British opiate addicts: an 11-year follow-up.

A cohort of 83 British addicts from one clinic was followed-up after 11 years; Home Office records and medical notes were personally searched to trace current status. Twenty-nine were still using drugs, 37 were not known to be using drugs, and 17 had died. The group still using drugs had become markedly more stable on parameters of drug use, criminality, and social stability over the follow-up period.