Beyond diagnosis: symptom patterns across complex PTSD and borderline personality disorder

Area of Science:

• Psychiatry
• Clinical Psychology
• Mental Health Research

Background:

• Complex post-traumatic stress disorder (cPTSD) and borderline personality disorder (BPD) exhibit overlapping clinical features.
• This diagnostic overlap prompts debate on whether cPTSD and BPD are distinct conditions.
• Accurate diagnosis and treatment are complicated by these shared symptoms.

Purpose of the Study:

• To clarify symptomatic similarities and differences between cPTSD and BPD.
• To contribute empirical data to the ongoing diagnostic debate.
• To utilize psychometric assessments for comparative analysis.

Main Methods:

• Recruited 97 female participants: 34 with cPTSD, 25 with BPD, and 38 healthy controls.
• Administered validated psychometric instruments assessing depression, anxiety, emotion regulation, psychodynamic dysfunction, guilt, functioning, trauma symptoms, and borderline traits.
• Analyzed group differences using one-way ANOVAs and post-hoc comparisons.

Main Results:

• cPTSD patients reported significantly higher trauma exposure, posttraumatic symptom severity, dissociative symptoms, affective symptoms, and functional impairment than BPD patients and controls.
• No significant differences were observed between cPTSD and BPD groups in borderline symptom severity, anxiety, emotion regulation difficulties, guilt-related distress, or psychodynamic dysfunction.
• Trauma-related symptoms emerged as key differentiators.

Conclusions:

• Trauma-related symptoms are significant differentiators between cPTSD and BPD.
• Findings support the conceptualization of cPTSD as a distinct disorder.
• Results should be interpreted cautiously due to the non-use of ICD-11 specific diagnostic instruments.