Accuracy of perceptions of hepatitis B and C status: cross sectional investigation of opiate addicts in treatment

Abstract
We collected data on 106 injecting opiate addicts attending a methadone maintenance clinic in London. Sufficient blood was obtained for 90 hepatitis C virus tests and for 84 hepatitis B virus tests (when blood was insufficient, priority was given to hepatitis C). We present data for the 90 addicts from whom blood was obtained.