Abstract
ObjectivesTo estimate the prevalence of direct and indirect syringe sharing among intravenous drug users (IDUs) attending a harm reduction center in Catalonia (Spain) and to identify factors associated with risk behaviors. MethodsA cross-sectional study was conducted between 2008 and 2009 in harm reduction centers. Behavioral data were collected using anonymous questionnaires administered by trained interviewers. ResultsOf the 748 respondents, 31.5% had shared syringes at least once in the previous 6 months and 55.2% reported sharing injection paraphernalia (spoons, water, filters). A higher risk of syringe sharing was found among IDUs who injected daily (OR=1.5), injected cocaine (OR=1.6), had less than half their supply of syringes from a free source (OR=2.5), had an IDU sexual partner (OR=1.8) or who reported indirect sharing (OR=4.1). A higher risk of indirect sharing was found in respondents who had an illegal source of income (OR=1.5), injected daily (OR=1, 5), injected cocaine (OR=1.4), reported sharing syringes (OR=3.9), or who reported a previous overdose (OR=1.5). ConclusionsDespite the widespread use of harm reduction programs in Catalonia, a significant proportion of IDUs continue to practise injection-related risk behaviors. Further reductions in risk behaviors could be achieved by improving access to all sterile injecting equipment, especially among cocaine injectors and IDUs who inject frequently, and by including IDU sexual partners within the current network of harm reduction centers.
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