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Sleep Duration and Sleep Disturbances as Predictors of Healthy and Chronic Disease-Free Life Expectancy Between Ages 50 and 75: A Pooled Analysis of Three Cohorts
Stockholm University, Faculty of Social Sciences, Stress Research Institute. University of Turku, Finland; Turku University Hospital, Finland; University of Tampere, Finland.
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Number of Authors: 102019 (English)In: The journals of gerontology. Series A, Biological sciences and medical sciences, ISSN 1079-5006, E-ISSN 1758-535X, Vol. 74, no 2, p. 204-210Article in journal (Refereed) Published
Abstract [en]

Background The aim of this study was to examine the associations of sleep duration and sleep disturbances with healthy and chronic disease-free life expectancy (LE) between ages 50 and 75. Methods Data were drawn from repeated waves of three occupational cohort studies in England, Finland, and Sweden (n = 55,494) and the follow-up ranged from 6 to 18 years. Self-reported sleep duration was categorized into <7, 7-8.5, and 9 hours and sleep disturbances into no, moderate, and severe. Health expectancy was estimated with two health indicators: healthy LE based on years in good self-rated health and chronic disease-free LE based on years without chronic diseases. Multistate life table models were used to estimate healthy and chronic disease-free LE from age 50 to 75 years for each category of sleep measures in each cohort. Fixed-effects meta-analysis was used to pool the cohort-specific results into summary estimates. Results Persons who slept 7-8.5 hours could expect to live 19.1 (95% CI 19.0-19.3) years in good health and 13.5 (95% CI 13.2-13.7) years without chronic diseases between ages 50 and 75. Healthy and disease-free years were 1-3 years shorter for those who slept less than 7 hours or slept 9 hours or more. Persons who did not have sleep disturbances could expect to live 20.4 (95% CI 20.3-20.6) years in good health and 14.3 (95% CI 14.1-14.5) years without chronic diseases between ages 50 and 75. Healthy and disease-free years were 6-3 years shorter for those who reported severe sleep disturbances. Conclusions Sleeping 7-8.5 hours and having no sleep disturbances between ages 50 to 75 are associated with longer healthy and chronic disease-free LE.

Place, publisher, year, edition, pages
2019. Vol. 74, no 2, p. 204-210
Keywords [en]
Cohort study, Health expectancy, Healthy life expectancy, Life expectancy, Sleep
National Category
Public Health, Global Health, Social Medicine and Epidemiology Gerontology, specialising in Medical and Health Sciences
Identifiers
URN: urn:nbn:se:su:diva-168446DOI: 10.1093/gerona/gly016ISI: 000462600300010PubMedID: 29415200OAI: oai:DiVA.org:su-168446DiVA, id: diva2:1313384
Available from: 2019-05-03 Created: 2019-05-03 Last updated: 2019-05-03Bibliographically approved

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Hanson, Linda L. MagnussonWesterlund, HugoVahtera, Jussi
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The journals of gerontology. Series A, Biological sciences and medical sciences
Public Health, Global Health, Social Medicine and EpidemiologyGerontology, specialising in Medical and Health Sciences

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