Prevalence of unprotected sex among men with AIDS in Los Angeles County, California 1995-1997.

OBJECTIVE To determine the prevalence of unprotected sex among men with AIDS in Los Angeles County. DESIGN Cross-sectional study. METHODS All men aged > or = 18 years who were newly reported to the local health department with AIDS and completed a standardized interview between January 1995 and June 1997 were included in the study. Men were classified as having unprotected sex if they reported one or more sex partners during the past year with whom they had vaginal or anal sex and did not always use a condom. RESULTS Of 617 men interviewed, 29% reported unprotected sex in the past year. The prevalence of unprotected sex was highest among men < 30 years of age (43%) and those who had first learned of their HIV-positive status < 12 months prior to interview (44%). In all, 323 (52%) men reported one or more male sex partners in the past year. Of these, 22% reported unprotected insertive anal sex and 27% unprotected receptive anal sex. One or more female partners in the past year was reported by 131 (21%) men. Of these, 53% reported unprotected vaginal sex and 18% unprotected anal sex. CONCLUSIONS The findings highlight the importance of early HIV detection efforts, coupled with targeted and sustained HIV prevention services for those who test positive, to prevent ongoing transmission of the virus.