Evidence map›Paper›PMID 26088807›Full record

ArticleBMJ open2015

Associations between objectively assessed and questionnaire-based sedentary behaviour with BMI-defined obesity among general population children and adolescents living in England.

Ngaire A Coombs, Emmanuel Stamatakis

Open access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
6.3field-weighted citation impact, top 4% 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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

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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

2 authors at 2 institutions in 2 countries.

Ngaire A CoombsDepartment of Epidemiology and Public Health, University College London, London, UK PARG (Physical Activity Research Group), Population Health Domain, University College London, London, UK Department of Social Statistics and Demography, University of Southampton, Southampton, UK Department of Primary Care and Population Sciences, University of Southampton, Southampton, UK.
Emmanuel StamatakisDepartment of Epidemiology and Public Health, University College London, London, UK PARG (Physical Activity Research Group), Population Health Domain, University College London, London, UK Prevention Research Collaboration, School of Public Health, University of Sydney, Sydney, Australia Charles Perkins Centre, University of Sydney, Sydney, Australia Department of Exercise Science Discipline, Faculty of Health Sciences, University of Sydney, Sydney, Australia.
University College London · GBUniversity of Southampton · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesSedentary behaviour (SB) is an emerging candidate risk factor for obesity in young people. Evidence to date is conflicting and it is unclear how different SB types are associated with obesity independently of physical activity. The objective of this study was to examine associations between a range of objectively measured and questionnaire-based SB indicators with obesity and body mass index (BMI) to assess whether these associations were independent of physical activity.

participants4469 (705 with accelerometer data) children aged 5-15 years from the 2008 Health Survey for England. OUTCOMES: The outcome was adiposity, classified using age-specific and sex-specific BMI SD scores (continuous) and obesity cut-offs (binary). Questionnaire-based measures comprised TV time, non-TV sitting time (such as homework, drawing, time at a computer or playing video games), total sitting time (TV time+non-TV sitting time) and average daily MVPA time. Objective SB and moderate to vigorous physical activity (MVPA) time were measured using an Actigraph GT1M accelerometer, with cut-offs of 100 and 200 counts per minute for SB, and 2802 counts per minute for MVPA. Multiple logistic and multiple linear regression models examined associations between each indicator of sedentary time with obesity and BMI SD scores.

resultsTV time (but not non-TV sitting or objectively-measured SB) was consistently associated with higher levels of obesity and BMI SD score, even after adjusting for MVPA and other potential confounders. Weaker associations were observed for total sitting time.

conclusionsTV viewing (but not other forms of objectively-measured or questionnaire-based sedentary time) was associated with obesity in children and adolescents. Although a causal relationship cannot be established, TV time may be a reasonable target for obesity prevention in young populations.

Indexed as

Body Mass IndexSedentary BehaviorSurveys and QuestionnairesAdolescentChildChild, PreschoolCross-Sectional StudiesEnglandExerciseFemaleHealth SurveysHumansMaleObesityRisk FactorsTelevisionPAEDIATRICSPREVENTIVE MEDICINEPUBLIC HEALTH

Identifiers

PMID26088807
PMCPMC4480033
OpenAlexW2117892510

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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Registered trials

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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.