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Jones MR, Barnoya J, Stranges S, et al. Cardiovascular Events Following Smoke-Free Legislations: An Updated Systematic Review and Meta-Analysis. Curr Environ Health Rep. 2014;1(3):239-249doi: 10.1007/s40572-014-0020-1.
Jones, M. R., Barnoya, J., Stranges, S., Losonczy, L., & Navas-Acien, A. (2014). Cardiovascular Events Following Smoke-Free Legislations: An Updated Systematic Review and Meta-Analysis. Current environmental health reports, 1(3), 239-249. https://doi.org/10.1007/s40572-014-0020-1
Jones, Miranda R, et al. "Cardiovascular Events Following Smoke-Free Legislations: An Updated Systematic Review and Meta-Analysis." Current environmental health reports vol. 1,3 (2014): 239-249. doi: https://doi.org/10.1007/s40572-014-0020-1
Jones MR, Barnoya J, Stranges S, Losonczy L, Navas-Acien A. Cardiovascular Events Following Smoke-Free Legislations: An Updated Systematic Review and Meta-Analysis. Curr Environ Health Rep. 2014 Sep 01;1(3):239-249. doi: 10.1007/s40572-014-0020-1. PMID: 25328861; PMCID: PMC4198310.
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Curr Environ Health Rep. 2014 Sep 01;1(3):239-249. doi: 10.1007/s40572-014-0020-1.

Cardiovascular Events Following Smoke-Free Legislations: An Updated Systematic Review and Meta-Analysis.

Current environmental health reports

Miranda R Jones, Joaquin Barnoya, Saverio Stranges, Lia Losonczy, Ana Navas-Acien

Affiliations

  1. Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD.
  2. Division of Public Health Sciences, Department of Surgery, Washington University in St. Louis, St. Louis MO.
  3. Division of Health Sciences, University of Warwick Medical School, Coventry, UK.
  4. Highland Hospital of Alameda County, Oakland, CA.

PMID: 25328861 PMCID: PMC4198310 DOI: 10.1007/s40572-014-0020-1

Abstract

BACKGROUND: Legislations banning smoking in indoor public places and workplaces are being implemented worldwide to protect the population from secondhand smoke exposure. Several studies have reported reductions in hospitalizations for acute coronary events following the enactment of smoke-free laws.

OBJECTIVE: We set out to conduct a systematic review and meta-analysis of epidemiologic studies examining how legislations that ban smoking in indoor public places impact the risk of acute coronary events.

METHODS: We searched MEDLINE, EMBASE, and relevant bibliographies including previous systematic reviews for studies that evaluated changes in acute coronary events, following implementation of smoke-free legislations. Studies were identified through December 2013. We pooled relative risk (RR) estimates for acute coronary events comparing post- vs. pre-legislation using inverse-variance weighted random-effects models.

RESULTS: Thirty-one studies providing estimates for 47 locations were included. The legislations were implemented between 1991 and 2010. Following the enactment of smoke-free legislations, there was a 12 % reduction in hospitalizations for acute coronary events (pooled RR: 0.88, 95 % CI: 0.85-0.90). Reductions were 14 % in locations that implemented comprehensive legislations compared to an 8 % reduction in locations that only had partial restrictions. In locations with reductions in smoking prevalence post-legislation above the mean (2.1 % reduction) there was a 14 % reduction in events compared to 10 % in locations below the mean. The RRs for acute coronary events associated with enacting smoke-free legislation were 0.87 vs. 0.89 in locations with smoking prevalence pre-legislation above and below the mean (23.1 %), and 0.87 vs. 0.89 in studies from the Americas vs. other regions.

CONCLUSION: The implementation of smoke-free legislations was related to reductions in acute coronary event hospitalizations in most populations evaluated. Benefits are greater in locations with comprehensive legislations and with greater reduction in smoking prevalence post-legislation. These cardiovascular benefits reinforce the urgent need to enact and enforce smoke-free legislations that protect all citizens around the world from exposure to tobacco smoke in public places.

Keywords: Cardiovascular diseases; Legislations; Smoke-free policy; Tobacco smoke pollution

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