Figure 2From: High regional variability of HIV, HCV and injecting risks among people who inject drugs in Poland: comparing a cross-sectional bio-behavioural study with case-based surveillanceTrends in newly diagnosed HIV cases among PWID in Poland, 2006 to 2007 vs. 2004 to 2005, by region. Numbers of newly diagnosed cases represent estimated number of newly diagnosed cases based on multiple imputations. The increases refer to a 20% or more difference; 2004 to 2005 is the time of the bio-behavioural study.Back to article page