European Heart Journal Advance Access originally published online on August 29, 2006
European Heart Journal 2006 27(20):2468-2472; doi:10.1093/eurheartj/ehl201
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Short-term effects of Italian smoking regulation on rates of hospital admission for acute myocardial infarction
Cancer Epidemiology Unit, CeRMS and Center for Oncologic Prevention Piemonte, University of Turin, Via Santena 7, 10126 Turin, Italy
Received 26 May 2006; revised 25 July 2006; accepted 4 August 2006; online publish-ahead-of-print 29 August 2006.
* Corresponding author. Tel: +39 011 6334628; fax: +39 011 6334664. E-mail address: fbaroneadesi{at}yahoo.it
See page 2385 for the editorial comment on this article (doi:10.1093/eurheartj/ehl266)
Aims We used the hospital discharge records of Piedmont region (northern Italy) to evaluate whether a national law banning smoking in public resulted in a short-term reduction in hospital admissions for acute myocardial infarction (AMI).
Methods and results Rates of admission for AMI before the ban (October–December 2004) and during the ban (February–June 2005) were analysed. Each period was compared with the corresponding period 12 months before. Among persons aged under 60, the number of admissions for AMI decreased significantly after the introduction of the ban: from 922 cases in February–June 2004 to 832 cases in February–June 2005 (sex- and age-adjusted rate ratio, 0.89; 95% confidence interval, 0.81–0.98). No decrease was seen before the ban. No effect was found among persons aged at least 60. We estimated that the observed reduction in active smoking after the introduction of the ban could account for a 0.7% decrease in admissions for AMI during the study period, suggesting that most of the observed effect (11%) might be due to the reduction of passive smoking.
Conclusion Our study, based on a population of about 4 million inhabitants, suggests that smoke-free policies may result in a short-term reduction in admissions for AMI.
Key Words: Epidemiology • Infarction • Lifestyle • Risk factors • Smoking
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