Evidence map›Paper›PMID 27844278›Full record

Trial reportJournal of behavioral medicine2017

Mediators of change in screen-time in a school-based intervention for adolescent boys: findings from the ATLAS cluster randomized controlled trial.

Jordan J Smith, Philip J Morgan, Chris Lonsdale, Kerry Dally, Ronald C Plotnikoff, David R Lubans

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Journal of behavioral medicine, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 9 pooled it
4.2field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 9 syntheses or guidelines pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Interventions to prevent obesity in children aged 12 to 18 years old.The Cochrane database of systematic reviews · 2024
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. School-based Physical Activity Interventions in Children and Adolescents: A Systematic Review.International journal of environmental research and public health · 2020
    Pooled it
  7. 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
  8. Interventions for preventing obesity in children.The Cochrane database of systematic reviews · 2019
    Pooled it
  9. Pooled it
  10. Trial
  11. Article
  12. Article
  13. Article
  14. Psychosocial Correlates of Recreational Screen Time among Adolescents.International journal of environmental research and public health · 2022
    Article
  15. Article
  16. Article
  17. Review
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

6 authors at 2 institutions in 1 country.

Jordan J SmithPriority Research Centre for Physical Activity and Nutrition, School of Education, Faculty of Education and Arts, University of Newcastle, Callaghan, NSW, 2308, Australia. jordan.smith@newcastle.edu.au.
Philip J MorganPriority Research Centre for Physical Activity and Nutrition, School of Education, Faculty of Education and Arts, University of Newcastle, Callaghan, NSW, 2308, Australia.
Chris LonsdaleInstitute for Positive Psychology and Education, Faculty of Health Sciences, Australian Catholic University, Strathfield, NSW, Australia.
Kerry DallyPriority Research Centre for Physical Activity and Nutrition, School of Education, Faculty of Education and Arts, University of Newcastle, Callaghan, NSW, 2308, Australia.
Ronald C PlotnikoffPriority Research Centre for Physical Activity and Nutrition, School of Education, Faculty of Education and Arts, University of Newcastle, Callaghan, NSW, 2308, Australia.
David R LubansPriority Research Centre for Physical Activity and Nutrition, School of Education, Faculty of Education and Arts, University of Newcastle, Callaghan, NSW, 2308, Australia.
University of Newcastle Australia · AUAustralian Catholic University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The mechanisms of behavior change in youth screen-time interventions are poorly understood. Participants were 361 adolescent boys (12-14 years) participating in the ATLAS obesity prevention trial, evaluated in 14 schools in low-income areas of New South Wales, Australia. Recreational screen-time was assessed at baseline, 8- and 18-months, whereas potential mediators (i.e., motivation to limit screen-time and parental rules) were assessed at baseline, 4- and 18-months. Multi-level mediation analyses followed the intention-to-treat principle and were conducted using a product-of-coefficients test. The intervention had a significant impact on screen-time at both time-points, and on autonomous motivation at 18-months. Changes in autonomous motivation partially mediated the effect on screen-time at 18-months in single and multi-mediator models [AB (95% CI) = -5.49 (-12.13, -.70)]. Enhancing autonomous motivation may be effective for limiting screen-time among adolescent males.

trial registrationAustralian New Zealand Clinical Trials Registry No: ACTRN12612000978864.

Indexed as

Motor ActivityAdolescentAdolescent BehaviorChildHealth PromotionHumansMaleMotivationObesityParentingPovertySedentary BehaviorObesity preventionPhysical activityRulesSedentary behaviorSelf-determination theory

Identifiers

PMID27844278
OpenAlexW2551227111

What OpenQuestion holds

Textmetadata
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.