What is Specific to Suicide in Schizophrenia Disorder? Demographic, Clinical and Behavioural Dimensions

527 consecutive suicides, 43 of whom met criteria for schizophrenia & schizoaffective disorder, were investigated by means of proxy-based interviews using structured diagnostic instruments & personality trait assessments. Compared to other suicides, schizophrenic & schizoaffective suicides presented comparably elevated levels of impulsive aggressive traits. They also had comparable levels of family history of suicidal behaviour among first degree relatives. Overall, schizophrenics & schizoaffective suicides met criteria for fewer psychiatric disorders & were less likely to meet criteria for more than one disorder. (45 refs.)