ArticleBMJ open2019
Cost-effectiveness of physical activity interventions in adolescents: model development and illustration using two exemplar interventions.
Article in BMJ open, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.
- How the COVID-19 pandemic and related school closures reduce physical activity among children and adolescents in the WHO European Region: a systematic review and meta-analysis.The international journal of behavioral nutrition and physical activity · 2023Pooled it
- Cost-effectiveness of a programme to address sedentary behaviour in older adults: results from the SITLESS RCT.European journal of public health · 2022Trial
- A whole family-based physical activity promotion intervention: findings from the families reporting every step to health (FRESH) pilot randomised controlled trial.The international journal of behavioral nutrition and physical activity · 2020Trial
- Willingness to pay for measures to increase use of active school transport.The European journal of health economics : HEPAC : health economics in prevention and care · 2026Article
- Public health interventions aimed at children aged 5-19 years funded by local authorities in England: a scoping review of economic analyses.BMC public health · 2025Article
- Cost-Effectiveness of a Mobile Health Program for Pre-elderly Adults.Journal of medical systems · 2025Article
- Comparison of Elicit AI and Traditional Literature Searching in Evidence Syntheses Using Four Case Studies.Cochrane evidence synthesis and methods · 2025Article
- Prevention Lab: a predictive model for estimating the impact of prevention interventions in a simulated Italian cohort.BMC public health · 2024Article
- The effectiveness of secondary-school based interventions on the future physical activity of adolescents in Aotearoa New Zealand: a modelling study.The international journal of behavioral nutrition and physical activity · 2024Article
- A Nationwide Physical Activity Intervention for 654,500 Adults in Singapore: Cost-Utility Analysis.JMIR public health and surveillance · 2024Article
- Cost-effectiveness of physical activity intervention in children - results based on the Physical Activity and Nutrition in Children (PANIC) study.The international journal of behavioral nutrition and physical activity · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
objectiveTo develop a model to assess the long-term costs and health outcomes of physical activity interventions targeting adolescents.
designA Markov cohort simulation model was constructed with the intention of being capable of estimating long-term costs and health impacts of changes in activity levels during adolescence. The model parameters were informed by published literature and the analysis took a National Health Service perspective over a lifetime horizon. Univariate and probabilistic sensitivity analyses were undertaken.
settingSchool and community.
participantsA hypothetical cohort of adolescents aged 16 years at baseline.
interventionsTwo exemplar school-based: a comparatively simple, after-school intervention and a more complex multicomponent intervention compared with usual care. PRIMARY AND SECONDARY OUTCOME MEASURES: Incremental cost-effectiveness ratio as measured by cost per quality-adjusted life year gained.
resultsThe model gave plausible estimates of the long-term effect of changes in physical activity. The use of two exemplar interventions suggests that the model could potentially be used to evaluate a number of different physical activity interventions in adolescents. The key model driver was the degree to which intervention effects were maintained over time.
conclusionsThe model developed here has the potential to assess long-term value for money of physical activity interventions in adolescents. The two applications of the model indicate that complex interventions may not necessarily be the ones considered the most cost-effective when longer-term costs and consequences are taken into account.
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Registered trials
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.