Ethnic differences in substance use, sexual risk behaviors, and psychosocial factors in a sample of heterosexual methamphetamine users.

Ethnic differences in measures of substance use, sexual risk behaviors, and psychosocial factors (depression, stigma, self-esteem) were examined in a sample of 402 heterosexual methamphetamine users (55.0% Caucasian, 29.9% African American, 15.1% Latino) who participated in a sexual risk reduction intervention between June 2001 and March 2005 in San Diego, California. Participants were primarily male (67%) and noncollege graduates (72%) and belonged to the low-income group (66%). African Americans were older when they first used methamphetamine and had used fewer grams in the past 30 days; Caucasians were more likely to inject. A larger percentage of African Americans reported anonymous sex partners in the past 2 months. African Americans reported lower levels of social stigma, and Caucasians reported lower self-esteem. Limitations and potential applications of these findings to prevention and treatment programs for ethnic minority populations are discussed.