Nearly half of injection drug users disposed of their used syringes safely, yet only 28 percent acquired their needles from safe sources, according to a study of injection drug users in Baltimore, Md., conducted by researchers at the Johns Hopkins Bloomberg School of Public Health. Syringe sharing among injection drug users is a major risk factor for the spread of HIV and other diseases. Improperly discarded used needles could pose a similar risk to the entire community. The study is among the first to examine safe syringe acquisition and disposal among new, young injection drug users. The results are published in the February 2005 edition of the Journal of Drug Issues.

The study included 294 injection drug users between the ages of 15 and 30, who were a part of a larger study of HIV infection among new drug users in Baltimore and who reported injecting drugs for less than five years. They were questioned about their drug injection habits, including from whom and where they acquired their syringes and how they disposed of used syringes. "Safe sources" were the Baltimore syringe exchange program or pharmacies. "Safe disposal" was defined as discarding used syringes at syringe exchange programs, breaking the needle off before discarding or placing the syringe in a hard container before throwing it away.

According to the study, 10 percent of study participants cited the Baltimore syringe exchange program as their primary source for acquiring needles compared to 18 percent from pharmacies and 50 percent who reported needle sellers as their primary source. Twenty-two percent of the participants reported following both safe acquisition and disposal practices. Safe injection and disposal were not associated with HIV, hepatitis C or syringe sharing.

"Among the people we surveyed, those who had injected drugs for more than two years were two and a half times more likely to get there syringes from safe sources compared to those who have been injecting
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Contact: Timothy Parsons
paffairs@jhsph.edu
410-955-6878
Johns Hopkins University Bloomberg School of Public Health
24-Feb-2005

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