• R F Maio, P F Waller, F C Blow, E M Hill, and K M Singer.
• University of Michigan, Department of Surgery, Ann Arbor, USA. ronmaio@umich.edu
• Acad Emerg Med. 1997 Apr 1;4(4):256-62.

Objective1) To determine the prevalence of current alcohol abuse/alcohol dependence (AA/AD) among the full injury range of ED motor vehicle crash (MVC) patients; and 2) compare AA/AD and non-AA/AD patient characteristics.MethodsThis was a prospective cohort study using a stratified random sample of MVC patients aged > or = 18 years presenting to a university hospital and university-affiliated community hospital ED from May 1, 1992, to August 30, 1994. A diagnosis of current AA/AD was based on the alcohol section of the Diagnostic Interview Survey (DIS). Other measurements included the presence of blood alcohol (BAC+), Injury Severity Score (ISS-85), occupant status (driver/passenger), age, gender, seat belt use, culpability for crash, and ED disposition (admitted vs released). A weighted prevalence was determined; subgroups were compared using t-tests, chi 2, 2-factor analysis, and logistic regression modeling; alpha = 0.05.Results1,161 patients were studied. The weighted prevalence of current AA/AD was 22.5%; 53% of these patients were released from the ED. Almost 45% of the patients with current AA/AD were BAC-. When controlling for BAC and AA/AD, greater injury severity and culpability were associated with a BAC+, but not with current AA/AD.ConclusionAlmost 23% of ED MVC patients have current AA/AD; BAC testing does not accurately identify these patients. Intervention strategies must be directed to both admitted and released patients.

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