0000000000077452

AUTHOR

Barbara J Jefferis

0000-0002-0850-3177

showing 3 related works from this author

Device-measured physical activity, adiposity and mortality: a harmonised meta-analysis of eight prospective cohort studies.

2021

BackgroundThe joint associations of total and intensity-specific physical activity with obesity in relation to all-cause mortality risk are unclear.MethodsWe 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-vigor…

AdultMaleexercise2314Original researchPhysical Therapy Sports Therapy and Rehabilitationbody mass indexGeneral MedicineMiddle AgedOverweightVDP::Medisinske Fag: 700::Idrettsmedisinske fag: 850Cohort StudiesVDP::Medisinske Fag: 700::Helsefag: 800Risk FactorsHumansOrthopedics and Sports Medicineobservational studyFemale1506ObesityProspective StudiesWaist CircumferenceAdiposity
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Joint associations of accelerometer-measured physical activity and sedentary time with all-cause mortality: a harmonised meta-analysis in more than 4…

2020

Funder: National Institute for Health Research (NIHR) Collaboration for Leadership in Applied Health Research and Care East Midlands

Time Factors2314educationPhysical activityPhysical Therapy Sports Therapy and RehabilitationsedentarydeathAccelerometryCox proportional hazards regressionHumansMedicineOrthopedics and Sports Medicine1506Prospective cohort study1507Exercisehealth care economics and organizationsAgedSedentary timeMortality Prematurebusiness.industryOriginal researchMortality rateGeneral MedicineMiddle AgedVDP::Medisinske Fag: 700::Idrettsmedisinske fag: 850Peer reviewmeta-analysisaccelerometerMeta-analysisSedentary BehaviorbusinessAll cause mortalityDemographyBritish Journal of Sports Medicine
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Daily steps and all-cause mortality: a meta-analysis of 15 international cohorts

2022

BACKGROUND: Although 10 000 steps per day is widely promoted to have health benefits, there is little evidence to support this recommendation. We aimed to determine the association between number of steps per day and stepping rate with all-cause mortality. METHODS: In this meta-analysis, we identified studies investigating the effect of daily step count on all-cause mortality in adults (aged ≥18 years), via a previously published systematic review and expert knowledge of the field. We asked participating study investigators to process their participant-level data following a standardised protocol. The primary outcome was all-cause mortality collected from death certificates and country regi…

AdultAdolescentVDP::Medisinske Fag: 700::Helsefag: 800Health SciencesPublic Health Environmental and Occupational HealthHumansWalkingMiddle AgedHälsovetenskaperExerciseAgedProportional Hazards Models
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