Evidence map›Paper›PMID 30628172›Full record

SynthesisObesity reviews : an official journal of the International Association for the Study of Obesity2019

Are school-based physical activity interventions effective and equitable? A meta-analysis of cluster randomized controlled trials with accelerometer-assessed activity.

Rebecca Love, Jean Adams, Esther M F van Sluijs

Open access · hybridAbstract readMeta-Analysis
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Obesity reviews : an official journal of the International Association for the Study of Obesity, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 221 papers, 26 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
221citing papers in PubMed, 26 pooled it
57.3field-weighted citation impact, top 1% 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

221 citing papers in PubMed, 26 syntheses or guidelines pooled it, 462 citations in OpenAlex.

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161 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Rebecca LoveCentre for Diet and Activity Research (CEDAR), MRC Epidemiology Unit, University of Cambridge, Cambridge, UK.ORCID 0000-0003-3859-4417
Jean AdamsCentre for Diet and Activity Research (CEDAR), MRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
Esther M F van SluijsCentre for Diet and Activity Research (CEDAR), MRC Epidemiology Unit, University of Cambridge, Cambridge, UK.
University of Cambridge · GB

Funding

British Heart Foundation, Department of Health, Economic and Social Research Council, Medical Research CouncilCentre for Diet and Activity Research (CEDAR) 087636/Z/08/ZCentre for Diet and Activity Research (CEDAR) ES/G007462/1Centre for Diet and Activity Research (CEDAR) MR/K023187/1Medical Research Council MC_UU_12015/7Medical Research Council MR/K023187/1Wellcome Trust
6 · The paper itself

Abstract

The prevalence of childhood obesity is increasing at epidemic rates globally, with widening inequalities between advantaged and disadvantaged groups. Despite the promise of schools as a universal context to access and influence all children, the potential of school-based interventions to positively impact children's physical activity behaviour, and obesity risk, remains uncertain. We searched six electronic databases to February 2017 for cluster randomized trials of school-based physical activity interventions. Following data extraction, authors were sent re-analysis requests. For each trial, a mean change score from baseline to follow-up was calculated for daily minutes of accelerometer-assessed moderate-to-vigorous physical activity (MVPA), for the main effect, by gender, and by socio-economic position (SEP). Twenty-five trials met the inclusion criteria; 17 trials provided relevant data for inclusion in the meta-analyses. The pooled main effect for daily minutes of MVPA was nonexistent and nonsignificant. There was no evidence of differential effectiveness by gender or SEP. This review provides the strongest evidence to date that current school-based efforts do not positively impact young people's physical activity across the full day, with no difference in effect across gender and SEP. Further assessment and maximization of implementation fidelity is required before it can be concluded that these interventions have no contribution to make.

Indexed as

Health Status DisparitiesAccelerometryAdolescentChildCluster AnalysisExerciseFemaleHumansMalePediatric ObesityPhysical Education and TrainingRandomized Controlled Trials as TopicSchoolsSocioeconomic Factorschildren and adolescentsmeta-analysisphysical activitysystematic review

Identifiers

PMID30628172
PMCPMC6563481
OpenAlexW2910032966

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.