Cost effectiveness of Streetworks' needle exchange program of edmonton

Objective: To conduct a cost-effectiveness analysis of the Edmonton Streetw orks' needle exchange program, in terms of the additional cost per HIV infe ction averted. The main outcome measures were needle use with and without S treetworks, HIV cases averted, and program costs. Method: We conducted interviews and HIV saliva tests on a sample of street- involved intravenous drug users (IDU) who are regular Streetworks' clients. Outcomes were used in a cost-effectiveness model. Results: It is projected that the program has a cost-effectiveness of $9,50 0 (Canadian) per HIV infection delayed for one year. Conclusions: The discounted cost per case averted is less than the cost of a case of AIDS. Continuing the program is a dominant strategy.