Evidence map›Paper›PMID 23624466›Full record

Trial reportBritish journal of sports medicine2014

Effects of a 20-month cluster randomised controlled school-based intervention trial on BMI of school-aged boys and girls: the HEIA study.

May Grydeland, Mona Bjelland, Sigmund Alfred Anderssen, Knut-Inge Klepp, Ingunn Holden Bergh, Lene Frost Andersen, Yngvar Ommundsen, Nanna Lien

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in British journal of sports medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 19 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 19 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

45 citing papers in PubMed, 19 syntheses or guidelines pooled it.

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  4. Interventions to prevent obesity in children aged 5 to 11 years old.The Cochrane database of systematic reviews · 2024
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  11. Interventions for preventing obesity in children.The Cochrane database of systematic reviews · 2019
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  16. Obesity prevention and the Health promoting Schools framework: essential components and barriers to success.The international journal of behavioral nutrition and physical activity · 2015
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  19. EFFECTIVENESS OF OBESITY INTERVENTION PROGRAMS BASED ON GUIDELINES FOR ADOLESCENT STUDENTS: SYSTEMATIC REVIEW.Revista paulista de pediatria : orgao oficial da Sociedade de Pediatria de Sao Paulo
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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

8 authors.

May GrydelandDepartment of Sports Medicine, Norwegian School of Sport Sciences, , Oslo, Norway.
Mona Bjelland
Sigmund Alfred Anderssen
Knut-Inge Klepp
Ingunn Holden Bergh
Lene Frost Andersen
Yngvar Ommundsen
Nanna Lien

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSchool-based interventions that target prevention of overweight and obesity in children have been tested with mixed results. Thus, successful interventions are still called for. The aim of the present study was to investigate effects of a multicomponent school-based intervention programme targeting physical activity, sedentary and dietary behaviours on anthropometric outcomes.

methodsA 20-month intervention was evaluated in a cluster randomised, controlled study of 1324 11-year-olds. Outcome variables were body mass index (BMI), BMI-for-age z-score (BMIz), waist circumference (WC), waist-to-height ratio (WTHR) and weight status (International Obesity Task Force's cut-offs). Weight, height and WC were measured objectively; pubertal status was self-reported and parental education was self-reported by the parents. Intervention effects were determined by one-way analysis of covariance and logistic regression, after checking for clustering effects of school, and moderating effects of gender, pubertal status and parental education.

resultsBeneficial effects were found for BMI (p=0.02) and BMIz (p=0.003) in girls, but not in boys. While a beneficial effect was found for BMI (p=0.03) in participants of parents reporting a high level of education, a negative effect was found for WTHR in participants with parents reporting a low level of education (p=0.003). There were no intervention effects for WC and weight status.

conclusionsA multicomponent 20-month school-based intervention had a beneficial effect on BMI and BMIz in adolescent girls, but not in boys. Furthermore, children of higher educated parents seemed to benefit more from the intervention, and this needs attention in future interventions to avoid further increase in social inequalities in overweight and obesity.

Indexed as

Body Mass IndexChildCluster AnalysisEnergy IntakeExercise TherapyFemaleHealth PromotionHumansMaleObesitySchool Health ServicesSedentary BehaviorWaist CircumferenceAdolescentsHealth promotion through physical activityInteractions between food intake and physical activity/exercise

Identifiers

PMID23624466
PMCPMC3995249

What OpenQuestion holds

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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.