Evidence map›Paper›PMID 27884840›Full record

Trial reportBMJ open2016

Long-term effects of the Active for Life Year 5 (AFLY5) school-based cluster-randomised controlled trial.

Emma L Anderson, Laura D Howe, Ruth R Kipping, Rona Campbell, Russell Jago, Sian M Noble, Sian Wells, Catherine Chittleborough, Tim J Peters, Debbie A Lawlor

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

Trial report in BMJ open, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 12 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 12 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

21 citing papers in PubMed, 12 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Interventions to prevent obesity in children aged 5 to 11 years old.The Cochrane database of systematic reviews · 2024
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Pooled it
  10. Pooled it
  11. A developmental cascade perspective of paediatric obesity: A systematic review of preventive interventions from infancy through late adolescence.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2020
    Pooled it
  12. Interventions for preventing obesity in children.The Cochrane database of systematic reviews · 2019
    Pooled it
  13. Trial
  14. Trial
  15. Trial
  16. Article
  17. Article
  18. Review
  19. Review
  20. Article
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.

Emma L AndersonSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Laura D HoweSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Ruth R KippingSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Rona CampbellSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Russell JagoCentre for Exercise, Nutrition and Health, School for Policy Studies, University of Bristol, Bristol, UK.
Sian M NobleSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Sian WellsSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Catherine ChittleboroughSchool of Public Health, University of Adelaide, Adelaide, South Australia, Australia.
Tim J PetersSchool of Social and Community Medicine, University of Bristol, Bristol, UK.
Debbie A LawlorSchool of Social and Community Medicine, University of Bristol, Bristol, UK.

Funding

British Heart FoundationMedical Research Council G1002375Medical Research Council MC_UU_12013/5Medical Research Council MR/KO232331/1Wellcome Trust
6 · The paper itself

Abstract

objectiveTo investigate the long-term effectiveness of a school-based intervention to improve physical activity and diet in children.

designCluster-randomised controlled trial.

setting60 primary schools in the southwest of England.

participantsPrimary school children who were aged 8-9 years at recruitment, 9-10 years during the intervention and 10-11 years at the long-term follow-up assessment.

interventionTeacher training, provision of lesson and child-parent interactive homework plans and teaching materials.

main outcome measuresPrimary outcomes were accelerometer-assessed minutes of moderate to vigorous physical activity (MVPA) per day, accelerometer-assessed minutes of sedentary behaviour per day and reported daily consumption of servings of fruit and vegetables.

results60 schools with 2221 eligible children were recruited. As in the previously published assessment immediately after the end of the intervention, none of the three primary outcomes differed between children in schools allocated to the intervention, compared with those in control schools at the end of the long-term follow-up (1 year after the end of the intervention). Differences in secondary outcomes were consistent with those at the immediate follow-up, with no evidence that these had diminished over time. Comparing intervention with control schools, the difference in mean child-reported screen viewing at the weekend was -16.03 min (95% CI -32.82 to 0.73), for servings of snacks per day, the difference was -0.11 (95% CI -0.39 to 0.06), in servings of high-energy drinks per day -0.20 (95% CI -0.39 to -0.01) and in servings of high-fat foods per day -0.12 (95% CI -0.39 to 0.00). None of these reached our predefined level of statistical significance, especially after accounting for multiple testing.

conclusionsSchool-based curriculum interventions alone are unlikely to have a major public health impact on children's diet and physical activity. TRIAL REGISTRATION NUMBER: ISRCTN50133740, Post-results.

Indexed as

Diet, HealthyExerciseBody Mass IndexChildCurriculumEnglandFemaleFollow-Up StudiesFruitHealth PromotionHumansLinear ModelsMaleMultivariate AnalysisSchoolsVegetableschildrendietphysical activityrandomised controlled trialschools

Identifiers

PMID27884840
PMCPMC5168509

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.