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Journal of Public Health Advance Access published online on April 2, 2008
Journal of Public Health, doi:10.1093/pubmed/fdn021
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© The Author 2008, Published by Oxford University Press on behalf of Faculty of Public Health. All rights reserved

HIV risks associated with incarceration among injection drug users: implications for prison-based public health strategies{dagger}


Daniel Werb, Research Assistant1
Thomas Kerr, Research Scientist1,2
Will Small, Ethnographic Researcher1
Kathy Li, Senior Statistician1
Julio Montaner, Director1,2
Evan Wood, Research Scientist1,2

1 British Columbia Centre for Excellence in HIV/AIDS, St. Paul's Hospital, 608 – 1081 Burrard Street, Vancouver, B.C., V6Z 1Y6, Canada
2 Department of Medicine, University of British Columbia, Vancouver, Canada


Address correspondence to Evan Wood, E-mail: uhri{at}cfenet.ubc.ca, dgraham{at}cfenet.ubc.ca


  Abstract

Background Recent policy announcements in Canada and the United States may potentially affect the risk environment for HIV transmission among incarcerated injection drug users (IDU). We sought to evaluate the potential impact of incarceration on HIV risk behaviour among the IDU enrolled in a prospective cohort study.

Methods We examined patterns of incarceration among 1247 IDU participants enrolled in a 6-year prospective cohort study in Vancouver, Canada, and tested for potential associations between HIV risk behaviour and incarceration. Correlates of incarceration were identified using generalized estimating equations (GEE).

Results At baseline, factors significantly associated with incarceration included daily injection heroin and injection cocaine use and inconsistent condom use with casual sexual partners. In a GEE analysis, factors independently associated with incarceration included: used syringe borrowing (adjusted odds ratio [AOR] = 1.36; [95% CI: 1.16–1.60]), used syringe lending (AOR = 1.31; [95% CI: 1.12–1.55]) and inconsistent condom use with casual sexual partners (AOR = 1.16; [1.02–1.33]). All variables P < 0.05.

Conclusion In our study, incarceration was independently associated with HIV transmission and acquisition behaviours. These findings suggest that increased rates of incarceration of IDU may be associated with increased HIV transmission among this group.

Keywords: drug policy, HIV, IDU, incarceration, prison, syringe sharing

{dagger} Presented in part at the 16th Annual Canadian Conference on HIV Research, Toronto, ON, Canada, 26–29 April 2007.


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