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Harlan M. Krumholz, MD; Viola Vaccarino, MD; Carlos F. Mendes de Leon, PhD
Yale University School of Medicine New Haven, Conn

Teresa E. Seeman, PhD
University of Southern California Los Angeles

Lisa F. Berkman, PhD
Harvard School of Public Health Boston, Mass

JAMA. 1996;275(2):110.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.

—In the Editorial by Drs Denke and Winker,¹ there is the unfortunate implication that our article² from the New Haven, Conn, site of the Established Populations for Epidemiologic Studies of the Elderly (EPESE) was published prematurely and should not have preceded a multicenter analysis. The comments reveal a misunderstanding of the nature of the EPESE collaboration and the special features of this observational study.

Unlike many multicenter trials, the EPESE sites are a confederation of studies with distinct sampling designs and features. Although the EPESE was a collaboration contract program, individual sites had the option to publish results separately, where unique data were available. For this reason, single-site publications from EPESE far outnumber the pooled analyses.

There are unique features of the New Haven site that led us to pursue our analysis separately. New Haven is the only site in which diagnoses of hospitalized acute . . . [Full Text PDF of this Article]

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