Associations Between Mental Disorders, Personality Disorders, and Filicide-Suicide and Parental Suicide: A Nationwide Cohort Study.

Children in parental‐suicide families generally had a higher risk of observed separation anxiety disorder, major depressive disorder, persistent depressive disorder, bipolar disorder, and schizophrenia than children in other families, although separation anxiety disorder and schizophrenia did not reach statistical significance, and all these disorders were not observed in children in filicide‐suicide families.

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Results The study encompassed 1,898,299 families, revealing that filicide‐suicide is notably rare, with an incidence of 1.64 deaths per 100,000 newborn children from 2004 to 2020, with an increasing trend observed after 2014.

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