Borderline symptoms and suicidality/self-injury in late adolescence: Prospectively observed relationship correlates in infancy and childhood

Abstract

The primary objective was to assess whether prospectively observed quality of parent–child interaction in infancy and middle childhood contributed to the prediction of borderline symptoms and recurrent suicidality/self-injury in late adolescence. Adolescents (mean 19.9 years) from 56 families participating in a longitudinal study since infancy (retention rate 74%) were assessed on the SCID-II for symptoms of borderline personality disorder (BPD), including suicidality/self-injury. Early clinical risk was indexed by clinical referral to parent–infant services. Attachment security and parent–child interaction were assessed from videotape at 18 months and 8 years. Severity of childhood abuse was rated from interview and self-report measures. Maternal withdrawal in infancy was a significant predictor of both borderline symptoms and suicidality/self-injury in late adolescence. Disorganized controlling child behavior at age 8 contributed independently to the prediction of borderline symptoms. The effect of maternal withdrawal was independent of, and additive to, variability explained by severity of childhood abuse. Borderline symptoms and suicidality/self-injury may be preceded developmentally by disturbed interactions as early as 18 months of age. A parent–child transactional model is proposed to account for the findings.