Table 2 Sample characteristics.*
Age in years | Â | 12-15 | 16-18 | ||
|---|---|---|---|---|---|
| Â | Total sample | Male | Female | Male | Female |
N not weighted | 10 019 (100) | 2880 (46.9) | 3260 (53.1) | 1680 (43.3) | 2199 (56.7) |
N weighted** | 10 020 (100) | 2927 (51.0) | 2808 (49.0) | 2192 (51.2) | 2093 (48.8) |
Ethnic groups, non-western*** | 368 (3.7) | 113 (3.9) | 116 (4.2) | 69 (3.1) | 70 (3.4) |
School, VMBO**** | 2274 (22.7) | 974 (42.6) | 924 (40.9) | 215 (17.3) | 161 (14.0) |
Family, not living with both parents | 1580 (15.8) | 428 (15.3) | 466 (17.2) | 352 (17.1) | 334 (17.5) |
Parents, relationship below average | 1866 (18.6) | 434 (14.9) | 484 (17.3) | 454 (20.8) | 494 (23.6) |
Problematic life-events | 2093 (20.9) | 455 (15.6) | 669 (23.9) | 403 (18.5) | 566 (27.2) |
ADHD | 219 (2.2) | 106 (3.8) | 18 (0.7) | 63 (3.0) | 32 (1.6) |
Binge drinking previous 4 wks | 3393 (33.9) | 372 (12.9) | 339 (12.3) | 1506 (68.7) | 1176 (56.8) |
Binge drinking previous 4 wks > = 3 times | 1607 (16.0) | 97 (3.3) | 90 (3.2) | 904 (41.8) | 516 (24.9) |
Soft drugs previous 4 wks | 398 (4.0) | 45 (1.6) | 34 (1.3) | 203 (9.4) | 116 (5.6) |
Alcohol and drugs together | 342 (3.4) | 37 (1.3) | 25 (0.9) | 183 (8.4) | 97 (4.7) |
Mental health, moderate or poor | 1389 (13.9) | 247 (8.6) | 418 (15.0) | 259 (11.9) | 465 (22.5) |