Evidence map›Paper›PMID 25757946›Full record

SynthesisBMJ open2015

Effectiveness of school-based smoking prevention curricula: systematic review and meta-analysis.

Roger E Thomas, Julie McLellan, Rafael Perera

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ open, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed, 7 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

95 citing papers in PubMed, 7 syntheses or guidelines pooled it.

  1. Pooled it
  2. A Systematic Review and Meta-analysis of School-Based Preventive Interventions Targeting E-Cigarette Use Among Adolescents.Prevention science : the official journal of the Society for Prevention Research · 2024
    Pooled it
  3. Pooled it
  4. Pooled it
  5. A Systematic Literature Review of Peer-led Strategies for Promoting Physical Activity Levels of Adolescents.Health education & behavior : the official publication of the Society for Public Health Education · 2022
    Pooled it
  6. Pooled it
  7. Pooled it
  8. Trial
  9. Trial
  10. Trial
  11. Trial
  12. Trial
  13. The Short-term Effects of ASPIRA: A Web-based, Multimedia Smoking Prevention Program for Adolescents in Romania: A Cluster Randomized Trial.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2017
    Trial
  14. Trial
  15. Trial
  16. Article
  17. Article
  18. School Staff Perspectives on Tobacco Prevention: Findings From a Statewide Educator Survey.Health education & behavior : the official publication of the Society for Public Health Education · 2026
    Article
  19. Article
  20. Article

35 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.

Roger E ThomasDepartment of Family Medicine, Faculty of Medicine, University of Calgary, Health Sciences Centre, 3330 Hospital Drive NW, Calgary, Alberta, Canada.
Julie McLellanNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
Rafael PereraNuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.

Funding

CD10-1011 Strengthening Public Health Infrastructure for Improved Health OutcomesU58CD001293 · CD · MISSISSIPPI STATE DEPARTMENT OF HEALTH · PI CURRIER, MARY M · 2010 to 2013
$1.1M
ODCDC CDC HHS U58 CD001293
6 · The paper itself

Abstract

objectiveTo assess effectiveness of school-based smoking prevention curricula keeping children never-smokers.

designSystematic review, meta-analysis. DATA: MEDLINE (1966+), EMBASE (1974+), Cinahl, PsycINFO (1967+), ERIC (1982+), Cochrane CENTRAL, Health Star, Dissertation Abstracts, conference proceedings. DATA SYNTHESIS: pooled analyses, fixed-effects models, adjusted ORs. Risk of bias assessed with Cochrane Risk of Bias tool.

setting50 randomised controlled trials (RCTs) of school-based smoking curricula.

participantsNever-smokers age 5-18 (n=143,495); follow-up ≥6 months; all countries; no date/language limitations.

interventionsInformation, social influences, social competence, combined social influences/competence and multimodal curricula. OUTCOME MEASURE: Remaining a never-smoker at follow-up.

resultsPooling all curricula, trials with follow-up ≤1 year showed no statistically significant differences compared with controls (OR 0.91 (0.82 to 1.01)), though trials of combined social competence/social influences curricula had a significant effect on smoking prevention (7 trials, OR 0.59 (95% CI 0.41 to 0.85)). Pooling all trials with longest follow-up showed an overall significant effect in favour of the interventions (OR 0.88 (0.82 to 0.95)), as did the social competence (OR 0.65 (0.43 to 0.96)) and combined social competence/social influences curricula (OR 0.60 (0.43 to 0.83)). No effect for information, social influences or multimodal curricula. Principal findings were not sensitive to inclusion of booster sessions in curricula or to whether they were peer-led or adult-led. Differentiation into tobacco-only or multifocal curricula had a similar effect on the primary findings. Few trials assessed outcomes by gender: there were significant effects for females at both follow-up periods, but not for males.

conclusionsRCTs of baseline never-smokers at longest follow-up found an overall significant effect with average 12% reduction in starting smoking compared with controls, but no effect for all trials pooled at ≤1 year. However, combined social competence/social influences curricula showed a significant effect at both follow-up periods. SYSTEMATIC REVIEW REGISTRATION: Cochrane Tobacco Review Group CD001293.

Indexed as

CurriculumSmoking PreventionAdolescentChildChild, PreschoolHealth EducationHumansRandomized Controlled Trials as TopicSchoolsSex FactorsSocial SkillsPREVENTIVE MEDICINEPUBLIC HEALTH

Identifiers

PMID25757946
PMCPMC4360839

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.