Aims. To determine prevalence rates of alcohol problems among emergenc
y room patients. Design. This was a cross-sectional survey including p
atient interviews and record reviews. The questionnaire included the A
lcohol Use Disorders Identification Test to screen for hazardous or ha
rmful alcohol use (alcohol problems). It also contained questions rega
rding the chief complaint and factors precipitating the admission. Set
ting. Emergency rooms of three regional hospitals in Thailand. Partici
pants. Consecutive emergency room admissions aged 14 and older, admitt
ed from 18.00-02.00 h. Findings. Risk factors for alcohol problems inc
luded male gender, age 20-49, higher monthly income, less than univers
ity graduate education status and admission to the northeast regional
ER. Among non-trauma patients, those with alcohol-related diagnoses an
d certain gastrointestinal disorders had the highest rates of alcohol
problems. Patients with transportation injuries were twice as likely,
and those with assault-, fall-, or burn-related injuries were at least
three times more likely to screen positive compared to the non-injure
d comparison group. The estimated overall prevalence rate of alcohol p
roblems for this population, adjusted for age and diagnostic classific
ation, was 0.39 for males and 0.08 for females. Conclusion. Especially
among patients with specified diagnoses, the emergency room is an ide
al setting for implementing alcohol screening and intervention program
mes in Thailand.