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dc.contributor.authorLeng, Yue
dc.contributor.authorWainwright, Nick WJ
dc.contributor.authorCappuccio, Francesco P
dc.contributor.authorSurtees, Paul G
dc.contributor.authorHayat, Shabina
dc.contributor.authorLuben, Robert
dc.contributor.authorBrayne, Carol
dc.contributor.authorKhaw, Kay-Tee
dc.date.accessioned2018-09-21T15:21:27Z
dc.date.available2018-09-21T15:21:27Z
dc.date.issued2014-05-01
dc.identifier.issn0002-9262
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/280624
dc.description.abstractEpidemiologic studies have reported conflicting results on the relationship between daytime napping and mortality risk, and there are few data on the potential association in the British population. We investigated the associations between daytime napping and all-cause or cause-specific mortality in the European Prospective Investigation Into Cancer-Norfolk study, a British population-based cohort study. Among the 16,374 men and women who answered questions on napping habits between 1998 and 2000, a total of 3,251 died during the 13-year follow-up. Daytime napping was associated with an increased risk of all-cause mortality (for napping less than 1 hour per day on average, hazard ratio = 1.14, 95% confidence interval: 1.02, 1.27; for napping 1 hour or longer per day on average, hazard ratio = 1.32, 95% confidence interval: 1.04, 1.68), independent of age, sex, social class, educational level, marital status, employment status, body mass index, physical activity level, smoking status, alcohol intake, depression, self-reported general health, use of hypnotic drugs or other medications, time spent in bed at night, and presence of preexisting health conditions. This association was more pronounced for death from respiratory diseases (for napping less than 1 hour, hazard ratio = 1.40, 95% confidence interval: 0.95, 2.05; for napping 1 hour or more, hazard ratio = 2.56, 95% confidence interval: 1.34, 4.86) and in individuals 65 years of age or younger. Excessive daytime napping might be a useful marker of underlying health risk, particularly of respiratory problems, especially among those 65 years of age or younger. Further research is required to clarify the nature of the observed association.
dc.description.sponsorshipThe funding sources did not have a role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript.
dc.format.mediumPrint-Electronic
dc.languageeng
dc.publisherOxford University Press (OUP)
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectHumans
dc.subjectRespiratory Tract Diseases
dc.subjectCardiovascular Diseases
dc.subjectBody Mass Index
dc.subjectHealth Surveys
dc.subjectMortality
dc.subjectRisk Assessment
dc.subjectProspective Studies
dc.subjectHealth Behavior
dc.subjectSleep
dc.subjectAge Factors
dc.subjectTime Factors
dc.subjectSocioeconomic Factors
dc.subjectAdult
dc.subjectAged
dc.subjectMiddle Aged
dc.subjectFemale
dc.subjectMale
dc.subjectUnited Kingdom
dc.titleDaytime napping and the risk of all-cause and cause-specific mortality: a 13-year follow-up of a British population.
dc.typeArticle
prism.endingPage1124
prism.issueIdentifier9
prism.publicationDate2014
prism.publicationNameAm J Epidemiol
prism.startingPage1115
prism.volume179
dc.identifier.doi10.17863/CAM.27990
dcterms.dateAccepted2014-02-10
rioxxterms.versionofrecord10.1093/aje/kwu036
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2014-05
dc.contributor.orcidHayat, Shabina [0000-0001-9068-8723]
dc.contributor.orcidLuben, Robert [0000-0002-5088-6343]
dc.contributor.orcidBrayne, Carol [0000-0001-5307-663X]
dc.contributor.orcidKhaw, Kay-Tee [0000-0002-8802-2903]
dc.identifier.eissn1476-6256
rioxxterms.typeJournal Article/Review
pubs.funder-project-idMedical Research Council (G1000143)
pubs.funder-project-idMedical Research Council (G0401527)
cam.issuedOnline2014-03-30


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International