Table 1.
Sociodemographic information of the school sample
| N | % | |
|---|---|---|
| Total sample | 3446 | 100 |
| Sex | ||
| Males | 1540 | 44.7 |
| Females | 1906 | 55.3 |
| School grade | ||
| 5th | 527 | 15.3 |
| 7th | 875 | 24.4 |
| 9th | 1090 | 31.6 |
| 11th | 954 | 27.7 |
| Socioeconomic statusa | ||
| Low | 772 | 22.4 |
| Medium | 1767 | 51.3 |
| High | 790 | 22.9 |
| Unknown | 117 | 3.4 |
| Family constellationb | ||
| Both biological parents | 2477 | 71.9 |
| Single parent | 554 | 16.1 |
| Patchwork | 305 | 8.9 |
| Unknown | 110 | 3.2 |
| Regionc | ||
| Urban | 1981 | 57.5 |
| Rural | 1418 | 41.1 |
| Unknown | 47 | 1.4 |
| Migration backgroundd | ||
| No | 2519 | 73.1 |
| Yes | 866 | 25.1 |
| Unknown | 61 | 1.8 |
aBased on Family Affluence Scale II (score range: 0–13); categories based on percentiles: low (< 25. perc.), medium (25. < perc. < 75. perc.), and high (> 75. perc.)
bIn which type of family that the adolescent lives
cUrban area (> 10.000 inhabitants); rural area (< 10.000 inhabitants)
dMigration background defined as follows: either adolescents or a parent born in a foreign country