The social determinants of psychosis in migrant and ethnic minority populations: a public health tragedy.

High rates of schizophrenia and other psychoses have been repeatedly found in migrant populations. However, the development of public health responses has been hindered by unfounded claims that the high rates are an artefact of misdiagnosis. Recent research implicating exposure to social adversity across the life course as the key explanation for these high rates has the potential to inform initiatives to tackle this major public health problem.