dc.contributor.author | Vedaa, Øystein | |
dc.contributor.author | Hagatun, Susanne | |
dc.contributor.author | Kallestad, Håvard | |
dc.contributor.author | Pallesen, Ståle | |
dc.contributor.author | Smith, Otto Robert Frans | |
dc.contributor.author | Thorndike, Frances P | |
dc.contributor.author | Ritterband, Lee M. | |
dc.contributor.author | Sivertsen, Børge | |
dc.date.accessioned | 2020-05-28T12:20:44Z | |
dc.date.available | 2020-05-28T12:20:44Z | |
dc.date.issued | 2019 | |
dc.Published | Vedaa Ø, Hagatun S, Kallestad H, Pallesen S, Smith ORF, Thorndike FP, Ritterband LM, Sivertsen BS. Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia. Journal of Clinical Sleep Medicine (JCSM). 2019;15(1):101-110 | eng |
dc.identifier.issn | 1550-9397 | |
dc.identifier.issn | 1550-9389 | |
dc.identifier.uri | https://hdl.handle.net/1956/22399 | |
dc.description.abstract | STUDY OBJECTIVES: The aim of this study was to test the efficacy of fully automated Internet-delivered cognitive behavioral therapy for insomnia (CBT-I) 18 months after the intervention period on sleep, daytime functioning, and beliefs about sleep for adults with chronic insomnia. METHODS: Participants in this study had participated in a randomized controlled trial comparing the efficacy of unguided Internet CBT-I with web-based patient education. Participants who had received Internet CBT-I (n = 95) completed online questionnaires and online sleep diaries 18 months after the intervention period. We used linear mixed models to study changes from baseline to postassessment and to 18-month follow-up, and a separate mixed-models analysis to study changes from postassessment to 18-month follow-up. RESULTS: Mean age of the participants was 45.5 years (standard deviation = 12.6) and 64% were females. Sixty-six participants (70%) completed the 18-month follow-up assessment. There were significant improvements from baseline to 18-month follow-up on the Insomnia Severity Index (ISI) (Cohen d = 2.04 [95% confidence interval (CI) 1.66–2.42]) and the Bergen Insomnia Scale (BIS) (d = 1.64 [95% CI 1.30–1.98]), levels of daytime fatigue (d = 0.85 [95% CI 0.59–1.11]), psychological distress (d = 0.51 [95% CI 0.29–0.73]), and beliefs about sleep (d = 1.44 [95% CI 1.15–1.73]). Moderate to large effect size improvements were also shown on the diary-derived sleep variables. All improvements from baseline to postassessment were essentially maintained to 18-month follow-up. CONCLUSIONS: Unguided Internet CBT-I appears to have sustained effects on sleep, daytime functioning, and beliefs about sleep up to 18 months after the intervention period. | en_US |
dc.language.iso | eng | eng |
dc.publisher | AASM | eng |
dc.title | Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia | eng |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.date.updated | 2020-02-02T20:51:41Z | |
dc.description.version | acceptedVersion | |
dc.rights.holder | Copyright 2019 American Academy of Sleep Medicine | eng |
dc.identifier.doi | https://doi.org/10.5664/jcsm.7580 | |
dc.identifier.cristin | 1660852 | |
dc.source.journal | Journal of Clinical Sleep Medicine (JCSM) | |
dc.relation.project | Norges forskningsråd: 239985 | |