Characteristics associated with the risk of psychosis among immigrants and their descendants in France.

Objective: To explore the sociodemographic characteristics that might explain the increased incidence of psychosis among immigrants and their descendants in France.

Methods: Data were collected for all subjects with first contact for psychosis aged between 18 and 64 years, in two catchment areas in the Paris region. Incidence rates (IR) and incidence rate ratios (IRR) were adjusted for gender and age.