Does racial discrimination cause mental illness?

Abstract
Different rates of mental illness have been reported in ethnic groups in the UK (Nazroo, 1997). Early work was criticised because of methodological flaws but more rigorous studies have confirmed high community prevalence rates of depression in both South Asian and African-Caribbean populations (Nazroo, 1997), high incidence and prevalence rates of psychosis in African-Caribbean groups (see Bhugra & Cochrane, 2001, for review), and higher rates of suicide in some South Asian groups (Neeleman et al, 1997) compared with the White British population. Similarly high rates have not been reported in the countries of origin of these groups (Hickling & Rodgers-Johnson, 1995; Patel & Gaw, 1996), which has led to a search for possible causes within the UK.