This paper reviews emergency room (ER) studies from a number of countr
ies which have focused on the association of alcohol and casualties. T
he review emphasizes studies which used probability sample of patients
to represent the population of the emergency facility where the data
were collected, and which separated injured patients from patients wit
h medical conditions not due to injuries (the 'non-injured'). Reviewed
here are studies concerned with: (1) estimated prevalence of positive
blood alcohol at the time of the ER visit; (2) self-reported alcohol
consumption prior to the event resulting in a need for ER treatment; (
3) patients' descriptions of their usual drinking patterns and alcohol
-related problems; (4) predictions of casualties and of alcohol-relate
d casualties. Comparisons of findings from several countries are also
presented. Comments on limitations of ER studies as well as other issu
es pertaining to the usefulness and interpretation of such data, and f
uture directions for research in emergency room populations are discus
sed