Alignment of Borderline Personality Disorder and Complex Post-traumatic Stress Disorder With Complex Developmental...

Area of Science:

• Psychiatry
• Child and Adolescent Psychology
• Clinical Psychology

Background:

• Adolescents in foster care often exhibit complex mental health symptoms related to maltreatment.
• Previous cluster analyses suggest these symptoms lack a clear underlying taxonomic structure.
• Investigating diagnostic alignment is crucial for understanding and treating these presentations.

Purpose of the Study:

• To examine the alignment between symptom profiles identified via cluster analysis and diagnoses of Borderline Personality Disorder (BPD) and Complex Post-traumatic Stress Disorder (C-PTSD) in adolescents in foster care.
• To assess the validity of BPD and C-PTSD constructs in this population.
• To explore the nature of complex post-maltreatment symptomatology.

Main Methods:

• Cluster analysis of maltreatment-related mental health symptoms in 230 adolescents in long-term foster care.
• Estimation of nominal DSM-5 BPD and ICD-11 C-PTSD caseness using Child Behaviour Checklist and Assessment Checklist for Adolescents algorithms.
• Examination of the alignment between derived symptom profiles and case assignments.

Main Results:

• Nineteen nominal BPD cases and three nominal C-PTSD cases were identified.
• Low C-PTSD prevalence was linked to poor concordance between PTSD and 'disturbances in self-organization' (DSO) case assignment.
• BPD and C-PTSD cases aligned with more complex and severe symptom profiles, including core BPD symptoms alongside inattention, hyperactivity, and conduct problems.

Conclusions:

• Findings offer partial support for the BPD construct in describing severe psychopathology in foster care adolescents, but not for C-PTSD.
• Symptom profiles exhibit high variability, challenging traditional diagnostic definitions.
• Further research is needed to determine if complex post-maltreatment symptoms constitute distinct, valid disorders.