We have evaluated the effect of brief intervention by an alcohol health wor
ker on alcohol consumption by 202 alcohol misusing patients. For 71 patient
s where questionnaires were successfully completed, 46 (65%) reported drink
ing less alcohol at 6 months as opposed to six (8.5%) who reported drinking
more. The overall reduction was statistically significant (P < 0.001), wit
h a mean reduction of 43%.