Impact of early childhood adversities on adult psychiatric disorders
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This study investigated international adoptees who were taken out of their problematic environments as a consequence of their adoption to determine the effects of early adversities on adult psychiatric disorders, and to study whether these effects emerged de novo after childhood.
A total of 1,364 adoptees (63.5% of the baseline sample) were followed. Parents provided information about early adversities prior to adoption, and mental health problems in childhood and adolescence. In adulthood, adoptees completed a standardized interview, generating DSM-IV diagnoses.
Children who experienced multiple adversities had an increased risk of having anxiety disorders (OR = 2.22; 95% CI: 1.11–4.45), mood disorders (OR = 2.20; 95% CI: 1.00–4.86) or substance abuse/dependence (OR = 3.81; 95% CI: 1.62–8.98) in adulthood. Several effects remained significant after correction for mental health problems in childhood and adolescence.
Severe early adversities increase the risk of adult psychopathology, even when children are taken out of their problematic environments. Results suggest that psychiatric disorders may arise de novo after childhood due to early experiences.
Keywordschild abuse child neglect long-term effects DSM-IV adoption
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