Changes in adolescents with borderline personality features and caregivers after dialectical behaviour multifamily group therapy

Abstract

Dialectical Behaviour Therapy (DBT) is an effective treatment for symptoms of Borderline Personality Disorder (BPD) and has been adapted to adolescent population (DBT-A). The objective of this pilot study was to determine if DBT-A skill group as a stand-alone treatment could improve rearing styles and emotion regulation in adolescents with BPD features and their parents. We designed a 12-week skills group intervention with 14 adolescents with BPD features and their caregivers. Participants (81.82% female) ranged in age from 14 to 17 (M= 15.55 SD=.82).We tested the results of the intervention using the non-parametric Wilcoxon test and calculated effect sizes. To understand individual changes, we reported clinical reliable change (CRC). Acceptability of the intervention was also evaluated. The intervention was effective for improving rearing styles (more affectionate and less criticism) in parents and adolescents. Changes in emotion regulation processes were mixed. Some of the changes were stable 6 months after intervention. Participants reported good levels of satisfaction with the intervention. A DBT-A multifamily group intervention could modify potential mechanisms related with the developing BPD as rearing styles. The duration of the intervention could not be enough to improve emotion regulation processes. Developing early interventions with adolescents with BPD features could modify mechanisms that prevent the establishment of BDP.