Self-reported testing, HIV status and associated risk behaviours among people who inject drugs in Europe: important differences between East and West.

Aims: To describe HIV-related risk behaviours, HIV testing and HIV status among people who inject drugs (PWIDs) in the 2000 in European countries with high-prevalence HIV epidemics among PWID.

Methods: Data from 12 cross-sectional studies among PWID from seven countries were used. Meta-analysis was used to synthesize the data and meta-regression to explain heterogeneity [in addition to deriving adjusted odds ratios (AORmeta)].