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Previous Volume 353:735-737 August 18, 2005 Number 7 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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To the Editor: The analysis by Hannan and colleagues (May 26 issue)¹ comparing coronary-artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) is seriously flawed. The data were derived retrospectively from two separate New York State registries. The 12 risk factors for increased mortality that made up the propensity model are more common among patients undergoing CABG than among those undergoing PCI. Differences between the two groups in variables such as the incidence of carotid-artery disease (14.0 percent vs. 3.5 percent, respectively) and chronic obstructive pulmonary disease (COPD) (16.4 percent vs. 5.9 percent) have not been previously reported in registries . . . [Full Text of this Article]

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