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. 2014 Aug;104(8):e112-8.
doi: 10.2105/AJPH.2014.301893. Epub 2014 Jun 12.

Sources of racial/ethnic differences in awareness of HIV vaccine trials

Michael P Arnold  1 , Michele Andrasik, Stewart Landers, Shelly Karuna, Matthew J Mimiaga, Steven Wakefield, Kenneth Mayer, Susan Buchbinder, Beryl A Koblin
Affiliations

Sources of racial/ethnic differences in awareness of HIV vaccine trials

Michael P Arnold et al. Am J Public Health. 2014 Aug.

Abstract

Objectives: We explored the relative effects of 2 awareness components-exposure and attention-on racial/ethnic differences in HIV vaccine trial awareness among men who have sex with men (MSM).

Methods: Surveys assessing awareness of and attitudes toward HIV vaccine trials were administered to 1723 MSM in 6 US cities. Proxy measures of exposure included use of HIV resources and other health care services, community involvement, income, and residence. Attention proxy measures included research attitudes, HIV susceptibility, and HIV message fatigue. Using logistic regression models, we assessed the extent to which these proxies accounted for racial/ethnic differences in vaccine trial awareness.

Results: White MSM reported significantly (P < .01) higher rates of HIV vaccine trial awareness (22%) compared with Latino (17%), Black (13%) and "other" (13%) MSM. Venue-based exposure proxies and research-directed attitudinal attention proxies were significantly associated with awareness, but only accounted for the White-Latino disparity in awareness. No proxies accounted for the White-Black or White-"other" differentials in awareness.

Conclusions: Sources of disparities in awareness of HIV vaccine trials remain to be explained. Future trials seeking to promote diverse participation should explore additional exposure and attention mediators.

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