Self-guided internet-delivered cognitive behavior therapy (iCBT) for obsessive-compulsive disorder: 12 month follow-up

Bethany M. Wootton*, Blake F. Dear, Luke Johnston, Matthew D. Terides, Nickolai Titov

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    17 Citations (Scopus)
    26 Downloads (Pure)


    Internet-delivered cognitive behavior therapy (iCBT) may reduce barriers to treatment faced by people with obsessive-compulsive disorder (OCD). To date, most research on iCBT for OCD has evaluated clinician-guided treatments. However, self-guided treatments, which do not involve contact with a clinician, have considerable public health potential and may be particularly advantageous for those patients who report stigma as a principal barrier to treatment. The findings of a recent trial of self-guided iCBT for symptoms of OCD highlighted the potential of this approach and found large within-group effect sizes from pre- to post-treatment on the YBOCS-SR (d= 1.37), sustained at 3-month follow-up (d= 1.17). In addition, 32% of participants met criteria for clinically significant change at 3-month follow-up. The present study reports the long-term outcomes of that trial (N= 28). Twelve out of 28 participants (43%) completed the 12. month follow-up. A large within-group effect size was found on the YBOCS-SR (d= 1.08) and 33% met criteria for clinically significant change at 12-month follow-up. No significant changes in symptoms were found between 3-month follow-up and 12-month follow-up, demonstrating that participants maintained their treatment gains in the long term. These results add to the emerging literature supporting the potential of self-guided iCBT for individuals with symptoms of OCD.

    Original languageEnglish
    Pages (from-to)243-247
    Number of pages5
    JournalInternet Interventions
    Issue number3
    Publication statusPublished - 1 Sep 2015

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