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Condom use among injection drug users accessing a supervised injecting facility.
  1. Brandon DL Marshall (bmarshall{at}cfenet.ubc.ca)
  1. British Columbia Centre for Excellence in HIV/AIDS, Canada
    1. Evan Wood (uhri-ew{at}cfenet.ubc.ca)
    1. British Columbia Centre for Excellence in HIV/AIDS, Canada
      1. Ruth Zhang (rzhang{at}cfenet.ubc.ca)
      1. British Columbia Centre for Excellence in HIV/AIDS, Canada
        1. Mark W Tyndall (mtyndall{at}cfenet.ubc.ca)
        1. British Columbia Centre for Excellence in HIV/AIDS, Canada
          1. Julio SG Montaner (jmontaner{at}cfenet.ubc.ca)
          1. British Columbia Centre for Excellence in HIV/AIDS, Canada
            1. Thomas Kerr (uhri-tk{at}cfenet.ubc.ca)
            1. BC Centre for Excellence in HIV/AIDS, Canada

              Abstract

              Objectives: Although supervised injecting facility (SIF) use has been associated with reductions in injection-related risk behaviours, the impact of SIFs on the sexual behaviour of injection drug users (IDU) has not been thoroughly investigated. Therefore, we sought to examine the patterns and predictors of condom use among SIF users in Vancouver, Canada.

              Methods: We performed a longitudinal analysis of the factors associated with consistent condom use among IDU recruited from within an SIF.

              Results: Among 1090 individuals, 650 (59.6%) reported a sexual partner in the past six months at baseline. Consistent condom use was reported by 108 (25.3%) and 205 (61.6%) individuals reporting regular or casual partners, respectively. After two years of observation, these proportions increased to 32.9% and 69.8%, respectively. In multivariate analysis, predictors of consistent condom use with regular partners included: HIV positivity (adjusted odds ratio [AOR]=2.23, 95%CI: 1.51-3.31), injecting with a sex partner (AOR=0.50, 95%CI: 0.37-0.68), enrolment in addiction treatment (AOR=0.68, 95%CI: 0.52-0.89), and time since recruitment (AOR=1.29, 95%CI: 1.06-1.55 per year). Predictors of consistent condom use with casual partners included: HIV positivity (AOR=1.70, 95%CI: 1.03-2.81), syringe borrowing (AOR=0.54, 95%CI: 0.32-0.91) and syringe lending (AOR=0.52, 95%CI: 0.32-0.84).

              Conclusions: Our results demonstrate that among SIF users, consistent condom use was more frequent among casual sex partners and among HIV positive individuals. Importantly, while the prevalence of consistent condom use was low at baseline, it increased over time. Our findings suggest a possible beneficial effect of the SIF on safer sexual practices.

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