Table 1 Sociodemographic characteristics of the adolescents surveyed
| Â | Number | in % |
|---|---|---|
Age (years, Mean, SD) | 308 | 15.5 (1.2) |
Female sex | 337 | 48.1 |
Family situation | 342 | Â |
 With biological parents |  | 46.5 |
 With mother only |  | 23.1 |
 With mother and her partner |  | 16.1 |
 In an institution |  | 5.6 |
 With father (and his partner) |  | 5.5 |
 Other |  | 3.7 |
Migration background | 336 | 17.0 |
Maternal employment status | 327 | Â |
 Full time |  | 40.4 |
 Part time |  | 30.0 |
 Not employed |  | 19.6 |
 Seeking employment |  | 8.3 |
 Other |  | 1.7 |
Paternal employment status | 299 | Â |
 Full time |  | 78.6 |
 Part time |  | 10.0 |
 Not employed |  | 5.7 |
 Seeking employment |  | 5.0 |
 Other |  | 0.7 |