A compromise solution between overlapping and overlooking DSM personality disorders in Chinese psychiatric practice

Area of Science:

• Psychiatry
• Clinical Psychology
• Mental Health Research

Background:

• The Diagnostic and Statistical Manual-5 (DSM-5) outlines personality disorders (PDs).
• Overlapping PD diagnoses present challenges in clinical settings.
• Evaluating alternative diagnostic models is crucial for improving accuracy.

Purpose of the Study:

• To investigate the degree of overlap among DSM-5 Personality Disorders in a Chinese high-risk clinical population.
• To explore a transitional model for implementing DSM-5 PDs.
• To assess the suitability of the alternative DSM-5 model for personality disorders in China.

Main Methods:

• A sample of 982 outpatients with at least one diagnosed PD was recruited from the Shanghai Mental Health Center.
• Diagnostic assessments included a personality diagnostic questionnaire and a structured clinical interview.
• Cluster and principal component analyses were employed to explore diagnostic models.

Main Results:

• 22.3% of patients met criteria for at least one of six PDs under the alternative DSM-5 model.
• 20.3% of patients with PD met criteria for at least two PDs.
• A transitional model with 7 PD categories showed a 24.1% overlap rate, suggesting better appropriateness for China.

Conclusions:

• The alternative DSM-5 model for personality disorders simplifies diagnoses and reduces overlaps in Chinese psychiatric practice.
• This model is preferable to the current DSM-5 PD diagnostic system.
• Implementing simplified PD categories enhances diagnostic clarity and clinical utility.