Evidence map›Paper›PMID 33436461›Full record

ArticleBMJ open2021

Associations of active travel with adiposity among children and socioeconomic differentials: a longitudinal study.

Anthony A Laverty, Thomas Hone, Anna Goodman, Yvonne Kelly, Christopher Millett

Abstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  9. Equity in temporary street closures: The case of London's Covid-19 'School Streets' schemes.Transportation research. Part D, Transport and environment · 2022
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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

5 authors.

Anthony A LavertyPublic Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK a.laverty@imperial.ac.uk.ORCID 0000-0003-1318-8439
Thomas HonePublic Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK.ORCID 0000-0003-0703-6973
Anna GoodmanFaculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK.
Yvonne KellyEpidemiology and Public Health, University College London, London, UK.ORCID 0000-0002-2936-3994
Christopher MillettPublic Health Policy Evaluation Unit, School of Public Health, Imperial College London, London, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesExamine longitudinal associations between modes of travel to school and adiposity.

settingThe UK.

participants8432 children surveyed at ages 7, 11 and 14 years from the UK Millennium Cohort Study. PRIMARY AND SECONDARY OUTCOMES: Objective percentage body fat and body mass index (BMI). Transport mode was categorised as private motorised transport, public transport and active transport (walking or cycling). Socioeconomic position (SEP) was measured by household income group and occupational social class. We adjusted analyses for changes in the country of UK, frequency of eating breakfast, self-reported growth spurts, hours of screen time and days per week of moderate-to-vigorous physical activity. Longitudinal (panel) regression models adjusting for individual fixed effects examined associations in changes in mode of travel to school and adiposity, controlling for both time-varying and time-invariant potential confounders. Interaction tests and stratified analyses investigated differences by markers of SEP.

resultsAt age 14 years, 26.1% of children (2198) reported using private motorised transport, 35.3% (2979) used public transport and 38.6% (3255) used active transport to get to school. 36.6% (3083) of children changed mode two times between the three waves and 50.7% (4279) changed once. Compared with continuing to use private transport, switching to active transport was associated with a lower BMI (-0.21 kg/m

conclusionThis longitudinal study during a key life course period found switching to physically active forms of travel can have beneficial adiposity impacts; these associations may be more apparent for more disadvantaged children. Increasing active travel has potential to ameliorate inequalities.

Indexed as

AdiposityObesityAdolescentBody Mass IndexChildCohort StudiesHumansLongitudinal StudiesTransportationTravelcommunity child healthpreventive medicinepublic health

Identifiers

PMID33436461
PMCPMC7805367

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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.