1. Review and meta-analysis of the association between self-reported sharing of needles/syringes and hepatitis C virus prevalence and incidence among people who inject drugs in Europe 
Norah E. Palmateer, Sharon J. Hutchinson, Hamish Innes, Christian Schnier, Olivia Wu, David J. Goldberg, Matthew Hickman 
International Journal of Drug Policy 
Volume 24, Issue 2, Pages (March 2013)
DOI: /j.drugpo
Copyright © 2012 Elsevier B.V. Terms and Conditions

2. Fig. 1
Papers identified in the literature review. Note that although the prevalence and incidence components of the review were carried out separately, the numbers are combined here for brevity. The excluded papers may therefore contain some duplicates; however, the reasons for exclusion are presented for the respective components of the review.
International Journal of Drug Policy  , DOI: ( /j.drugpo )
Copyright © 2012 Elsevier B.V. Terms and Conditions

3. Fig. 2
Forest plot of unadjusted odds ratios of the association between needle/syringe sharing and HCV infection among PWID and the random effects (DerSimonian and Laird) pooled estimate. The size of the boxes represents the weight assigned to each study. The overall effect size estimate is indicated by a diamond, with the 95% confidence intervals being indicated by its width. (OR=odds ratio; CI=confidence interval).
International Journal of Drug Policy  , DOI: ( /j.drugpo )
Copyright © 2012 Elsevier B.V. Terms and Conditions

4. Fig. 3
Plot of sample mean/median time since onset of injecting vs. the log odds ratio for studies reporting the former (n=8).
International Journal of Drug Policy  , DOI: ( /j.drugpo )
Copyright © 2012 Elsevier B.V. Terms and Conditions

5. Fig. 4
Plot of sample HCV prevalence vs. the log odds ratio for studies reporting the former (n=19).
International Journal of Drug Policy  , DOI: ( /j.drugpo )
Copyright © 2012 Elsevier B.V. Terms and Conditions

6. Fig. 5
Funnel plot of the unadjusted odds ratio (on the log scale) versus the standard error of the log odds ratio for the each of the included studies (n=19).
International Journal of Drug Policy  , DOI: ( /j.drugpo )
Copyright © 2012 Elsevier B.V. Terms and Conditions