High-Risk Behaviors Among Men Who Have Sex With Men in 6 US Cities: Baseline Data From the EXPLORE Study
Beryl A. Koblin, PhD,
Margaret A. Chesney, PhD,
Marla J. Husnik, MS,
Sam Bozeman, MPH,
Connie L. Celum, MD,
Susan Buchbinder, MD,
Kenneth Mayer, MD,
David McKirnan, PhD,
Franklyn N. Judson, MD,
Yijian Huang, PhD,
Thomas J. Coates, PhD and
the EXPLORE Study Team
Beryl A. Koblin is with the New York Blood Center, New York, NY. Margaret A. Chesney and Thomas J. Coates are with the School of Medicine, University of California, San Francisco. Marla J. Husnik and Yijian Huang are with the Statistical Center for HIV/AIDS Research and Prevention, Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Wash. Sam Bozeman is with Abt Associates Inc, Cambridge, Mass. Connie L. Celum is with the Department of Medicine, University of Washington, Seattle. Susan Buchbinder is with the San Francisco Department of Public Health. Kenneth Mayer is with the Fenway Community Health Center, Boston, Mass. David McKirnan is with the Howard Brown Health Center, Chicago, Ill. Franklyn N. Judson is with Denver Public Health and the University of Colorado Health Sciences Center, Denver.
FIGURE 1—Percentages of men reporting sexual risk behaviors at baseline visit, by serostatus of partners and number of partners at baseline visit: EXPLORE, 19992001.
Oral = unprotected receptive oral sex with ejaculation; URA = unprotected receptive anal sex; UIA = unprotected insertive anal sex. P values for 1 primary partner vs 1 non-primary partner < .02; P values for 1 primary partner vs >1 partners all non-significant except for oral with HIV-positive partners (P = .02); P values for 1 non-primary vs >1 partner <.0001.