Table 1.
General characteristics of study participants (n = 7988).
| Overweight and Obesity | p | ||||
|---|---|---|---|---|---|
| No (6391) | Yes (1597) | ||||
| Age (years, SD) | 12.1 | 3.3 | 11.2 | 3.2 | <0.01 |
| 6–11 years (n, %) | 3100 | 48.5 | 981 | 61.4 | |
| 12–17 years (n, %) | 3291 | 51.5 | 616 | 38.6 | |
| Sex (n, %) | <0.01 | ||||
| male | 3051 | 47.8 | 948 | 59.4 | |
| female | 3340 | 52.3 | 649 | 40.6 | |
| BMI (mean, SD) | 17.5 | 2.4 | 23.0 | 4.0 | <0.01 |
| BMI (media, IQR) | 17.2 | 15.6, 19.2 | 22.7 | 20.1, 25.2 | |
| Household income (n, %) | >0.05 | ||||
| Low | 1852 | 29.0 | 425 | 26.7 | |
| Middle | 2243 | 35.1 | 546 | 34.2 | |
| high | 842 | 13.2 | 242 | 15.2 | |
| unknown | 1453 | 22.7 | 382 | 24.0 | |
| Housework time/d (min, mean, SD) | 16.4 | 18.0 | 14.5 | 17.0 | <0.01 |
| Sedentary time/d (h, media, IQR) | 3.0 | 2.0, 4.0 | 3.0 | 2.0, 3.5 | <0.01 |
| Physical activity time/d (min, mean, SD) | 63.0 | 36.4 | 62.2 | 33.1 | >0.05 |
| Exercise in spare time (n, %) | <0.05 | ||||
| Yes | 3859 | 60.4 | 919 | 57.6 | |
| No | 2526 | 39.6 | 677 | 42.4 | |
| Traffic tools (n, %) | <0.01 | ||||
| Walk | 2853 | 44.7 | 703 | 44.1 | |
| Ride | 925 | 14.5 | 189 | 11.9 | |
| By bus | 1061 | 16.6 | 235 | 14.7 | |
| By car | 1366 | 21.4 | 443 | 27.8 | |
| Other | 185 | 2.9 | 25 | 1.6 | |
BMI: Body mass index; Data are shown as number (n, %) for categorical variables; and shown as mean and standard deviation (SD) for continuous variables; IQR: interquartile range, d: day, h: hour, min: minutes.