Migration, ethnicity, and psychosis: toward a sociodevelopmental model

Area of Science:

• Psychiatry
• Epidemiology
• Sociology

Background:

• Consistent evidence shows higher incidence of all psychoses in migrant and minority ethnic populations globally.
• The underlying reasons for these disparities are not well understood, with various genetic, neurodevelopmental, and psychosocial explanations proposed.

Purpose of the Study:

• To evaluate the evidence for and against proposed explanations for elevated psychosis rates in migrant and minority ethnic groups.
• To synthesize existing findings and propose an integrated sociodevelopmental pathway model for psychosis.
• To outline future research directions, including a planned Europe-wide study.

Main Methods:

• Review and critical evaluation of existing literature on risk factors for psychosis in specific populations.
• Identification of research gaps concerning direct investigation of risk factors in migrant and minority ethnic groups.
• Development of a theoretical model integrating social and developmental factors.

Main Results:

• Limited studies directly investigate specific risk factors in these populations.
• Existing research suggests social factors, including childhood separation, discrimination, and ethnic density, are potentially important.
• A diverse range of social factors are implicated, highlighting the need for a synthesized approach.

Conclusions:

• Social factors appear to be significant contributors to the higher rates of psychosis observed in migrant and minority ethnic populations.
• An integrated sociodevelopmental pathway model is proposed to explain these disparities.
• Future research, including a large-scale European study, will test aspects of this model.