[Psychiatric disorders in hospitalized internal medicine and surgical patients. Prevalence and need for treatment].

The prevalence of psychiatric disorders in general hospital inpatients can be estimated at 30-50%. In Germany, hardly any studies have provided an assessment of prevalence rates and specific treatment necessities. In this study, 400 patients from medical and surgical departments were interviewed with a structured clinical interview. The point prevalence of all psychiatric disorders (clinical diagnoses) was 46.5%. The most prevalent groups of disorders were organic brain syndromes, depressive disorders, and alcoholism. With regard to disease entities, no significant differences between the samples from internal medicine and from surgery could be found. Compared to a German population sample, only organic brain syndromes, depressive reactions and alcohol dependency tend to be higher in a general hospital. Consultation/liaison interventions were found to be necessary in nearly half of the whole sample. In one-fourth of the patients continuous psychiatric care after hospital discharge was required.