Evidence map›Paper›PMID 39562470›Full record

Trial reportCanadian journal of public health = Revue canadienne de sante publique2025

Adolescent behavioural intentions: Secondary outcomes from a cluster randomized controlled trial of the Health4Life school-based lifestyle modification intervention.

Siobhan O'Dean, Scarlett Smout, Matthew Sunderland, Tim Slade, Lauren A Gardner, Cath Chapman, Louise Thornton, Bridie Osman, Emily Hunter, Lyra Egan and 3 more

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

Trial report in Canadian journal of public health = Revue canadienne de sante publique, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. 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

13 authors.

Siobhan O'DeanThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-5898-2065
Scarlett SmoutThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia. Scarlett.smout@sydney.edu.au.ORCID 0000-0001-5879-442X
Matthew SunderlandThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-8452-364X
Tim SladeThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-1725-9188
Lauren A GardnerThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-8592-6691
Cath ChapmanThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-2460-6862
Louise ThorntonThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-7705-833X
Bridie OsmanThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-4286-6844
Emily HunterThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-5495-6962
Lyra EganThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0003-0922-4396
Maree TeessonThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0002-6744-463X
Nicola C NewtonThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-6305-2623
Katrina E ChampionThe Matilda Centre for Research in Mental Health and Substance Use, The University of Sydney, Sydney, NSW, Australia.ORCID 0000-0001-8319-9366

Funding

National Health and Medical Research Council APP1078407National Health and Medical Research Council APP1120641National Health and Medical Research Council APP1166377
6 · The paper itself

Abstract

interventionHealth4Life: a school-based eHealth intervention targeting multiple health behaviour change (MHBC). RESEARCH QUESTION: Does Health4Life impact secondary outcomes of self-reported intentions regarding six lifestyle behaviours in adolescents (alcohol use, tobacco smoking, screentime, physical activity, discretionary beverage consumption, and sleep)?

methodsWe implemented a cluster randomized controlled trial within secondary schools across three Australian states. Schools were randomly assigned (1:1) to receive either the Health4Life intervention, which consisted of a six-module, web-based program and accompanying smartphone app, or an active control (standard health education). Randomization was stratified by site and school gender composition (using Blockrand in R). All students aged 11-13 years who attended the participating schools and were fluent in English were eligible. Students completed self-report questionnaires at baseline, post-intervention, 12 months, and 24 months. Outcomes were intentions to try alcohol, try tobacco, reduce screentime, engage in physical activity on most or all days, swap discretionary beverages for water, and meet sleep guidelines. Mixed effects models estimated between-group differences in the outcomes over 24 months.

resultsImmediately post-intervention, Health4Life significantly reduced intentions to try alcohol and tobacco and increased intentions for longer sleep and reduced screentime compared to control. Intervention effects on screentime intentions persisted at 12 months but not at 24 months. No lasting effects were observed on intentions for physical activity or discretionary beverage consumption.

conclusionHealth4Life shows promise in influencing adolescent intentions across various MHBC areas, especially immediately after intervention. However, further investigation is needed to sustain these intention changes beyond short term to facilitate behaviour change.

Indexed as

Adolescent BehaviorHealth BehaviorHealth PromotionIntentionLife StyleSchool Health ServicesAdolescentAustraliaChildExerciseFemaleHumansMaleAdolescentHealth behaviourIntentionLifestyleSchools

Identifiers

PMID39562470
PMCPMC12381305

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.