Antisocial behaviour in adolescent suicide.

Antisocial behaviour among adolescent suicide victims (44 males, 9 females) was investigated in a nationwide psychological autopsy study of suicides in Finland. The data were collected through interviews of the victims' relatives and attending health care personnel, and from official records. Antisocial behaviour was reported among 43% of the victims. Separation from parents, parental alcohol abuse and parental violence were common among male victims with antisocial behaviour. Their psychosocial adjustment was poor, and they had experienced severe stressors. Depressive disorders were common among all suicides, but male victims with antisocial behaviour had more often alcohol abuse and comorbid mental disorders compared with victims without antisocial behaviour. The results indicate a strong relatedness between adolescent suicide and antisocial behaviour. Recognition and treatment of manifest mental symptoms and evaluation of suicide risk among adolescents with antisocial behaviour and substance abuse is emphasized. Antisocial symptoms with relatively short duration and not severe enough to meet the criteria for actual antisocial disorders also need to be taken into account.