Aspects of psychiatric admissions of migrants to hospitals in Perth, Western Australia

Objective: Recent Australian Government initiatives have emphasised problems with service provision to the ethnic mentally ill. This study aims to address the paucity of contemporary data describing the disposition of the ethnic mentally ill in hospital settings. Method: Patterns of admissions for psychiatric disorders to all hospitals in Perth, Western Australia, for the 3 years from 1990 to 1992, of migrants and the Australian born were compared using data from the Western Australian Mental Health Information System. Results: The overall rates for European migrants showed a 'normalisation' towards those of the Australian-born. There were high rates for the schizophrenic spectrum disorders in Polish and Yugoslavian (old terminology) migrants. There were low admission rates for South-East Asian migrants, predominantly those from Vietnam and Malaysia. Rates for alcoholism were low in Italian and all Asian migrants. There were high rates of organic psychosis, especially in those older than 75 years, among the Italian and Dutch migrants. The relative risk of a first admission in the 3 years being an involuntary admission to a mental hospital was almost twice that of the Australian-born for migrants from Poland, Yugoslavia, Malaysia and Vietnam. Conclusions: The results imply the possibility of significant untreated and/or undiagnosed psychiatric morbidity in the South-East Asian-born. They also indicate a need for further exploration of the unexpectedly high levels of psychiatric morbidity among some ethnic elderly groups, specifically the Dutch-and Italian-born. The findings demonstrate the persistence of high rates of presentation for psychotic disorders among Eastern European-born populations, many years post migration.