Victimisation in other- and self-directed violence as a function of ethnicity and primary diagnosis among inpatients with serious mental illness.

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Among individuals with serious mental illness (SMI), victimisation has been found to increase the risk of engaging in other- and self-directed violence. However, rates of victimisation within this population have been found to vary by ethnic group and primary diagnosis. This study primarily aimed to examine the relationship between victimisation and other- and self-directed violence among a sample of inpatients with SMI during the first 3 months of admission. The role of ethnicity and primary diagnosis were also explored. This cross-sectional study utilised data from South London and Maudsley's (SLaM) anonymised database. Participants (n = 7,265) were aged over 18 upon admission, of White British, Black African, Black Caribbean or Asian ethnicity and had a primary diagnosis of major mood disorder, mania or psychosis. Among a sample of inpatients with SMI, victimisation increased the risk of other-directed violence but not self-directed violence. While Black African ethnicity was associated with an increased risk of other-directed violence, all minority ethnic groups had a decreased risk of self-directed violence compared to White British ethnicity. Those with a primary diagnosis of mania or psychosis were observed to be at increased risk of other-directed violence and decreased risk of self-directed violence compared to those with a major mood disorder. Inpatients with SMI who have experienced victimisation are at an increased risk of engaging in other-directed violence during the first 3 months of admission.