Evidence map›Paper›PMID 30482229›Full record

ArticleThe international journal of behavioral nutrition and physical activity2018

Descriptive epidemiology of changes in objectively measured sedentary behaviour and physical activity: six-year follow-up of the EPIC-Norfolk cohort.

Samantha Hajna, Tom White, Søren Brage, Esther M F van Sluijs, Kate Westgate, Andy P Jones, Robert Luben, Kay-Tee Khaw, Nicholas J Wareham, Simon J Griffin

Open access · goldAbstract read
In one paragraph

Article in The international journal of behavioral nutrition and physical activity, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
  2. Longitudinal associations between physical activity and preferred walking speed in community-dwelling older adults: a 4-year follow-up study.European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Samantha HajnaMRC Epidemiology Unit, University of Cambridge, Cambridge, UK. samantha.hajna@mrc-epid.cam.ac.uk.ORCID 0000-0002-0431-2787
Tom WhiteMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Søren BrageMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Esther M F van SluijsMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Kate WestgateMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Andy P JonesNorwich Medical School, University of East Anglia, Norwich, UK.
Robert LubenDepartment of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Kay-Tee KhawDepartment of Public Health and Primary Care, University of Cambridge, Cambridge, UK.
Nicholas J WarehamMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Simon J GriffinMRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
University of Cambridge · GBUniversity of East Anglia · GB

Funding

British Heart FoundationCancer Research UK C864/A8257CIHR FRN 146766Medical Research Council G0401527Medical Research Council G0501294Medical Research Council MC_U106179473Medical Research Council MC_UU_12015/1Medical Research Council MC_UU_12015/3Medical Research Council MC_UU_12015/4Medical Research Council MC_UU_12015/7Medical Research Council MR/K023187/1Medical Research Council MR/K025147/1Wellcome Trust 087636/Z/08/ZWellcome Trust ES/G007462/1Wellcome Trust MR/K023187/1
6 · The paper itself

Abstract

backgroundSedentary time increases and total physical activity decreases with age. The magnitude and correlates of changes in sedentary time, light-intensity physical activity (LPA), moderate-to-vigorous intensity physical activity (MVPA), and overall physical activity remain unclear. We quantified these changes and identified their individual and sociodemographic correlates.

methodsWe used data from 1259 adults (67.8 ± 6.9 years; 41.9% women) who participated in the EPIC-Norfolk Study. Activity was assessed at baseline (2004-2011) and follow-up (2012-2016) for 7 days using accelerometers. Potential correlates of change were specified a priori. We used unadjusted and adjusted sex-stratified linear regressions to identify correlates of change.

resultsOnly 3.7% of adults met the current MVPA recommendations. Sedentary time increased by 3.0 min/day/year (SD = 12.3). LPA, MVPA, and overall PA decreased by 1.7 min/day/year (SD = 5.4), 3.0 min/day/year (SD = 6.0), and 8.8 cpm/year (SD = 18.8), respectively. Correlates of greater rates of increase in sedentary time included older age and higher BMI in men, and older age, higher BMI, smoking, and urban dwelling in women. Correlates of greater rates of decrease in physical activity included older age, higher BMI, living alone, depression, car use, and/or fair/poor self-rated health in men, and older age, higher BMI, depression, smoking, and/or urban dwelling in women (e.g. depressed women had a 1.0 min/day/year greater rate of decline in MVPA than non-depressed women, 95% CI -1.8, - 0.2).

conclusionsMost (> 95%) adults are insufficiently active. Sedentary time increases and LPA, MVPA and overall physical activity decreases over time, with more pronounced rates of change observed in specific sub-groups (e.g. among older and depressed adults). To promote active living, the correlates of these changes should be considered in future interventions.

Indexed as

ExerciseHealth BehaviorSedentary BehaviorAccelerometryAgedAged, 80 and overAge FactorsCohort StudiesFemaleFollow-Up StudiesGoalsHumansMaleMiddle AgedAccelerometryPhysical activitySedentary time

Identifiers

PMID30482229
PMCPMC6257971
OpenAlexW2903091362

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.