Distribution of Personality Disorder Tendency of Outpatients in Psychological Counseling / 中国心理卫生杂志

Objective：To explore the distribution of personality disorder tendency of outpatients in psychological counseling departments.Methods：Systematic sampling was used to get the sample population from Shanghai Psychological Counseling Center.The Personality Diagnostic Questionnaire(PDQ~(+4))was administered to 1402 clients to screen personality disorders.Results：The subscales for different type of personality disorder(PD)and total score of PDQ~(+4) were higher than normal sample(e.g.total score of PDQ~(+4):client(38.23±17.04)vs.normal sample(22.79±14.10),P<0.001).The score of borderline subscales in female clients were higher than that of males [borderline:female(4.25±2.48)vs.male(3.97±2.41),P<0.05],the score of antisocial,paranoid and schizotypal subscales in male clients were higher than that of females [antisocial:female(1.31)vs.male(1.71),P<0.001;paranoid:female(2.75)vs.male(3.02),P<0.01;schizotypal:female(3.31)vs.male(3.56),P<0.05].Age stratification showed that the subscales for different type of PD of PDQ~(+4) were decreased with age [e.g.,total score of PDQ~(+4):18～24 years(41.73)vs.25～34 years(39.46)vs.35～44 years(33.88)vs.≥ 45 years(30.64),Ps<0.001],the positive rate of PDQ~(+4) subscales of obsessive-compulsive(58.5%)and avoidant PDs(54.0%)were higher than others,followed by borderline PD(44.4%).Factor analysis was used for the score of PDQ~(+4),factor 1 to 3 corresponded to cluster C,B and A personality disorders respectively,and the total variance explained 67%. Conclusion：There are different rates of personality deviation between psychological counseling clients and normal sample in China.Some traits of personality disorders can be improved with the increasing of age.The abstracted factors by factor analysis are very consistent with what originally proposed in the theory of personality disorder.It should be paid attention to PD tendency of clients during psychological counseling.

A study on the comparability of SCID-Ⅱ and PDQ-4 / 中华行为医学与脑科学杂志

Objective To study the comparability of two personality diagnostic instruments(SCID-Ⅱ and PDQ-4)in psychiatric patients. Methods One hundred and twelve mental disorder patients were investigated with the SCID-Ⅱ and PDQ-4. Results 1)Significant differences were found between groups(dividing by total scores on PDQ-4)by means of SCID-Ⅱ interviews(P＜0. 0 1). 2)Categorical personality disorder(PD)groups by means of SCID-Ⅱ interviews had hisher scores on PDQ-4 than their related non-PD groups. 3)For agreement on categorical diagnoses between SCID-Ⅱ and PDQ-4, the correlation coefficients varied from 0. 17 to 0. 57. Except for antisocial PD(r=0. 57), the others had poor-fair coefficients, as r＜0. 50. Conclusions In general, there is some correlation between SCID-Ⅱ and PDQ-4. Low agreement between PDQ-4 and SCID-Ⅱ is observed for categorical PD evaluations. Thus, PDQ-4 can't be a substitute tool for SCID-Ⅱ.

The Preliminary Study of Reliability and Validity on the Korean Version of Personality Disorder Questionnaire-4+ (PDQ-4+) / 신경정신의학

OBJECTIVES: The purpose of this study was to examine the reliability and the validity of the Korean version of Personality Disorder Questionnaire-4+ (PDQ-4+). METHODS: PDQ-4+ was administered to 540 subjects of general population group and 37 subjects of personality disorder group. For measuring concurrent reliability, we tested internal consistency, split-half reliability, test-retest reliability and correlation of item score of subscale and mean of subscale. And also, we performed factor analysis for the evaluation of validity, and t-test to group difference of the total scores between general population group and personality disorder group. RESULTS: In general population group and personality disorder group, internal consistency was above .500 (range of Cronbach alpha: .4007 to .6693) in most of the Personality disorder categories. Split-half reliability was .839 between even and odd items. Test-retest reliability done 2 weeks interval was .868. Item scores of subscales and mean of subscales showed high correlation coefficient. Group difference of the total scores between general population and personality disorder group showed very significant difference (t=9.146, df=76, p=.000). CONCLUSION: The PDQ-4+ shows a reasonable degree of reliability and validity and could be a valuable tool in screening for overall personality disturbances.

The Prevalence of the Cluster-B Personality Disorders in University Students / 中国心理卫生杂志

Objective:To investigate the prevalence of Cluster-B personality disorders in university students. Methods: 1. Personality Diagnostic Questionnaire (PDQ+4) was administered to a sample which consisted of 3140 university students to screen personality disorder subjects. Cluster-B personality disorder subjects were finally diagnosed by conducting bland semi structured interview using Personality Disorder Interview-IV (PDI-IV) four to six weeks after the first administration. Results: The total prevalence of Cluster-B personality disorders among 3140 subjects of university students was 1.21% with 38 subjects met the diagnostic criteria of Cluster-B personality disorders. One female subject met the criteria of Antisocial Personality Disorder (APD), 21 Borderline Personality Disorder (BPD), 20 Narcissistic Personality Disorder (NPD), and 8 Histrionic Personality Disorder (HPD). The prevalence of BPD, NPD and HPD were 0.67%, 0.64% and 0.25% respectively. Ten subjects met the criteria of more than one personality disorder; the comorbidity rate was 26.3%. Conclusion: The prevalence of Cluster-B personality disorder in university students is lower than in general population reported by foreign researchers.