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AJPH First Look, published online ahead of print Apr 16, 2009
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June 2009, Vol 99, No. 6 | American Journal of Public Health 1023-1031
© 2009 American Public Health Association
DOI: 10.2105/AJPH.2008.147835

FRAMING HEALTH MATTERS

Concurrent Partnerships and HIV Prevalence Disparities by Race: Linking Science and Public Health Practice

Martina Morris, PhD, Ann E. Kurth, PhD, Deven T. Hamilton, MPH, James Moody, PhD and Steve Wakefield

Martina Morris is with the Departments of Sociology and Statistics, University of Washington, Seattle. Ann E. Kurth is with the School of Nursing and the Department of Global Health, University of Washington, Seattle. Deven T. Hamilton is with the Department of Medical Education and Biomedical Informatics, University of Washington, Seattle. James Moody is with the Department of Sociology, Duke University, Durham, NC. Steve Wakefield is with the HIV Vaccine Trial Network, Vaccine and Infectious Diseases Institute, Fred Hutchinson Cancer Research Center, Seattle.

Correspondence: Requests for reprints should be sent to Martina Morris, PhD, Department of Statistics, Box 354322, University of Washington, Seattle, WA 98195 (e-mail: morrism{at}u.washington.edu).

Concurrent sexual partnerships may help to explain the disproportionately high prevalence of HIV and other sexually transmitted infections among African Americans. The persistence of such disparities would also require strong assortative mixing by race. We examined descriptive evidence from 4 nationally representative US surveys and found consistent support for both elements of this hypothesis. Using a data-driven network simulation model, we found that the levels of concurrency and assortative mixing observed produced a 2.6-fold racial disparity in the epidemic potential among young African American adults.






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