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. Author manuscript; available in PMC: 2009 Jun 8.
Published in final edited form as: Prev Med. 2007 Apr 14;45(1):9–11. doi: 10.1016/j.ypmed.2007.03.013

Table 1.

Effects of clean indoor air ordinances on community hospital discharge rates

Location/Study Dates of Study Period Number of cases in each study Relative Risk 95% CI End Points
Helena, Montana Sargent, et al, (2004) June through November (the months the law was in effect) from 1998 to 2003 304 0.60 0.21, 0.99 Acute myocardial infarction (ICD-9 410)
Pueblo, Colorado Bartecchi, et al, (2006) January 2002 through December 2004 2794 0.73 0.63, 0.85 Acute myocardial infarction (ICD-9 410)
Piedmont, Italy Barone-Adesi, et al, (2006) January 2001 through June 2005 4213 0.89 0.81, 0.98 Acute myocardial infarction (ICD-9 410) in persons under 60
Bowling Green, Ohio Khuder, et al, (2007) January 1999 through June 2005 (beginning 6 months after law went into effect) 1109 0.61 0.55, 0.67 Ischemic heart disease (ICD-9 410–414) and heart failure (ICD-9 428)
Pooled Estimate (random effects model) 0.73 0.56, 0.89