| M (SD) | Range |
---|---|---|
Age at admission in years | 16.9 (1.8) | 14–23 |
IQ | 93.9 (12.0) | 63–127 |
 | n | % |
---|---|---|
Judicial measure | ||
 Criminal law | 129 | 47.8 |
 Civil law | 118 | 43.7 |
 Voluntary | 23 | 8.5 |
Previous delinquent behavioura | ||
 No conviction | 51 | 18.9 |
 Drug offence | 12 | 4.4 |
 Vandalism (property) | 83 | 30.7 |
 Property offence without violence | 122 | 45.2 |
 Moderate violent offence | 135 | 50.0 |
 Violent property offence | 53 | 19.6 |
 Serious violent offence | 21 | 7.8 |
 Sex offence | 36 | 13.3 |
 Manslaughter | 9 | 3.3 |
 Arson | 2 | 0.7 |
 Murder | 7 | 2.6 |
Axis-I classification of DSM-IV-TRb,c | ||
 Disruptive behaviour disorder | 132 | 48.9 |
 Autism spectrum disorder | 115 | 42.6 |
 Attention deficit/hyperactivity disorder | 63 | 23.3 |
 Substance disorder | 61 | 22.6 |
 Reactive attachment disorder | 34 | 12.6 |
 Schizophrenia or other psychotic disorder | 25 | 9.3 |
 Mood disorder | 23 | 8.5 |
 Anxiety disorder | 22 | 8.1 |
 Other disorder usually first diagnosed in infancy, childhood, or adolescence | 19 | 7.0 |
 Other disordersd | 18 | 6.7 |
Axis-II classification of DSM-IV-TRb | ||
 Personality disorder | 16 | 5.9 |
 Mental retardation | 16 | 5.9 |