Substance use, depression, and mental health functioning in patients seeking acute medical care in an inner-city ED.

The study investigated the behavioral health of a consecutive sample of 5,641 adult emergency department (ED) patients aged 19 through 60 presenting for medical care in a large, inner-city hospital ED. Twenty-three percent met the criteria for major depression; average mental health functioning, as measured by the mental health component of the SF-12, was half of a standard deviation lower than in the general population; 15% met the criteria for alcohol or drug abuse/dependence in the past year. Comorbidity was high. These behavioral health disorders may complicate treatment and diagnosis of the chief presenting complaint. These findings, coupled with the high rates of these disorders, suggest the importance of screening and either beginning appropriate treatment or offering appropriate referral for such disorders in ED settings.