Table 1.
Description of the study sample.
| Study Population (n = 1215) | |||
|---|---|---|---|
| µ (SD) | Range | n (%) | |
| Age (years) | 11.32 (1.35) | 8.94–15.42 | |
| Sex | |||
| Male | 598 (49.2) | ||
| Female | 617 (50.8) | ||
| School type | |||
| Elementary school | 690 (56.8) | ||
| Lower secondary school | 178 (14.7) | ||
| Upper secondary school | 347 (28.6) | ||
| SES group | |||
| Low | 90 (10.7) | ||
| Medium | 467 (55.3) | ||
| High | 287 (34.0) | ||
| Missing | 371 | ||
| Migration background | |||
| Yes | 196 (19.6) | ||
| No | 804 (80.4) | ||
| Missing | 215 | ||
| BMI-SDS | −0.04 (1.08) | −3.58–2.99 | |
| BMI categorization | |||
| BMI-SDS < 1.28 | 1063 (87.8) | ||
| BMI-SDS ≥ 1.28 | 148 (12.2) | ||
| Missing | 4 | ||
| Parental overweight/obesity (biological parents) | |||
| Non | 276 (30.9) | ||
| Both | 180 (20.1) | ||
| Mother | 155 (31.7) | ||
| Father | 283 (17.3) | ||
| Missing | 321 | ||
µ: mean; SD: standard deviation; n: count; BMI: body mass index; SES: socio–economic status.