RESUMEN
The present retrospective study was conducted by review of records of last five years from 1996 to 2000, among 1497 drug addicts, admitted in a selected drug addicts treatment centre in Dhaka, with an aim to find out the trend of occurrence of hepatitis B infection among the drug addicts, as well as the trend of the risk factors. It was found from the study that during the period of five years, among the total drug addicts, sixty-nine addicts were found to be hepatitis B positive as determined by HBsAg status. The main contributing risk factors were found to be history of exposure to the commercial sex workers (CWS), injecting drug use (IDUs) and needle sharing. It was also found that the trend of hepatitis B infection was gradually falling down among the drug addicts probably due to reduction of the risk factors, especially the injection of drugs. It can be recommended that as a considerable portion of (NUDS) have shown evidence of hepatitis B infection, especially those who were using and sharing needles with others. Therefore, for protecting them from this dreadful infection, drug addicts should be counseled to avoid the above high risk behavior.