Adversity, parental mental illness, and risk of depression in youth

Abstract

BackgroundThe association between parental severe mental illness (SMI) and depression in offspring may be due to genetic liability or adverse environments. We investigated the effect of parental SMI, SES, and adversity on depression in a sample of youth enriched for familial risk of mental illness.MethodWe assessed 217 youth (mean age 11.95, SD 4.14, range 6–24), including 167 (77%) offspring of parents with SMI. We measured exposure to childhood maltreatment and bullying with the Juvenile Victimization Questionnaire (JVQ) and Childhood Experiences of Care and Abuse (CECA) interview.ResultsIn total, 13.36% participants reported significant bullying and 40.76% had a history of childhood maltreatment. Rates of bullying and maltreatment were similar in offspring of parents with and without SMI. Maltreatment likelihood increased with decreasing socioeconomic status. Exposure to bullying (OR = 3.11, 95%CI 1.08–8.88, P = 0.03) predicted depression in offspring more strongly than family history of SMI in parents.ConclusionsAdversity, such as maltreatment and bullying, has a stronger impact on the risk of developing depression than family history of mental illness in parents. These adverse experiences are associated with socioeconomic status rather than parental mental illness.Disclosure of interestThe authors have not supplied their declaration of competing interest.