Figure.

Actual and predicted monthly rates of AMI hospitalizations per 100,000 population before and after implementation of a smoke-free public places law in 2004: Lexington-Fayette County, Kentucky, 2001–2006^a

^aThe vertical line represents the date the smoke-free law went into effect (April 2004). The Poisson regression model used to determine the predicted rates demonstrated a 23% decrease in AMI hospitalizations for women after the law went into effect, while the change in rates for men was not significant.

AMI = acute myocardial infarction