Cited by 20Sleep and related disordersAnxiety, Depression, Psychometrics, Treatment, Cognitive ProcessesObstructive Sleep Apnea Research

Is cognitive behavioral therapy for insomnia effective for improving sleep duration in individuals with insomnia? A meta-analysis of randomized controlled trials

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Chan, Wai Sze, McCrae, Christina S, Ng, Albe Sin-Ying·2023·Annals of Behavioral Medicine

Abstract

BACKGROUND: Accumulating evidence suggests that sleep duration is a critical determinant of physical and mental health. Half of the individuals with chronic insomnia report less than optimal sleep duration. Cognitive behavioral therapy for insomnia (CBT-I) is an effective treatment for reducing sleep difficulties in individuals with chronic insomnia. However, its effectiveness for increasing sleep duration is less well-established and a synthesis of these findings is lacking. PURPOSE: To provide a synthesis of findings from randomized controlled trials (RCTs) on the effect of CBT-I on subjective and objective total sleep time (TST). METHODS: A systematic search was performed on articles published from 2004 to 05/30/2021. A total of 43 RCTs were included in the meta-analysis. Publication biases were examined. Meta-regressions were conducted to examine if any sample or treatment characteristics moderated the effect sizes across trials. RESULTS: We found a small average effect of CBT-I on diary-assessed TST at post-treatment, equivalent to an approximately 30-min increase. Age significantly moderated the effects of CBT-I on diary-measured and polysomnography-measured TST; older ages were associated with smaller effect sizes. Contrarily, a negative, medium effect size was found for actigraphy-assessed TST, equivalent to an approximately 30-min decrease. Publication biases were found for diary data at follow-up assessments suggesting that positive findings were favored. CONCLUSIONS: CBT-I resulted in improvements in TST measured by sleep diaries and polysomnography (in adults). These improvements were not corroborated by actigraphy findings. Theoretical and clinical implications were discussed.

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Crossref · 10.1093/abm/kaac061

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Authors
Chan, W. S., McCrae, C. S., & Ng, A. S.-Y.
Affiliations
  • University of Hong Kong (HK)
  • University of Missouri (US)
Corresponding author
Chan, Wai Sze
Venue
Annals of Behavioral Medicine
Published
2022-12-03
Volume
57
Issue
6
Pages
428-441
ISSN
  • 0742-5554 (ISSN-L)
  • 0883-6612
  • 1532-4796
OpenAlex
W4310640724
Cited by
20
References
86
Citations by year
2026: 7 · 2025: 6 · 2024: 4 · 2023: 3
FWCI
0.47
Type
journal article
Language
en
Open access
Locations
  • Annals of Behavioral Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • The HKU Scholars Hub (University of Hong Kong) (submittedVersion, cc-by-nc-nd)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes
  • Health Sciences › Medicine › Physiology › Obstructive Sleep Apnea Research
Keywords
cognitive behavioral therapy for insomnia, chronic insomnia, sleep duration, total sleep time, sleep diary, polysomnography, actigraphy, age as moderator, publication bias, treatment effectiveness
MeSH terms
Sleep Duration, Adult, Humans, Sleep Initiation and Maintenance Disorders, Sleep, Cognitive Behavioral Therapy, Randomized Controlled Trials as Topic, Treatment Outcome, Polysomnography

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