| Total group (N = 46) | Class 1 (n = 20) | Class 2 (n = 9) | Class 3 (n = 12) | Class 4 (n = 5) | Χ2/F | p-value |
---|---|---|---|---|---|---|---|
M (SD) | M (SD) | M (SD) | M (SD) | M (SD) | |||
Length of stay at the hospital (in months) | 20.2 (11.8) | 19.6 (11.4) | 26.1 (16.7) | 19.1 (7.9) | 14.8 (10.2) | F = 1.169 | .333 |
Time after discharge (in months) | 39.2 (16.7) | 39.7 (18.2) | 38.2 (17.5) | 35.4 (13.2) | 47.6 (18.7) | Χ2 = 2.640 | .451 |
Age at admission | 16.8 (1.6) | 16.4 (1.3) | 18.1 (2.0) | 16.7 (1.7) | 16.8 (.8) | Χ2 = 5.321 | .150 |
Age at the time of the FU-study | 21.9 (2.4) | 21.4 (1.9) | 23.7 (3.2) | 21.3 (2.2) | 22.0 (2.4) | F = 2.393 | .082 |
 | n (%) | n (%) | n (%) | n (%) | n (%) |  |  |
---|---|---|---|---|---|---|---|
Judicial measure | Χ2 = 9.784 | .084 | |||||
 Criminal law | 21 (46%) | 5 (25%)↓ | 7 (78%)↑ | 7 (58%) | 2 (40%) |  |  |
 Civil law | 21 (46%) | 13 (65%)↑ | 2 (22%) | 3 (25%) | 3 (60%) |  |  |
 Voluntary | 4 (9%) | 2 (10%) | 0 (0%) | 2 (17%) | 0 (0%) |  |  |
Immigrants (1st or 2nd generation)a (n = 41) | 15 (37%) | 6 (33%) | 6 (67%)↑ | 1 (11%) | 2 (40%) | Χ2 = 5.916 | .104 |
No previous convictions | 8 (17%) | 3 (15%) | 1 (11%) | 3 (25%) | 1 (20%) | Χ2 = 1.130 | .849 |
Early onset of problem behaviour (< 12 years) | 27 (59%) | 9 (45%) | 7 (78%) | 7 (58%) | 4 (80%) | Χ2 = 3.591 | .319 |
Psychopathology at dischargeb | |||||||
 Disruptive behaviour disorder | 17 (37%) | 7 (35%) | 6 (67%)↑ | 4 (33%) | 0 (0%) | Χ2 = 5.992 | .103 |
 Autism spectrum disorder | 20 (44%) | 10 (50%) | 1 (11%)↓ | 9 (75%)↑ | 0 (0%)↓ | Χ2 = 12.513 | .004 |
 Attention deficit/hyperactivity disorder | 18 (39%) | 10 (50%) | 1 (11%) | 5 (42%) | 2 (40%) | Χ2 = 4.064 | .269 |
 Substance disorder | 11 (24%) | 7 (35%) | 4 (44%) | 0 (0%)↓ | 0 (0%) | Χ2 = 8.579 | .022 |
 Reactive attachment disorder | 10 (22%) | 2 (10%) | 5 (56%)↑ | 0 (0%)↓ | 3 (60%)↑ | Χ2 = 13.826 | .001 |
Less restrictive discharge placementc (n = 44) | 34 (77%) | 17 (85%) | 5 (63%) | 8 (73%) | 4 (80%) | Χ2 = 2.111 | .615 |
Completerd | 23 (50%) | 9 (45%) | 1 (11%)↓ | 10 (83%)↑ | 3 (60%) | Χ2 = 11.223 | .008 |