Variations in needle sharing practices among intravenous drug users in Possil (Glasgow).

Glasgow has an intravenous drug using (IVDU) population which is probably larger but hitherto less infected with the human immunodeficiency virus (HIV) than IVDUs elsewhere in Scotland. This 1988 study of 50 Glasgow IVDUs reports disturbingly high rates of sharing injecting equipment, and points to imprisonment as a possible factor in increasing such risk taking behaviour.