Faculty Bibliography

Studies were reviewed with respect to three different target groups for preventing AIDS among intravenous (IV) drug users by (a) providing drug abuse treatment for those who want to stop injecting drugs, (b) providing "safer" injection for those who are likely to continue injecting, and (c) preventing drug injection among those who are at high risk for beginning to inject. The studies reviewed were limited to those that include "hard" data: validated self-reports, seroprevalence outcomes, or self-reports of behavior that is the opposed to any of the demand characteristics generated by the research setting. For two groups of current IV drug users--those entering drug treatment and those continuing to inject--these hard data studies show rapidly induced AIDS risk reduction but suggest a need for large-scale change maintained over long time periods. In terms of preventing initial injection, alternative forms of intense drug use have emerged but have not supplanted drug injection, and basic knowledge of AIDS does not appear to deter initial drug injection.

Considerable voluntary risk reduction has occurred among IVDUs in New York City. The purpose of the AIDS Outreach Project was to improve upon the existing level of risk reduction by providing information and anonymous HIV testing to street-recruited IVDUs. Intake and follow-up interviews were conducted with 121 subjects (44% of 276 at intake), with a mean of 4.5 months between interviews. Significant risk reduction occurred in many drug and sexual risk behaviors, although not in bleach use, and more than half of the subjects continued to engage in high-risk sexual behavior. An analysis of differences in risk reduction between early and later intake groups indicated that external trends were not sufficient to account for observed risk reduction. Among subjects engaged in high-risk behavior at intake, those who injected less or were enrolled in drug abuse treatment were more likely to stop high-risk drug injecting. Subjects who (at intake) engaged in less frequent unprotected sex, or who had had sex with someone with AIDS, were more likely to stop high-risk sexual behavior. The majority of subjects at low risk at intake maintained low-risk behavior. Informational interventions appear to be most successful among those IVDUs already engaging in lower levels of risk behavior. More effective methods are needed for those whose level of risk behavior is greater. These might include peer pressure and distributing bleach (as opposed to only providing information about bleach).

An informal survey of knowledge about and behaviors relevant to the spread of AIDS was conducted on the street in New York City during October 1986. The sample (n = 204) includes IV drug users (60%) and others (40%). The informal nature of the interview suggests that respondents gave "salient" answers rather than the complete answers that would be expected in a formal interview situation. A smaller proportion of respondents reported salient knowledge about drug-related transmission of AIDS than had been found in other populations, using formal interview methods. A close association was found between any accurate knowledge about spread of AIDS and likelihood of practicing one or more risk reduction behaviors. New users (persons who had been using drugs for only 1 or 2 years) were significantly less likely than others to have salient knowledge about AIDS transmission and also less likely to practice risk reduction measures.

Previous studies have reported that intravenous drug users (IVDUs) have made considerable drug-use risk reduction, but less sexual risk reduction. This paper presents findings about sexual risk reduction by street-recruited IVDUs in New York City, and examines the predictors of sexual risk reduction. Sixty-one per cent of these street-recruited IVDUs have initiated deliberate sexual risk reduction in order to avoid AIDS. For the total sample (n = 568), as well as for the male IVDUs, specific health belief and social influence factors were significant predictors of sexual risk reduction. For female IVDUs, drug-risk reduction, having a friend or acquaintance who practices sexual risk reduction, and wanting to have a(nother) child were significant predictors of sexual risk reduction. These findings suggest the importance of social support and community organization to promote risk reduction.