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Sex-Specific Associations Between Self-reported Sleep Duration, Cardiovascular Disease, Hypertension, and Mortality in an Elderly Population
Högskolan i Jönköping, Hälsohögskolan, HHJ, Avd. för omvårdnad. Högskolan i Jönköping, Hälsohögskolan, HHJ. ADULT.ORCID-id: 0000-0003-1884-5696
Högskolan i Jönköping, Hälsohögskolan, HHJ, Institutet för gerontologi.ORCID-id: 0000-0002-8212-823X
Department of Cardiology and Department of Medical and Health Sciences, Linköping University, Sweden.
Department of Clinical Neurophysiology, University Hospital, Linköping, Sweden.
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2018 (Engelska)Ingår i: Journal of Cardiovascular Nursing, ISSN 0889-4655, E-ISSN 1550-5049, Vol. 33, nr 5, s. 422-428Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

BACKGROUND: Both short and long sleep durations have been associated to increased mortality. Knowledge about sex-specific differences among elderly regarding associations between sleep duration, cardiovascular health, and mortality is sparse.

OBJECTIVE: The aims of this study are to examine the association between self-reported sleep duration and mortality and to investigate whether this association is sex specific and/or moderated by cardiovascular morbidity, and also to explore potential mediators of sleep duration effects on mortality.

METHODS: A population-based, observational, cross-sectional design with 6-year follow-up with mortality as primary outcome was conducted. Self-rated sleep duration, clinical examinations, echocardiography, and blood samples (N-terminal fragment of proBNP) were collected. A total of 675 persons (50% women; mean age, 78 years) were divided into short sleepers (≤6 hours; n = 231), normal sleepers (7-8 hours; n = 338), and long sleepers (≥9 hours; n = 61). Data were subjected to principal component analyses. Cardiovascular disease (CVD) and hypertension factors were extracted and used as moderators and as mediators in the regression analyses.

RESULTS: During follow-up, 55 short sleepers (24%), 68 normal sleepers (20%), and 21 long sleepers (34%) died. Mediator analyses showed that long sleep was associated with mortality in men (hazard ratio [HR], 1.8; P = .049), independently of CVD and hypertension. In men with short sleep, CVD acted as a moderator of the association with mortality (HR, 4.1; P = .025). However, when using N-terminal fragment of proBNP, this effect became nonsignificant (HR, 3.1; P = .06). In woman, a trend to moderation involving the hypertension factor and short sleep was found (HR, 4.6; P = .09).

CONCLUSION: Short and long sleep duration may be seen as risk markers, particularly among older men with cardiovascular morbidity.

Ort, förlag, år, upplaga, sidor
Lippincott Williams & Wilkins, 2018. Vol. 33, nr 5, s. 422-428
Nyckelord [en]
aged, mortality, rural population, sex differences, sleep, sleep wake disorders, sleep deprivation, self-reported sleep
Nationell ämneskategori
Geriatrik
Identifikatorer
URN: urn:nbn:se:hj:diva-43232DOI: 10.1097/JCN.0000000000000393ISI: 000457865500009PubMedID: 28060086Scopus ID: 2-s2.0-85008311659OAI: oai:DiVA.org:hj-43232DiVA, id: diva2:1293499
Tillgänglig från: 2019-03-05 Skapad: 2019-03-05 Senast uppdaterad: 2019-03-05Bibliografiskt granskad

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Broström, AndersWahlin, Åke

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