OUTCOMES OF A RISK-REDUCTION INTERVENTION WITH HIGH-RISK POPULATIONS - THE HARLEM AIDS PROJECT

Many studies of interventions with high-risk populations have reported reductions in risk behaviors. To assess effectiveness of intervention s, data are also needed on the characteristics of subjects lost to fol low-up, and on follow-up risk behaviors for subjects who were not part icipants in the intervention. This paper reports on a study conducted in Harlem, New York, recruiting 1,770 injection drug users (IDUs) and sex partners of IDUs, randomly assigned to two interventions. Repeated -measures analyses for the two intervention groups and those who parti cipated in no intervention indicated that all groups reported signific ant reductions in risk behaviors, with no group effect. Comparisons of those followed-up and not followed-up indicate that those followed-up were less likely to: be homeless, be Latinos, and to use ''shooting g alleries.'' The discussion focuses on the need to assess outcomes for all types of participants, and to distinguish the impact of interventi ons from other explanations for behavior changes.