Impact of ethnicity on the prevalence of psychiatric disorders among migrants in Germany.
OBJECTIVE
Studies on psychiatric disorders among migrants have described higher rates, especially of schizophrenia. Some evidence points to the possibility of misdiagnosis for this higher rate; other studies point to the underrepresentation of migrants in psychiatric services, leading to artefactual epidemiological data.


METHODS
All admission records of migrants to a psychiatric clinic from 1993 to 1995 were assessed for diagnosis, symptomatology and treatment.


RESULTS
Admissions of 408 migrants, 8.1% of total admission, were assessed. Of these, 38.7% received a diagnosis of a schizophrenic disorder, significantly more than the other clinic patients. The mean age at admission was 34.0 years, at onset of illness 28.6 years and at time of migration 20.4 years. Only 8.3% were mentally ill at the time of migration. Language problems correlated with the diagnosis of a schizophrenic disorder.


CONCLUSIONS
An underrepresentation of migrants shows differences in the use of psychiatric services. Some evidence from the mental status and reported language problems may explain the higher rate of schizophrenia due to misdiagnosis.
Haasen
C
C
Clinic for Psychiatry and Psychotherapy, University of Hamburg, Germany.
Lambert
M
M
Mass
R
R
Krausz
M
M
D000328:Adult; D005006:Ethnicity; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000208:ethnology*; D015995:Prevalence; D014171:Transients and Migrants