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Accueil veterinaires comportementalistes Veille bibliographique veterinaires comportementalistes Treatment of obsessive?compulsive disorder: Cognitive behavior therapy vs. exposure and response prevention

Treatment of obsessive?compulsive disorder: Cognitive behavior therapy vs. exposure and response prevention

Maureen L. Whittal, Dana S. Thordarson and Peter D. McLean

Revue : Behaviour Research and Therapy

Department of Psychiatry, University of British Columbia, Vancouver, BC, Canada V6T 2B5

Received 9 April 2003; revised 28 October 2004; accepted 4 November 2004. Available online 10 February 2005.



The efficacy of contemporary cognitive therapy for obsessive?compulsive disorder (OCD) has only recently been investigated. The current study compares exposure and response prevention (ERP) and cognitive behavior therapy (CBT) delivered in an individual format. Participants were randomly assigned to the 12 consecutive-week CBT or ERP treatment. Based on 59 treatment completers, there was no significant difference in YBOCS scores between CBT and ERP at post-treatment or at 3-month follow-up. A higher percentage of CBT participants obtained recovered status at post-treatment (67%) and at follow-up (76%), compared to ERP participants (59% and 58%, respectively), but the difference was not significant. Effect sizes (ESs) were used to compare the results of the current study with a previous study conducted at our center that utilized group CBT and ERP treatments, as well as other controlled trials that have compared CBT and ERP. The significance of these results is discussed and a comparison is made with the existing literature.

Keywords: Obsessive?compulsive disorder; Cognitive behavioral treatment; Exposure and response prevention

Behaviour Research and Therapy - Volume 43, Issue 12 - Pages 1559-1576

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