The Impact of Smoke-Free Workplace Laws on Acute Myocardial Infarction Deaths (English)


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A Public Health Seminar delivered by Melanie Pickett on Monday, April 26, 2010.

The rate of acute myocardial infarction (AMI) deaths in Massachusetts was examined before and after the implementation of a comprehensive smoke-free workplace law in July 2004. The impact of the state law in cities/towns with and without prior local smoking bans and the effect of the local laws were examined for the period 1999 through 2006.

Following the implementation of the state law, there was a 7.4% (95% CI: 3.3%, 11.4%) decrease in the AMI mortality rate. There was an impact of the state ban in cities/towns with no prior local smoking ban (9.2% decrease, p<0.001), but no observed impact if there was a prior local smoking ban. However, there was a non-significant 4.9% (95% CI: -5.0%, 13.9%) decrease associated with the local smoking ban, which preceded the effect of the state ban. The effect of the state ban was modest (-1.6%) in the first twelve months after implementation, but much larger after the first 12 months (-18.6%, p<0.001). Overall, an estimated 270 fewer AMI deaths per year were associated with the comprehensive statewide smoke-free workplace laws in Massachusetts.


Author:
Melanie Pickett
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The Impact of Smoke-Free Workplace Laws on Acute Myocardial Infarction Deaths by Melanie Pickett is licensed under a Creative Commons Attribution-Share Alike 3.0 United States License.
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