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Insomnia in Sweden: a population-based survey
Stockholm University, Faculty of Social Sciences, Stress Research Institute. (Biologisk psykologi och behandlingsforskning)
2014 (English)In: Sleep Disorders, ISSN 2090-3545, E-ISSN 2090-3553, Vol. 2014, 843126- p.Article in journal (Refereed) Published
Abstract [en]

Aims. Estimate the prevalence of insomnia and examine effects of sex, age, health problems, sleep duration, need for treatment, and usage of sleep medication. Methods. A sample of 1,550 subjects aged 18-84 years was selected for a telephone interview. The interview was completed by 1,128 subjects (72.8%). Results. 24.6% reported insomnia symptoms. Insomnia disorder, that is, insomnia symptoms and daytime consequences, was reported by 10.5%. The prevalence was similar among all age groups, with the exception of women aged 40-49 years who demonstrated a significantly higher prevalence, 21.6%. Having at least one physical or psychiatric disorder was reported by 82.8% of subjects with insomnia disorder. Mean sleep duration for subjects with insomnia disorder was 5.77 hours on weeknights and 7.03 hours on days off/weekends. The corresponding figures for subjects without insomnia disorder were 7.04 hours and 7.86 hours, respectively. Among those with insomnia disorder 62.5% expressed a need for treatment, and 20.0% used prescribed sleep medication regularly. Conclusions. Insomnia disorder is highly prevalent in the population. There are significant associations between insomnia disorder and physical and psychiatric disorders. A majority of subjects with insomnia disorder expressed a need for treatment, indicating a public health problem.

Place, publisher, year, edition, pages
2014. Vol. 2014, 843126- p.
Keyword [en]
Depressive disorder, epidemiology, major depressive disorder, psychometrics, questionnaires, validation study
National Category
Health Sciences
URN: urn:nbn:se:su:diva-106165DOI: 10.1155/2014/843126PubMedID: 24955254Local ID: P-3149OAI: diva2:735212
Available from: 2014-07-24 Created: 2014-07-24 Last updated: 2014-08-13Bibliographically approved

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Akerstedt, Torbjörn
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