Nonrestorative sleep and its association with insomnia severity, sleep debt, and social jetlag in adults: Variations in relevant factors among age groups.

Autor: Takano Y; Department of Somnology, Tokyo Medical University, Tokyo, Japan; Japan Somnology Center, Neuropsychiatric Research Institute, Tokyo, Japan. Electronic address: takano.yuta.3z@tokyo-med.ac.jp., Ibata R; Sapporo Mental and Physical Health Clinic, Hokkaido, Japan., Machida N; Osaka Counseling Center Bellflower, Osaka, Japan., Okajima I; Department of Psychological Counseling, Faculty of Humanities, Tokyo Kasei University, Tokyo, Japan.
Jazyk: angličtina
Zdroj: Sleep medicine [Sleep Med] 2024 Sep; Vol. 121, pp. 203-209. Date of Electronic Publication: 2024 Jul 10.
DOI: 10.1016/j.sleep.2024.07.008
Abstrakt: Objective: Nonrestorative sleep (NRS) is unrefreshing sleep that is harmful to mental and physical health. Although few studies have reported the relationship between NRS and sleep problems, none have evaluated this relationship by age group. This study aimed to determine whether NRS could be associated with insomnia severity, sleep debt, and social jetlag and whether this relationship would vary with age.
Methods: The 1592 participants were allocated into age groups: 18-25 years (n = 317), 26-40 years (n = 405), 41-65 years (n = 454), and >65 years (n = 416). The study used Restorative Sleep Questionnaire to assess NRS, Athens Insomnia Scale to assess insomnia severity, Sleep Debt Index to assess sleep debt, and the absolute difference in midpoints of sleep between weekdays and days off to assess social jetlag.
Results: Logistic regression analysis was performed to determine the association between NRS and sleep problems. In the 18-25-year group, insomnia severity, sleep debt of ≥2 h, and social jetlag of ≥2 h; in the 26-40-year group, insomnia severity and sleep debt of ≥2 h; in the 41-65-year group, insomnia severity and sleep debt of ≥2 h; and in the >65-year group, insomnia severity were significantly associated with NRS.
Conclusion: NRS was associated with insomnia severity in all age groups, with sleep debt in the young and working-age groups and social jetlag in the young age group. Different approaches to improving the NRS are required for different age groups.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: YT received lecture fees from Yoshitomi Yakuhin Co. for projects unrelated to the submitted work. RI and NM declare no conflicts of interest relevant to the content of this article. IO received grants from NEC Solution Innovators Co. Ltd. and Infocom Co.; lecture fees from Otsuka Pharmaceutical Co. Ltd., MSD K·K., and Eisai Co. Ltd.; and consultation fees from NEC Solution Innovators Co. Ltd. and Suntory Wellness Ltd., for projects unrelated to the submitted work. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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