SynthesisBMJ (Clinical research ed.)2002
Effect of smoke-free workplaces on smoking behaviour: systematic review.
Synthesis in BMJ (Clinical research ed.), 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 413 papers, 11 of them syntheses 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
413 citing papers in PubMed, 11 syntheses or guidelines pooled it.
- Tobacco and cannabis use in the young 'Not in Employment, Education or Training' population: A systematic review and meta-analysis.Addiction (Abingdon, England) · 2026Pooled it
- Post-policy evaluation lags of tobacco and nicotine product policies: a systematic review from the United States, Canada, Australia, and the United Kingdom.Frontiers in public health · 2026Pooled it
- Associations of smoke-free policies in multi-unit housing with smoking behavior and second-hand smoke exposure: A systematic review.Addiction (Abingdon, England) · 2025Pooled it
- A systematic review and network meta-analysis of population-level interventions to tackle smoking behaviour.Nature human behaviour · 2024Pooled it
- A systematic review for the impacts of global approaches to regulating electronic nicotine products.Journal of global health · 2023Pooled it
- The effect of smoke-free legislation on the mortality rate of acute myocardial infarction: a meta-analysis.BMC public health · 2019Pooled it
- Prevalence of tobacco use in healthcare workers: A systematic review and meta-analysis.PloS one · 2019Pooled it
- Strategies to improve the implementation of workplace-based policies or practices targeting tobacco, alcohol, diet, physical activity and obesity.The Cochrane database of systematic reviews · 2018Pooled it
- Dietary interventions to prevent and manage diabetes in worksite settings: a meta-analysis.Journal of occupational health · 2018Pooled it
- Smokefree legislation effects on respiratory and sensory disorders: A systematic review and meta-analysis.PloS one · 2017Pooled it
- Impact of institutional smoking bans on reducing harms and secondhand smoke exposure.The Cochrane database of systematic reviews · 2016Pooled it
- Eliminating children's tobacco smoke exposure: a pathway to bioverified abstinence among low-income maternal smokers in the Babies Living Safe and Smokefree (BLiSS) trial.Journal of behavioral medicine · 2023Trial
- Long-term Results From the FRESH RCT: Sustained Reduction of Children's Tobacco Smoke Exposure.American journal of preventive medicine · 2020Trial
- Implementation of Occupational Sun Safety at a 2-Year Follow-Up in a Randomized Trial: Comparison of Sun Safe Workplaces Policy Intervention to Attention Control.American journal of health promotion : AJHP · 2019Trial
- A Pilot Clinical Trial of Smoking Cessation Services Implemented in the Workplace for Service Industry Employees.American journal of health promotion : AJHP · 2019Trial
- Sun Safe Workplaces: Effect of an Occupational Skin Cancer Prevention Program on Employee Sun Safety Practices.Journal of occupational and environmental medicine · 2018Trial
- A Proactive Smoking Cessation Intervention for Socioeconomically Disadvantaged Smokers: The Role of Smoking-Related Stigma.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2018Trial
- The impact of multiple interventions to reduce household exposure to second-hand tobacco smoke among women: a cluster randomized controlled trial in Kalutara district, Sri Lanka.BMC public health · 2017Trial
- Using ecological measures of smoking trigger exposure to predict smoking cessation milestones.Psychology of addictive behaviors : journal of the Society of Psychologists in Addictive Behaviors · 2015Trial
- Enterprise ownership, workplace culture, and smoking cessation difficulty in China: A cross-sectional data analysis.Tobacco induced diseases · 2026Article
353 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
2 authors.
Funding
Abstract
objectiveTo quantify the effects of smoke-free workplaces on smoking in employees and compare these effects to those achieved through tax increases.
designSystematic review with a random effects meta-analysis. STUDY SELECTION: 26 studies on the effects of smoke-free workplaces.
settingWorkplaces in the United States, Australia, Canada, and Germany.
participantsEmployees in unrestricted and totally smoke-free workplaces.
main outcome measuresDaily cigarette consumption (per smoker and per employee) and smoking prevalence.
resultsTotally smoke-free workplaces are associated with reductions in prevalence of smoking of 3.8% (95% confidence interval 2.8% to 4.7%) and 3.1 (2.4 to 3.8) fewer cigarettes smoked per day per continuing smoker. Combination of the effects of reduced prevalence and lower consumption per continuing smoker yields a mean reduction of 1.3 cigarettes per day per employee, which corresponds to a relative reduction of 29%. To achieve similar reductions the tax on a pack of cigarettes would have to increase from $0.76 to $3.05 (0.78 euro to 3.14 euro) in the United States and from 3.44 pounds sterling to 6.59 pounds sterling (5.32 euro to 10.20 euro) in the United Kingdom. If all workplaces became smoke-free, consumption per capita in the entire population would drop by 4.5% in the United States and 7.6% in the United Kingdom, costing the tobacco industry $1.7 billion and 310 million pounds sterling annually in lost sales. To achieve similar reductions tax per pack would have to increase to $1.11 and 4.26 pounds sterling.
conclusionsSmoke-free workplaces not only protect non-smokers from the dangers of passive smoking, they also encourage smokers to quit or to reduce consumption.
Indexed as
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What OpenQuestion holds
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.