (2.04) | ||||
| PA | |||||||||||||
| Median (IR) | 3 (2) | 3 (2) | 3 (2) | 0.113 | 3 (2) | 3 (1) | 3 (2) | 0.068 | 3 (2) | 3 (2) | 3 (2) | 0.768 | 0.005 |
| Mean (SD) | 2.83 (1.03) | 2.98 (1.02) | 2.87 (1.03) | 2.93 (0.99) | 3.16 (0.95) | 2.99 (0.98) | 2.70 (1.07) | 2.75 (1.08) | 2.72 (1.15) | ||||
| KS9 | |||||||||||||
| Median (IR) | 4.69 (0.56) | 4.44 (0.67) | 4.56 (0.61) | 0.034 | 4.61 (0.56) | 4.44 (0.78) | 4.56 (0.67) | 0.027 | 4.67 (0.56) | 4.56 (0.56) | 4.56 (0.56) | 0.501 | 0.081 |
| Mean (SD) | 4.54 (0.39) | 4.44 (0.44) | 4.52 (0.41) | 4.52 (0.41) | 4.37 (0.47) | 4.48 (0.43) | 4.57 (0.36) | 4.53 (0.39) | 4.56 (0.36) | ||||
| MAPPING CHU9D | |||||||||||||
| Median (IR) | 0.78 (0.08) | 0.77 (0.09) | 0.78 (0.08) | 0.313 | 0.77 (0.10) | 0.76 (0.10) | 0.77 (0.10) | 0.903 | 0.80 (0.07) | 0.78 (0.09) | 0.80 (0.08) | 0.185 | 0.014 |
| Mean (SD) | 0.78 (0.06) | 0.77 (0.06) | 0.78 (0.06) | 0.77 (0.07) | 0.77 (0.06) | 0.77 (0.06) | 0.79 (0.06) | 0.77 (0.05) | 0.78 (0.06) | ||||
* The difference between boys and girls aged 8–12 and 13–14 years is noted, performing a non-parametric test for independent variables obtaining the p of the Mann–Whitney U test for p = 0.05. ** The difference between boys and girls is indicated, performing a non-parametric test for independent variables obtaining the p of Mann–Whitney’s U test for p = 0.05; n/a = not applicable. AGE: age measured in years. PA: physical activity frequency (values 1–4). KS9: derived variable for the HRQoL (values 1–5). MAPPING CHU9D: derived variable that estimates the HRQoL (values 0–1).