Internet-based cognitive behaviour therapy for obsessive-compulsive disorder: a randomized controlled trial.

Abstract:

BACKGROUND:Cognitive behaviour therapy (CBT) is an effective treatment for obsessive-compulsive disorder (OCD) but access to CBT is limited. Internet-based CBT (ICBT) with therapist support is potentially a more accessible treatment. There are no randomized controlled trials testing ICBT for OCD. The aim of this study was to investigate the efficacy of ICBT for OCD in a randomized controlled trial. METHOD:Participants (n=101) diagnosed with OCD were randomized to either 10 weeks of ICBT or to an attention control condition, consisting of online supportive therapy. The primary outcome measure was the Yale-Brown Obsessive Compulsive Scale (YBOCS) administered by blinded assessors. RESULTS:Both treatments lead to significant improvements in OCD symptoms, but ICBT resulted in larger improvements than the control condition on the YBOCS, with a significant between-group effect size (Cohen's d) of 1.12 (95% CI 0.69-1.53) at post-treatment. The proportion of participants showing clinically significant improvement was 60% (95% CI 46-72) in the ICBT group compared to 6% (95% CI 1-17) in the control condition. The results were sustained at follow-up. CONCLUSIONS:ICBT is an efficacious treatment for OCD that could substantially increase access to CBT for OCD patients. Replication studies are warranted.

journal_name

Psychol Med

journal_title

Psychological medicine

authors

Andersson E,Enander J,Andrén P,Hedman E,Ljótsson B,Hursti T,Bergström J,Kaldo V,Lindefors N,Andersson G,Rück C

doi

10.1017/S0033291712000244

subject

Has Abstract

pub_date

2012-10-01 00:00:00

pages

2193-203

issue

10

eissn

0033-2917

issn

1469-8978

pii

S0033291712000244

journal_volume

42

pub_type

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