ArticleBMC pulmonary medicine2015
Impact of a countywide smoke-free workplace law on emergency department visits for respiratory diseases: a retrospective cohort study.
Article in BMC pulmonary medicine, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 4 of them syntheses that pooled it.
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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.
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Who cites it
12 citing papers in PubMed, 4 syntheses or guidelines pooled it, 19 citations in OpenAlex.
- Evaluation of Population-Level Tobacco Control Interventions and Health Outcomes: A Systematic Review and Meta-Analysis.JAMA network open · 2023Pooled it
- Secondhand Smoke Exposure and the Risk of Chronic Obstructive Pulmonary Disease: A Systematic Review and Meta-Analysis.International journal of chronic obstructive pulmonary disease · 2023Pooled it
- Smokefree legislation effects on respiratory and sensory disorders: A systematic review and meta-analysis.PloS one · 2017Pooled it
- Legislative smoking bans for reducing harms from secondhand smoke exposure, smoking prevalence and tobacco consumption.The Cochrane database of systematic reviews · 2016Pooled it
- The impact of Shanghai's comprehensive smoke-free legislation on hospital admission and mortality rates for chronic obstructive pulmonary disease: an interrupted time series analysis.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2026Article
- Article
- Cardiovascular disease and high blood pressure trend analyses from 2002 to 2016: after the implementation of a salt reduction strategy.BMC public health · 2018Article
- Effect of tobacco control policies on perinatal and child health: a systematic review and meta-analysis.The Lancet. Public health · 2017Article
- Environmental triggers and avoidance in the management of asthma.Journal of asthma and allergy · 2017Review
- Changes in hospitalizations for chronic respiratory diseases after two successive smoking bans in Spain.PloS one · 2017Article
- Smoke-free legislation and child health.NPJ primary care respiratory medicine · 2016Review
- Taming Asthma in School-Aged Children: A Comprehensive Review.The journal of allergy and clinical immunology. In practiceReview
Corrections and comments
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
Abstract
backgroundWith the goal of reducing exposure to secondhand smoke, the state of Minnesota (MN), enacted a smoke-free law (i.e., Freedom to Breathe Act) in all workplaces, restaurants, and bars in 2007. This retrospective cohort study analyzes emergency department (ED) visits in Olmsted County, MN, for chronic obstructive pulmonary disease (COPD) and asthma over a five-year period to assess changes after enactment of the smoke-free law.
methodsWe calculated the rates of ED visits in Olmsted County, MN, with a primary diagnosis of COPD and asthma in the five-year period from January 1, 2005 to December 31, 2009. Analyses were performed using segmented Poisson regression to assess whether ED visit rates declined following enactment of the smoke free law after adjusting for potential underlying temporal trends in ED visit rates during this time period.
resultsUsing segmented Poisson regression analyses, a significant reduction was detected in asthma-related ED visits (RR 0.814, p < 0.001) but not for COPD-related ED visits following the enactment of the smoke-free law. The reduction in asthma related ED visits was observed in both adults (RR 0.840, p = 0.015) and children (RR 0.751, p = 0.015).
conclusionsIn Olmsted County, MN, asthma-related ED visits declined significantly after enactment of a smoke-free law. These results add to the body of literature supporting community health benefits of smoke-free policies in public environments and their potential to reduce health care costs.
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