"The hepatitis prevalence rates among ever-IDUs at treatment was obtained analogously to the HIV prevalence rate described above, and was also collected through Standard Table 9. An overview of the hepatitis B and C prevalence rates for 2003-2010 are given in Table 6.3 and Table 6.4, respectively (ST9P2_2003-2011_BE). Regarding Hepatitis B, 2.8% (Free Clinic) and 0% (De Sleutel) of the patients tested in 2010, tested positive for HbsAg, 56.3% (Free Clinic) and 0% (De Sleutel) for antiHBC and 55.2% (Free Clinic) and 20.0% (De Sleutel) for antiHBs. Regarding Hepatitis C, 80% (Free Clinic) and 28.1% (De Sleutel) of the patients tested positive for HCVab in 2010. The patient population of the Free Clinic is known to be a strongly marginalized population, explaining the high prevalence rates. Comparing the results for the 2010 prevalences with previous years, does not reveal significant time trends."

Source

Deprez, Nathalie, et al., "2011 National Report (2010 data) to the EMCDDA by the Reitox National Focal Point" (Brussels, Belgium: OD Public Health and Surveillance, Scientific Institute of Public Health, October 2011), WIV-ISP/EPI REPORTS N° 002, p. 129.
http://www.emcdda.europa.eu/a…