Trends in self-reported HIV risk behavior: injection drug users in Los Angeles.

This article reviews trends in HIV risk behaviors across serial samples of Los Angeles injection drug users interviewed between 1987 and 1991. All indicators are based on self-reported behavior during the year before the interview. Findings show persistent drug-related risk behaviors. No decrease has occurred in needle sharing with strangers/acquaintances or at shooting galleries. No increase has occurred in self-reported avoidance of needle sharing for as long as 1 year. The only exception to this pattern is a significant increase in bleach use among injection drug users who share needles. Findings are mixed regarding sex-related risk behaviors. Drug users have not reduced their yearly number of sex partners, but condom use has become more prevalent among nonmonogamous drug users. We conclude that preventive education will need to adopt new strategies for addressing persistent risk behaviors while at the same time reinforcing favorable trends that have already begun.