This paper reports the detoxification experience and outcome at 6 mont
hs and 1 year following detoxification from alcohol in 160 patients ad
mitted to a south-east London in-patient detoxification unit. Patients
' socio-demographic characteristics are also described. The sample was
predominantly middle-aged, mainly male, and highly dependent on alcoh
ol. Subjects had been drinking heavily for many years and suffered phy
sical and social complications in consequence. The rate of convulsions
was 3.1% and of delirium tremens 1.25%. The details of the level of d
rug usage during detoxification and the assessment of severity of the
withdrawal syndrome are also reported. The severity of the withdrawal
syndrome and the incidence of significant complications of withdrawal
were higher in those with a previous history of four or more episodes
of detoxification, a previous history of withdrawal fits or evidence o
f high levels of tolerance and dependence assessed either by the Sever
ity of Alcohol Dependence Questionnaire (SADQ) or by drinking on a typ
ical heavy drinking day in excess of 24 U of alcohol. It is suggested
that subjects with one or more of these attribute should be treated on
an inpatient, rather than an out-patient, basis unless adequate suppo
rt and monitoring systems are in place. Overall, patients made improve
ments on a wide range of social and psychological variables, but the '
abstinent' and 'controlled drinking' groups made significantly higher
improvements on all variables in both follow-up periods. When patients
improved their drinking status and reduced the levels of drink-relate
d physical and social complications, in both time periods, their use o
f social and health resources decreased significantly. Living circumst
ances at intake were predictive of drinking status at both followup st
ages. The amount drunk on a heavy drinking day, at both follow-up stag
es, was predicted by severity of withdrawal, SADQ and living circumsta
nces at intake in that order of importance.