Page 31 - Age of onset of disruptive behavior of residentially treated adolescents -Sjoukje de Boer

demonstrated that orthopsychiatric treatment is effective (Boon & De Boer, 2007), so
when inpatients could be assigned to the LCP group, this would indicate that they are treatable and for that reason the term life-course-persistent is too pessimistic. The 2 information about disruptive behaviors used to assign the patients to the LCP group is
taken from notes written down in their YHC files when the children were about five
years of age. Due to the complexity of the disruptive behaviors and psychiatric disorders of the sample, it was expected that a relatively high prevalence of LCP would
be found.
Method
Setting
Present study was conducted at De Fjord, an orthopsychiatric and forensic psychiatric youth facility near Rotterdam. In The Netherlands, orthopsychiatric facilities offer treatment to adolescents and young adults who have psychiatric disorders combined with severe disruptive behavior. Besides day treatment and outpatient treatment, De Fjord offers a specialized treatment program to 32 adolescent inpatients. The treatment program consists of various therapies and training activities, for instance, cognitive behavioral therapy, psycho-motor therapy, art therapy, drama therapy, family therapy, social skills training, aggression regulation training, job training, and education. A cognitive-behavioral treatment model is applied with an emphasis on enhancement of social competence (Bartels, 2001) extended by elements of the scheme-based therapy (Young, Klosko, & Weishaar, 2004), as developed by Young (Young, 1990). The facility offers treatment to both boys and girls, but boys are the majority.
Sample/participants
The orthopsychiatric sample
Of the 49 inpatients that agreed to participate, only 24 health care files could be used. Of 13 patients (27%) the files could not be traced and of 12 patients (24%) the information about the examination in the second grade was missing. In the present study, the orthopsychiatric sample of which the YHC information could be used was comprised of 10 female and 14 male inpatients, born between 1983 and 1992 that
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