Efficacy of digital cognitive behavioural therapy for insomnia in Armed Forces and Veteran populations - A systematic review and meta-analysis of randomised controlled trials.
Alex J Rawcliffe, Sofia Isabel Ribeiro Pereira
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In 30 seconds
This systematic review and meta-analysis evaluated the efficacy of digital cognitive behavioural therapy for insomnia (CBT-I) in Armed Forces personnel. Analyzing data from six randomized controlled trials involving 558 participants, the study found a statistically significant moderate-to-large reduction in insomnia severity, with a notable effect size. The overall risk of bias was assessed as moderate.
Key findings
- Pooled post-treatment effects showed a moderate-to-large reduction in insomnia severity favoring digital CBT-I.
- Three studies reported clinically meaningful reductions in Insomnia Severity Index scores of ≥6 points.
- Follow-up assessments indicated maintenance of treatment gains up to 12 months.
Why it matters
Insomnia is prevalent in military populations and can significantly impact readiness and quality of life. Digital CBT-I offers a scalable solution to address this issue, particularly in settings where traditional therapy access is limited.
What to keep in mind
Overall risk of bias was unclear or high, primarily due to limited reporting and attrition.