POs are an important component of street drug users' drug-taking regimes, especially those who are Physically Ill Chemical Abusers (PICA). Future research is needed to model PO use, misuse, and diversion among this population.

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OBJECTIVES. This study reports on a large, national cohort of women with injection drug-using sex partners. Information is provided on demographic characteristics; human immunodeficiency virus (HIV) risk factors, including unprotected sex and incidence of sexually transmitted diseases; use of noninjected drugs; HIV serostatus; and other selected health variables. METHODS. A sample of 5162 heterosexual women was recruited for a national acquired immunodeficiency syndrome (AIDS) research and demonstration project. A structured interview was administered, and the women had the option of undergoing HIV testing. Statistical analyses compared three groups on variables of interest: women with single sex partners, women with multiple partners, and women with multiple partners who exchanged sex for drugs and/or money. RESULTS. These groups differed significantly on virtually all of the demographic and risk variables examined. Women with multiple partners who exchanged sex for drugs and/or money were at higher risk for HIV than women in the other groups, even when selected demographic variables were controlled. CONCLUSIONS. Research is needed on the efficacy of prevention efforts involving these diverse groups of women at risk for AIDS.

Although Hispanics are overrepresented in AIDS cases in the United States, little information is available to help understand differences in drug and sex risk behaviors in Hispanic subgroups, needed to develop appropriate prevention programs. This study reports on HIV-related risk behaviors in three groups of Hispanic prostitutes recruited in the United States: Dominican (77), recruited in Washington Heights, NY, Mexican (151), recruited in El Paso, 7X; and Puerto Rican (48), recruited in East Harlem, NY Ethnographic interviews were conducted with a subsample of subjects to examine cultural meaning of risk behaviors; structured interviews were conducted with subjects to describe demographic characteristics and summarize levels of risk behaviors. Results indicated that the labels Hispanic and prostitute obfuscated important differences related to geographic and cultural factors. To be effective for diverse Hispanic groups, HIV prevention efforts and interventions must be based on knowledge of these differences.