The relationship between delusions and violence: findings from the East London first episode psychosis study.

Importance: Psychotic persons who are violent often explain their violence as being due to delusions. However, research has failed to confirm associations between delusions and violent behavior.

Objectives: To investigate which delusional beliefs and characteristics are associated with violent behavior during a first episode of psychosis and whether these associations are mediated by affect due to delusions.

Raised incidence rates of all psychoses among migrant groups: findings from the East London first episode psychosis study.

Context: Certain black and minority ethnic groups are at increased risk for psychoses. It is unknown whether risk for second- and later-generation black and minority ethnic groups in the United Kingdom is universally increased or varies by ethnicity, population structure, or diagnostic category.

Objectives: To examine whether excess risk in black and minority ethnic groups varies by generation status and to determine whether this is explained solely by an excess of broadly defined schizophrenia.