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Clinical effectiveness and cost-effectiveness of Internet- vs. group-based cognitive behavior therapy for social anxiety disorder: 4-Year follow-up of a randomized trial
Karolinska Institutet.
Karolinska Institutet.ORCID iD: 0000-0002-6590-1606
Karolinska Institutet.
Karolinska Institutet.ORCID iD: 0000-0003-0088-8719
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2014 (English)In: Behaviour Research and Therapy, ISSN 0005-7967, E-ISSN 1873-622X, Vol. 59, p. 20-29Article in journal (Refereed) Published
Abstract [en]

Social anxiety disorder (SAD) is common, debilitating and associated with high societal costs. The disorder can be effectively treated with Internet-based cognitive behavior therapy (ICBT), but no previous study has investigated the long-term clinical or health economic effects of ICBT for SAD in comparison to an evidence-based control treatment. The aim of the study was to investigate the clinical effectiveness and cost-effectiveness of ICBT compared to cognitive behavioral group therapy (CBGT) four years post-treatment. We conducted a 4-year follow-up study of participants who had received ICBT or CBGT for SAD within the context of a randomized controlled non-inferiority trial. The cost-effectiveness analyses were conducted taking a societal perspective. Participants in both treatment groups made large improvements from baseline to 4-year follow-up on the primary outcome measure (d = 1.34-1.48) and the 95% CI of the mean difference on the primary outcome was well within the non-inferiority margin. ICBT and CBGT were similarly cost-effective and both groups reduced their indirect costs. We conclude that ICBT for SAD yields large sustainable effects and is at least as long-term effective as CBGT. Intervention costs of both treatments are offset by net societal cost reductions in a short time. (C) 2014 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 59, p. 20-29
Keywords [en]
Social anxiety disorder, Internet-based cognitive behavior therapy, Cognitive behavioral group therapy, Long-term effects, Cost-effectiveness
National Category
Applied Psychology
Research subject
Social Sciences, Psychology
Identifiers
URN: urn:nbn:se:lnu:diva-74000DOI: 10.1016/j.brat.2014.05.010ISI: 000340224000003PubMedID: 24949908OAI: oai:DiVA.org:lnu-74000DiVA, id: diva2:1204406
Available from: 2018-05-08 Created: 2018-05-08 Last updated: 2018-05-08Bibliographically approved

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Kaldo, Viktor

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El Alaoui, SamirAndersson, ErikRuck, ChristianGhaderi, AtaKaldo, ViktorAndersson, GerhardLjotsson, Brjann
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