From the *Mailman School of Public Health, Columbia University; New York, New York; †Cecil G. Sheps Center for Health Services Research, ‡School of Medicine, and §School of Public Health, University of North Carolina, Chapel Hill, North Carolina; ¶College of Public Health, University of Georgia, Athens, Georgia
Supported by the Office of the Vice Chancellor for Research and Economic Development, the Department of Social Medicine, and the Institute for African American Research at the University of North Carolina; the Center for the Advancement of Health; and the Multidisciplinary Track of the W. K. Kellogg Foundation’s Kellogg Health Scholars Program.
Presented at the North American Congress of Epidemiology, June 2006, Seattle, WA, and the Annual Meeting of the American Public Health Association, November 2006, Boston, MA.
Correspondence: Chandra Ford, PhD, MPH, MLIS, Kellogg Health Scholar, Department of Epidemiology, 722 W. 168th St., Mailman School of Public Health, Columbia University, New York, NY 10032. E-mail: firstname.lastname@example.org.
Received for publication February 10, 2007, and accepted July 2, 2007.