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Reductions in Cardiovascular, Cerebrovascular, and Respiratory Mortality Following the National Irish Smoking Ban: Interruped Time-Series Analysis

Creator:

Stallings-Smith, Sericea; Zeka, Ariana; Goodman, Pat; Kabir, Zubair; Clancy, Luke;

Institution: Dublin Institute of Technology
Subject Keywords: smoking; ban; health; improvement; Ireland; research; Public and environmental health; Public Health;
Region:
Description:

Background:

Previous studies have shown decreases in cardiovascular mortality following the implementation of comprehensive smoking bans. It is not known whether cerebrovascular or respiratory mortality decreases post-ban. On March 29, 2004, the Republic of Ireland became the first country in the world to implement a national workplace smoking ban. The aim of this study was to assess the effect of this policy on all-cause and cause-specific, non-trauma mortality.

Methods:

A time-series epidemiologic assessment was conducted, utilizing Poisson regression to examine weekly age and gender-standardized rates for 215,878 non-trauma deaths in the Irish population, ages $35 years. The study period was from January 1, 2000, to December 31, 2007, with a post-ban follow-up of 3.75 years. All models were adjusted for time trend, season, influenza, and smoking prevalence.

Results:

Following ban implementation, an immediate 13% decrease in all-cause mortality (RR: 0.87; 95% CI: 0.76–0.99), a 26% reduction in ischemic heart disease (IHD) (RR: 0.74; 95% CI: 0.63–0.88), a 32% reduction in stroke (RR: 0.68; 95% CI: 0.54– 0.85), and a 38% reduction in chronic obstructive pulmonary disease (COPD) (RR: 0.62; 95% CI: 0.46–0.83) mortality was observed. Post-ban reductions in IHD, stroke, and COPD mortalities were seen in ages $65 years, but not in ages 35–64 years. COPD mortality reductions were found only in females (RR: 0.47; 95% CI: 0.32–0.70). Post-ban annual trend reductions were not detected for any smoking-related causes of death. Unadjusted estimates indicate that 3,726 (95% CI: 2,305–4,629) smoking-related deaths were likely prevented post-ban. Mortality decreases were primarily due to reductions in passive smoking.

Conclusions:

The national Irish smoking ban was associated with immediate reductions in early mortality. Importantly, postban risk differences did not change with a longer follow-up period. This study corroborates previous evidence for cardiovascular causes, and is the first to demonstrate reductions in cerebrovascular and respiratory causes.

Format:

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Suggested citation:

Stallings-Smith, Sericea; Zeka, Ariana; Goodman, Pat; Kabir, Zubair; Clancy, Luke; . () Reductions in Cardiovascular, Cerebrovascular, and Respiratory Mortality Following the National Irish Smoking Ban: Interruped Time-Series Analysis [Online]. Available from: http://publichealthwell.ie/node/774124 [Accessed: 9th April 2020].

  

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