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dc.contributor.authorTarp, Jakob
dc.contributor.authorFagerland, Morten W
dc.contributor.authorDalene, Knut Eirik
dc.contributor.authorJohannessen, Jostein Steene
dc.contributor.authorHansen, Bjørge H
dc.contributor.authorJefferis, Barbara J
dc.contributor.authorWhincup, Peter H
dc.contributor.authorDiaz, Keith M
dc.contributor.authorHooker, Steven
dc.contributor.authorHoward, Virginia J
dc.contributor.authorChernofsky, Ariel
dc.contributor.authorLarson, Martin G
dc.contributor.authorSpartano, Nicole L
dc.contributor.authorVasan, Ramachandran S
dc.contributor.authorDohrn, Ing-Mari
dc.contributor.authorHagströmer, Maria
dc.contributor.authorEdwardson, Charlotte
dc.contributor.authorYates, Thomas
dc.contributor.authorShiroma, Eric J
dc.contributor.authorDempsey, Paddy C
dc.contributor.authorWijndaele, Katrien
dc.contributor.authorAnderssen, Sigmund A
dc.contributor.authorLee, I-Min
dc.contributor.authorEkelund, Ulf
dc.date.accessioned2021-12-11T00:30:55Z
dc.date.available2021-12-11T00:30:55Z
dc.date.issued2022-07
dc.identifier.issn0306-3674
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/331339
dc.description.abstractBACKGROUND: The joint associations of total and intensity-specific physical activity with obesity in relation to all-cause mortality risk are unclear. METHODS: We included 34 492 adults (72% women, median age 62.1 years, 2034 deaths during follow-up) in a harmonised meta-analysis of eight population-based prospective cohort studies with mean follow-up ranging from 6.0 to 14.5 years. Standard body mass index categories were cross-classified with sample tertiles of device-measured total, light-to-vigorous and moderate-to-vigorous physical activity and sedentary time. In five cohorts with waist circumference available, high and low waist circumference was combined with tertiles of moderate-to-vigorous physical activity. RESULTS: There was an inverse dose-response relationship between higher levels of total and intensity-specific physical activity and mortality risk in those who were normal weight and overweight. In individuals with obesity, the inverse dose-response relationship was only observed for total physical activity. Similarly, lower levels of sedentary time were associated with lower mortality risk in normal weight and overweight individuals but there was no association between sedentary time and risk of mortality in those who were obese. Compared with the obese-low total physical activity reference, the HRs were 0.59 (95% CI 0.44 to 0.79) for normal weight-high total activity and 0.67 (95% CI 0.48 to 0.94) for obese-high total activity. In contrast, normal weight-low total physical activity was associated with a higher risk of mortality compared with the obese-low total physical activity reference (1.28; 95% CI 0.99 to 1.67). CONCLUSIONS: Higher levels of physical activity were associated with lower risk of mortality irrespective of weight status. Compared with obesity-low physical activity, there was no survival benefit of being normal weight if physical activity levels were low.
dc.publisherBMJ
dc.rightsAttribution-NonCommercial 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.titleDevice-measured physical activity, adiposity and mortality: a harmonised meta-analysis of eight prospective cohort studies.
dc.typeArticle
dc.publisher.departmentMrc Epidemiology Unit
dc.date.updated2021-12-09T15:13:44Z
prism.publicationNameBr J Sports Med
dc.identifier.doi10.17863/CAM.78787
dcterms.dateAccepted2021-11-17
rioxxterms.versionofrecord10.1136/bjsports-2021-104827
rioxxterms.versionVoR
dc.contributor.orcidTarp, Jakob [0000-0002-9186-7077]
dc.contributor.orcidJefferis, Barbara J [0000-0002-0850-3177]
dc.contributor.orcidDiaz, Keith M [0000-0003-0190-0548]
dc.contributor.orcidDohrn, Ing-Mari [0000-0003-2593-550X]
dc.contributor.orcidYates, Thomas [0000-0002-5724-5178]
dc.contributor.orcidDempsey, Paddy C [0000-0002-1714-6087]
dc.contributor.orcidLee, I-Min [0000-0002-1083-6907]
dc.identifier.eissn1473-0480
rioxxterms.typeJournal Article/Review
pubs.funder-project-idMRC (MC_UU_00006/4)
cam.issuedOnline2021-12-07
cam.depositDate2021-12-09
pubs.licence-identifierapollo-deposit-licence-2-1
pubs.licence-display-nameApollo Repository Deposit Licence Agreement


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