ArticleBioPsychoSocial medicine2025
Does digital cognitive behavioral therapy improve the insomnia and depression of workers to healthy levels? An open trial.
Article in BioPsychoSocial medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
backgroundCognitive behavioral therapy for insomnia (CBT-I) has a high potential for improving insomnia and depressive symptoms; however, it is unclear whether the improvement of symptoms reaches the level of healthy people without these symptoms. We aimed to examine whether digital CBT-I can improve the insomnia and depression symptoms of workers to healthy levels.
methodsThe study included 752 workers who were divided into four groups by the use of the cutoff scores of insomnia and depression scales: insomnia alone, depression alone, combined insomnia with depression (COMB), and healthy. All groups were administered digital CBT-I for 2 weeks, and changes were compared post-treatment and at 1- and 3-month follow-ups.
resultsA significant decrease in insomnia symptoms from post-treatment to the 3-month follow-up was found in the insomnia alone (Hedges' g: 1.07-1.52) and COMB groups (g: 1.17-1.41). The COMB group also showed a significant decrease in depressive symptoms (g: 0.38-0.70). Moreover, there were significant differences in insomnia symptoms between both of the insomnia groups and the healthy group and in depressive symptoms between the COMB group and the healthy group, post-treatment and at the 1- and 3-month follow-ups.
conclusionsDigital CBT-I effectively reduced insomnia and depressive symptoms but did not achieve the levels of healthy people within 3 months.
trial registrationUMIN, UMIN000050353. Registered 15 February 2023-Retrospectively registered, umin.ac.jp/ctr.
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