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Internet-based psychodynamic versus cognitive behavioral guided self-help for generalized anxiety disorder: A randomized controlled trial
Department of Behavioural Sciences and Learning, Swedish Institute for Disability Research, Linköping University, Division of Psychiatry, Department of Clinical Neuroscience, Karolinska Institutet.
Department of Clinical Psychology and EMGO Institute, Vrije Universiteit, Amsterdam , The Netherlands and Department of Behavioural Sciences and Learning, Swedish Institute for Disability Research, Linköping University, Linköping.
Department of Psychology, Stockholm University, Stockholm.
Department of Psychology, Stockholm University, Stockholm.
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2012 (English)In: Psychotherapy and Psychosomatics, ISSN 0033-3190, E-ISSN 1423-0348, Vol. 81, no 6, 344-355 p.Article in journal (Refereed) Published
Abstract [en]

Background: Guided Internet-based cognitive behavior therapy (ICBT) has been tested in many trials and found to be effective in the treatment of anxiety and mood disorders. Generalized anxiety disorder (GAD) has also been treated with ICBT, but there are no controlled trials on guided Internet-based psychodynamic treatment (IPDT). Since there is preliminary support for psychodynamic treatment for GAD, we decided to test if a psychodynamically informed self-help treatment could be delivered via the Internet. The aim of the study was to investigate the efficacy of IPDT for GAD and to compare against ICBT and a waiting list control group.

Method: A randomized controlled superiority trial with individuals diagnosed with GAD comparing guided ICBT (n = 27) and IPDT (n = 27) against a no treatment waiting list control group (n = 27). The primary outcome measure was the Penn State Worry Questionnaire.

Results: While there were no significant between-group differences immediately after treatment on the main outcome measure, both IPDT and ICBT resulted in improvements with moderate to large within-group effect sizes at 3 and 18 months follow-up on the primary measure in the completer analyses. The differences against the control group, although smaller, were still significant for both PDT and CBT when conforming to the criteria of clinically significant improvement. The active treatments did not differ significantly. There was a significant group by time interaction regarding GAD symptoms, but not immediately after treatment.

Conclusions: IPDT and ICBT both led to modest symptom reduction in GAD, and more research is needed.

Copyright (C) 2012 S. Karger AG, Basel

Place, publisher, year, edition, pages
Basel, Switzerland: Karger , 2012. Vol. 81, no 6, 344-355 p.
Keyword [en]
Guided self-help, Generalized anxiety disorder, Psychodynamic therapy, Cognitive behavior therapy
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Research subject
URN: urn:nbn:se:umu:diva-61581DOI: 10.1159/000339371ISI: 000309791900003OAI: diva2:572286
Available from: 2012-11-27 Created: 2012-11-20 Last updated: 2013-03-12Bibliographically approved

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