Kanna Hayashi1, Evan Wood, Lee Wiebe, Jiezhi Qi, Thomas Kerr. 1. British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, Vancouver, Canada; Interdisciplinary Studies Graduate Program, University of British Columbia, Vancouver, Canada.
Abstract
OBJECTIVE: Vancouver, Canada has been the site of an epidemic of human immunodeficiency virus (HIV) amongst injection drug users (IDU). In response, the Vancouver Area Network of Drug Users (VANDU) initiated a peer-run outreach-based syringe exchange programme (SEP) called the Alley Patrol. We conducted an external evaluation of this programme, using data obtained from the Vancouver Injection Drug Users Study (VIDUS). METHODS: Using generalised estimating equations (GEE) we examined the prevalence and correlates of use of the SEP amongst VIDUS participants followed from 1 December 2000 to 30 November 2003. RESULTS: Of 854 IDU, 233 (27.3%) participants reported use of the SEP during the study period. In multivariate GEE analyses, service use was positively associated with living in unstable housing (adjusted odds ratio [AOR]=1.83, 95% confidence interval [CI]: 1.39-2.40), daily heroin injection (AOR=1.31, 95% CI: 1.01-1.70), daily cocaine injection (AOR=1.34, 95% CI: 1.03-1.73), injecting in public (AOR=3.07, 95% CI: 2.32-4.06), and negatively associated with needle reuse (AOR=0.65, 95% CI: 0.46-0.92). CONCLUSION: The VANDU Alley Patrol SEP succeeded in reaching a group of IDU at heightened risk for adverse health outcomes. Importantly, access to this service was associated with lower levels of needle reuse. This form of peer-based SEP may extend the reach of HIV prevention programmes by contacting IDU traditionally underserved by conventional syringe exchange programmes. Copyright 2010 Elsevier B.V. All rights reserved.
OBJECTIVE: Vancouver, Canada has been the site of an epidemic of human immunodeficiency virus (HIV) amongst injection drug users (IDU). In response, the Vancouver Area Network of Drug Users (VANDU) initiated a peer-run outreach-based syringe exchange programme (SEP) called the Alley Patrol. We conducted an external evaluation of this programme, using data obtained from the Vancouver Injection Drug Users Study (VIDUS). METHODS: Using generalised estimating equations (GEE) we examined the prevalence and correlates of use of the SEP amongst VIDUS participants followed from 1 December 2000 to 30 November 2003. RESULTS: Of 854 IDU, 233 (27.3%) participants reported use of the SEP during the study period. In multivariate GEE analyses, service use was positively associated with living in unstable housing (adjusted odds ratio [AOR]=1.83, 95% confidence interval [CI]: 1.39-2.40), daily heroin injection (AOR=1.31, 95% CI: 1.01-1.70), daily cocaine injection (AOR=1.34, 95% CI: 1.03-1.73), injecting in public (AOR=3.07, 95% CI: 2.32-4.06), and negatively associated with needle reuse (AOR=0.65, 95% CI: 0.46-0.92). CONCLUSION: The VANDU Alley Patrol SEP succeeded in reaching a group of IDU at heightened risk for adverse health outcomes. Importantly, access to this service was associated with lower levels of needle reuse. This form of peer-based SEP may extend the reach of HIV prevention programmes by contacting IDU traditionally underserved by conventional syringe exchange programmes. Copyright 2010 Elsevier B.V. All rights reserved.
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