Other relevant studies of needle exchanges

bullet Of the 35 studies of needle exchanges published prior to 1998, 27 studies showed the needle exchange reduced injection-related HIV risk behaviors, six showed mixed or neutral results and two found negative impacts.(1)  
bullet A study of 81 cities found that, on average, HIV seroprevalence increased by 5.9 percent per year in the 52 cities without needle exchange programs and decreased by 5.8 percent per year in the 29 cities with needle exchange programs.(2)
bullet An evaluation of syringes returned to a New Haven needle exchange suggested that HIV infection among those using the exchange had been reduced by at least 33 percent.(3)
bullet A cohort study found that high-risk injection drug users in Oakland, California, reduced syringe sharing once they had access to a needle exchange program.  This finding continued to hold when other key variables were controlled.(4)
bullet A Windham, Connecticut, study found that injecting drug users turned to unsafe sources for syringes after the needle exchange was closed.(5) 
bullet A New York City study show that the rate of new HIV infections among injecting drug users had been brought down through a combination of efforts including needle exchange programs, AIDS treatment for those infected, and increased access to drug treatment.(6)


Footnotes

(1) E. Drucker, Peter Lurie, A. Wodak and P. Alcabes, 1998, "Measuring harm reduction: The effects of needle and syringe exchange programs and methadone maintenance on the ecology of HIV. AIDS. Vol. 12 (supplement A): pp. S217-230.
(2) Susan F. Hurley, Damien J. Jolley, and John M. Kaldor, 1997, "Effectiveness of needle-exchange programmes for prevention of HIV infection," The Lancet, June 21, vol. 349. pp. 1797-1800.
(3) Edward H. Kaplan, 1994, "A method for evaluating needle exchange programmes," Statistics in Medicine, vol. 13, pp. 2179-2187. 
(4) Ricky N. Bluthenthal, Alex H. Kral, Lauren Gee, Elizabeth A. Erringer, and Brian R. Edlin, 2000, "The effect of syringe exchange use on high-risk injection drug users: a cohort study," AIDS, Vol. 14, No. 5, pp. 605-611.
(5) Robert S. Broadhead, Yael Van Hulst, and Doublas D. Heckathorn, 1999, "The impact of a needle exchange's closure," Public Health Reports, September/October, Vol. 114. pp.439-447. (Abstract)  See the same authors, 1999, "Termination of an established needle-exchange: a study of claims and their impact." Social Problems, Vol. 46, No. 1, pp.46-66. (Abstract)
(6) Don C. Des Jarlais, Michael Marmor, Patricia Friedman, Stephen Titus and others, 2000, "HIV incidence among injection drug users in New York City, 1992-1997: evidence for a declining epidemic," American Journal of Public Health, March, vol. 9, no. 3, pp. 352-359.
For a list of other materials used on this website, see References.