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Addiction. 2009 Apr;104(4):614-9. doi: 10.1111/j.1360-0443.2008.02474.x. Epub 2009 Feb 10.

Use of supervised injection facilities and injection risk behaviours among young drug injectors.

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Centro Nacional de Epidemiología, Instituto de Salud Carlos III, Madrid, Spain.



To study the use of supervised injection facilities (SIFs) as a predictor of safer injecting practices.


Cross-sectional study conducted with face-to-face interview using a structured questionnaire with computer-assisted personal interviewing. Dried blood spot samples were collected for human immunodeficiency virus (HIV) and hepatitis C virus (HCV) antibody testing.


All participants were street-recruited by chain referral methods in Madrid and Barcelona.


A total of 249 young heroin drug injectors recruited by the ITINERE cohort study in two Spanish cities with SIFs.


The main outcome measures were self-reported injecting behaviours and SIFs attendance.


SIF users were more marginalized socially than non-users. They were also more often regular injectors (weekly or more versus sporadic) [odds ratio (OR) = 4.9, 95% confidence interval (CI): 2.7-8.8], speedball users (OR = 2.5, 95% CI: 1.5-4.3) and anti-HCV-positive (OR = 3.1, 95% CI: 1.4-7.1). In the logistic regression analysis, using SIFs was associated independently with not borrowing used syringes (OR = 3.3, 95% CI: 1.4-7.7). However, no significant association was found between SIF use and not sharing injection equipment indirectly (OR = 1.1, 95% CI: 0.5-2.2).


SIFs attract highly disadvantaged drug injectors who engage none the less in less borrowing of used syringes than non-users of these facilities. The risks of indirect sharing should be emphasized when counselling SIF attendees.

[Indexed for MEDLINE]

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