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Internet-vs. group-delivered cognitive behavior therapy for insomnia: A randomized controlled non-inferiority trial
Karolinska Institute, Sweden.
Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Arts and Sciences.
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Health Sciences. Region Östergötland, Anaesthetics, Operations and Specialty Surgery Center, Pain and Rehabilitation Center.
Linköping University, Department of Behavioural Sciences and Learning. Linköping University, Faculty of Arts and Sciences.
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2015 (English)In: Behaviour Research and Therapy, ISSN 0005-7967, E-ISSN 1873-622X, Vol. 70, 47-55 p.Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to compare guided Internet-delivered to group-delivered cognitive behavioral therapy (CBT) for insomnia. We conducted an 8-week randomized controlled non-inferiority trial with 6-months follow-up. Participants were forty-eight adults with insomnia, recruited via media. Interventions were guided Internet-delivered CBT (ICBT) and group-delivered CBT (GCBT) for insomnia. Primary outcome measure was the Insomnia Severity Index (ISI), secondary outcome measures were sleep diary data, depressive symptoms, response- and remission rates. Both treatment groups showed significant improvements and large effect sizes for ISI (Within Cohens d: ICBT post = 1.8, 6-months follow-up = 2.1; GCBT post = 2.1, 6-months follow-up = 2.2). Confidence interval of the difference between groups posttreatment and at FU6 indicated non-inferiority of ICBT compared to GCBT. At post-treatment, two thirds of patients in both groups were considered responders (ISI-reduction greater than 7p). Using diagnostic criteria, 63% (ICBT) and 75% (GCBT) were in remission. Sleep diary data showed moderate to large effect sizes. We conclude that both guided Internet-CBT and group-CBT in this study were efficacious with regard to insomnia severity, sleep parameters and depressive symptoms. The results are in line with previous research, and strengthen the evidence for guided Internet-CBT for insomnia. Trial registration: The study protocol was approved by, and registered with, the regional ethics review board in Linkoping, Sweden, registration number 2010/385-31.

Place, publisher, year, edition, pages
Elsevier , 2015. Vol. 70, 47-55 p.
Keyword [en]
CBT; Insomnia; Internet; Non-inferiority; Group therapy; Psychotherapy
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URN: urn:nbn:se:liu:diva-120137DOI: 10.1016/j.brat.2015.05.002ISI: 000356552200006PubMedID: 25981329OAI: diva2:841639

Funding Agencies|Linkoping University; Stockholm County Council; Karolinska Institutet

Available from: 2015-07-14 Created: 2015-07-13 Last updated: 2016-04-25

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Wiklund, TobiasJohansson, RobertHesser, HugoAndersson, Gerhard
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Department of Behavioural Sciences and LearningFaculty of Arts and SciencesDivision of Community MedicineFaculty of Health SciencesPain and Rehabilitation CenterPsychology
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