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Behav Res Ther. 2007 Mar;45(3):577-89. Epub 2006 Jul 11.

An open clinical trial of cognitive-behaviour therapy in children and adolescents with obsessive-compulsive disorder administered in regular outpatient clinics.

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  • 1Department of Neuroscience, Center for Child and Adolescent Psychiatry, Norwegian University of Science and Technology, MTFS, 7489 Trondheim, Norway.


The aim of the present study was to examine the effectiveness of manual-guided cognitive-behaviour therapy (CBT) for childhood obsessive-compulsive disorder (OCD) administered within three regular, i.e., non-academic, Norwegian outpatient child psychiatric clinics.


A total of 28 youngsters, aged 8-17 with primary OCD entered the study. Assessment at intake included Norwegian versions of the K-SADS-PL, Children's Yale-Brown Obsessive Compulsive Scale (CY-BOCS), and a measure of OCD-specific functional impairment (Child OCD Impact Scale (COIS)). Therapy consisted of 12 manual-guided sessions with combined individual and family CBT-based interventions and was conducted by psychologists and physicians under training and supervision. Outcome was assessed after treatment and at 3- and 6-month follow-ups by means of the CY-BOCS, the Clinical Global Impression (CGI) and the CGI-Improvement scales, and the COIS.


Twenty-four youngsters (86%) completed treatment and were available for the follow-up assessments. Significant improvements were found on all outcome measures after treatment, including a mean symptom reduction on the CY-BOCS of 60.6%, increasing to 68.8% at the 6-month follow-up. Estimates of within-group effect sizes showed strong effects of treatment.


The results of the present study suggest that manual-guided CBT for childhood OCD can be successfully implemented in non-academic community child psychiatric settings with outcomes in accordance with previous findings from highly specialised university clinics.

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