Frequency of borderline personality disorder among psychiatric outpatients in Shanghai.

The objective of this study was to investigate the frequency, clinical characteristics, and comorbidity of borderline personality disorder (BPD) among psychiatric outpatients in two clinics at Shanghai Mental Health Center. A cross-sectional investigation was conducted. From 3,075 outpatients screened using the Personality Diagnostic Questionnaire-IV+, 2,284 patients positive for a personality disorder were assessed using the Structured Clinical Interview for DSM-IV Personality Disorders. The frequency of BPD among the psychiatric outpatients was 5.8%, with a frequency of 3.5% among males and 7.5% among females (p < .01). BPD was found to have extensive comorbidity with Axis I and II disorders. This study proves that BPD does occur in China. The detected frequency among outpatients is lower than that reported in North America.

[A cross-sectional survey on personality disorder in mental disorder outpatients in Shanghai].

OBJECTIVE: To study the prevalence and risk factors for personality disorder (PD) outpatients attending in for psychiatric and psychological counseling in Shanghai. METHODS: 3075 subjects were sampled by systematic sampling method from outpatients in psycho-counseling clinics and psychiatric clinics in Shanghai Mental Health Center. Based on DSM-IV criteria, personality disorders were assessed by both questionnaires (personality diagnostic questionnaire, PDQ-4+) and interviews (structured clinical interview for DSM-IV Axis II, SCID-II). Logistic regression analysis was performed to determine the significant independent contributor to PD. RESULTS: 71.3% of the outpatients were found having pathological personality by using questionnaire of self rating PD scale. 982 outpatients (31.9%) met criteria for at least one personality disorder by using structured clinical interview. Younger age (OR = 1.8, 95%CI: 1.5 - 2.1), single or divorced (OR = 1.6, 95%CI: 1.4 - 1.9), psychological counseling outpatients (OR = 1.2, 95%CI: 1.1 - 1.3), mood and outpatients with neurosis disorders (OR = 1.7, 95%CI: 1.4 - 2.0) were more frequently assigned as personality disorders. Data from logistic regression analysis showed that patients of tender age, not nurtured and raised by their parents, with introvert characters were related risk factors of PD. CONCLUSION: High prevalence rate of PD was found in this sample of Chinese outpatients, especially in those psychological counseling outpatients with mood or neurosis disorders. More attention should be paid to the recognition and intervention of PD in outpatients with mental disorders.