Abstract
In December 2002, the author conducted a comprehensive review of indicators of use of illicit substances in the San Francisco Bay Area. Cocaine use prevalence appears to be rising again, after a significant decline in the late 1990s. The shift away from smoking crack and toward snorting powder cocaine persists. The former predominance of B lacks among users continues to ebb. Heroin use indicators consistently show a peak in 1999, followed by a significant decline. The average age of users keeps increasing. Localstreet prices of heroin have risen considerably since 2001. Marijuana indicators suggest a continued increase in prevalence. Methamphetamine indicators are mixed. Usage is still widespread, and risky injection practices among gay/bisexual men remain a major factor for HIV incidence. Incidence of new HIV infection declined between 1997 and 2001 for heterosexual drug injectors, but increased for gay male and transsexual injectors.
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