Evaluation of DSM-IV personality disorder criteria as assessed by the structured clinical interview for DSM-IV personality disorders

The primary objective of this research was to investigate the psychometric and diagnostic efficiency properties of DSM-IV personality disorder (PD) criteria as assessed by the Structured Clinical Interview for DSM-IV Personality Disorders (SCID-II). Logistic regression analyses were also employed to identify discriminating and nondiscriminating diagnostic criteria within specific PD categories. Results based on a community sample of 149 psychotropic medication-free persons, 58% of whom had at least one PD as determined from the SCID-II, suggest problems with the assessment and/or conceptualization of some PD categories, most notably obsessive-compulsive PD. For many PD concepts, diagnostic criteria were identified that either detracted from the overall internal consistency and diagnostic efficiency of their associated PD criteria set or failed to uniquely discriminate individuals with specific PDs from those without. Most of these findings cannot be clearly attributed to limitations associated with the method used to assess PD criteria.     

Diagnosis of comorbid psychiatric disorders in substance users assessed with the Psychiatric Research Interview for Substance and Mental Disorders for DSM-IV

OBJECTIVE: The authors used the Psychiatric Research Interview for Substance and Mental Disorders for DSM-IV (PRISM-IV) to test the reliability of DSM-IV-defined disorders, including primary and substance-induced disorders, in substance-abusing subjects. METHOD: Substance-abusing patients (N=285) from substance abuse/dual-diagnosis treatment settings and mental health treatment settings participated in test and blind retest interviews with the PRISM-IV, which includes specific guidelines for assessment of substance abusers. RESULTS: Kappas for primary and substance-induced major depressive disorder ranged from 0.66 to 0.75. Reliability for psychotic disorders, eating disorders, antisocial personality disorder, and borderline personality disorder was in the same range. Reliability for most anxiety disorders was lower. Reliability was good to excellent (kappas >/=0.65) for most substance dependence disorders. Continuous measures (severity, age at onset) had intraclass correlation coefficients >0.70 with few exceptions. Reliability was better for primary than for substance-induced disorders, although not greatly so. CONCLUSION: Most DSM-IV psychiatric disorders can be assessed in substance-abusing subjects with acceptable to excellent reliability by using specifically designed procedures. Good reliability improves the likelihood of significant study results.     

The diagnostic interview for personality disorders: Interrater and test-retest reliability

The Diagnostic Interview for Personality Disorders (DIPD) is a semistructured interview of 252 questions that encompasses all 11 Axis II disorders described in the DSM-III. Its interrater reliability was assessed using a sample of 43 patients and its test-retest reliability was assessed using a separate sample of 54 patients. Adequate kappas were obtained in both situations for all disorders except schizoid personality disorder, which was never diagnosed. Interrater coefficients ranged from .52 to 1.0, with nine in the excellent range (κ > .75). Test-retest coefficients ranged from .46 to .85, with four in the excellent range. These results compara very favorably to those achieved using the other two Axis II interviews that have appeared in the literature, the Structured Interview for the DSM-III Personality Disorders (SIDP) and the Personality Disorder Examination (PDE).     

Frequency of comorbid personality disorders in bipolar and unipolar affective disorders

One expression of the complex relationship between personality and affective disorder is the comorbidity of personality disorders (PDs) with affective disorders. In a sample of 117 patients with unipolar and 60 with bipolar affective disorders, we assessed DSM-III-R PDs with the Structured Clinical Interview for DSM-IV Personality Disorders (SCID-II) and compared them with personality factors as obtained by the five-factor model (FFM-NEO Five-Factor Inventory). Fifty-one percent of the unipolar and 38% of the bipolar disorders fulfilled criteria for a comorbid PD. The three most frequent PDs were obsessive-compulsive PD, borderline PD, and narcissistic (bipolar) or avoidant (unipolar) PD. Cluster C PDs and especially avoidant PD occurred significantly more frequently in unipolar than in bipolar patients, while narcissistic PD occurred significantly more often in bipolar than in unipolar patients. The FFM results supported the validity of our PD diagnoses. In a logistic regression analysis, higher depression score at the time of the SCID-II interview and shorter duration of the illness were weakly related to a higher frequency of PDs. Our results indicate that PDs are frequent in affective disorders and that there are subtle differences between unipolar and bipolar patients concerning such comorbid disorders.     

The interrater reliability of a Dutch version of the Structured Clinical Interview for DSM-III-R Personality Disorders.

This study presents data on the interrater reliability of a Dutch version of the Structured Clinical Interview for DSM-III-R Personality Disorders (SCID-II). Seventy outpatients were interviewed before the start of their treatment by one rater, while a second rater observed. Both raters were instructed to make independent ratings and the second rater was not allowed to participate in the discussion. On criterion level, interrater reliabilities appear to be very good, with a few exceptions (most reliabilities are higher than 0.75). However, all 5 observation criteria had poor interrater reliabilities. Agreement on personality disorder, on the whole, was excellent (overall kappa = 0.80). The possible reasons why relatively lower reliabilities are found with some criteria are discussed. Finally, problems encountered during the interviews are addressed and possible adjustments of the SCID-II are suggested.     

Screening for personality disorder: a comparison of personality disorder assessment by patient and informants

The Structured Clinical Interview for DSM-IV Personality Disorders (SCID-II Version 2.0) is becoming the most favoured instrument to measure personality disorder but takes up to an hour to complete. The Standardized Assessment of Personality (SAP), an informant-based measure, takes 10 to 15 minutes to complete. Both instruments have been validated independently. This study aimed to determine whether the SAP is a suitable screening instrument for personality disorder as measured by the SCID-II. Fifty-seven psychiatric patients were assessed for personality disorder using both the SAP and the SCID-II. The SAP assessments were conducted blind to the results of the SCID-II assessments. Agreement between the two instruments in this population was low (kappa = 0.3). The level of agreement differed between personality disorder categories, ranging from kappa = 0.4 (antisocial) to 0.1 (narcissistic). In this population of patients, the SAP proved to be a poor screen for the SCID-II. The study highlights the discrepancy between informant and self-report assessments for personality disorder.     

The impact of ADHD and autism spectrum disorders on temperament, character, and personality development

OBJECTIVE: The authors describe personality development and disorders in relation to symptoms of attention deficit hyperactivity disorder (ADHD) and autism spectrum disorders. METHOD: Consecutive adults referred for neuropsychiatric investigation (N=240) were assessed for current and lifetime ADHD and autism spectrum disorders and completed the Temperament and Character Inventory. In a subgroup of subjects (N=174), presence of axis II personality disorders was also assessed with the Structured Clinical Interview for DSM-IV Personality Disorders (SCID-II). RESULTS: Patients with ADHD reported high novelty seeking and high harm avoidance. Patients with autism spectrum disorders reported low novelty seeking, low reward dependence, and high harm avoidance. Character scores (self-directedness and cooperativeness) were extremely low among subjects with neuropsychiatric disorders, indicating a high overall prevalence of personality disorders, which was confirmed with the SCID-II. Cluster B personality disorders were more common in subjects with ADHD, while cluster A and C disorders were more common in those with autism spectrum disorders. The overlap between DSM-IV personality disorder categories was high, and they seem less clinically useful in this context. CONCLUSIONS: ADHD and autism spectrum disorders are associated with specific temperament configurations and an increased risk of personality disorders and deficits in character maturation.     

Test-Retest Reliability of the Preschool Age Psychiatric Assessment (PAPA)

OBJECTIVE: To examine the test-retest reliability of a new interviewer-based psychiatric diagnostic measure (the Preschool Age Psychiatric Assessment) for use with parents of preschoolers aged 2 to 5 years. METHOD: A total of 1,073 parents of children attending a large pediatric clinic completed the Child Behavior Checklist 1 1/2-5. For 18 months, 193 parents of high scorers and 114 parents of low scorers were interviewed on two occasions an average of 11 days apart. RESULTS: Estimates of diagnostic reliability were very similar to those obtained from interviews with parents of older children and adults, with kappas ranging from 0.36 to 0.79. Test-retest intraclass correlations for DSM-IV syndrome scale scores ranged from 0.56 to 0.89. There were no significant differences in reliability by age, sex, or race (African American versus non-African American). CONCLUSIONS: The Preschool Age Psychiatric Assessment provides a reasonably reliable standardized measure of DSM-IV psychiatric symptoms and disorders in preschoolers for use in both research and clinical service evaluations of preschoolers as young as 2 years old.     

Study IV: concurrent validity of the DSM-IV revised Children's Interview for Psychiatric Syndromes (ChIPS)

OBJECTIVE: To determine validity of the Diagnostic and Statistical Manual of Mental Disorders (4th ed.) (DSM-IV) revised Children's Interview for Psychiatric Syndromes (ChIPS) in inpatient children and adolescents. METHOD: Participants were 47 psychiatric inpatients 6-12 (n = 23) and 12 to 18 years of age (n = 24). ChIPS was administered to all participants. The Diagnostic Interview for Children and Adolescents-Revised-Child Version (DICA-R-C) was administered to 40 participants. Discharge diagnoses were recorded for all participants. Kappas, low base rate kappas, and percentage agreement were used to assess diagnostic agreement between sources for 18 disorders. RESULTS: ChIPS/DICA-R-C kappas could not be calculated for two disorders because of 100% agreement on their absence. Fourteen of 16 kappas were significant (p < 0.05). The remaining 2 of 16 disorders had 98% agreement (kappax = 0.494, p < 0.157). When ChIPS results were compared with discharge diagnoses, sensitivity for each disorder averaged 70%, whereas specificity averaged 84%. When disagreements occurred between all three sources, ChIPS was somewhat more likely than DICA-R-C to agree with discharge diagnoses (27% versus 22%). Analysis were repeated for children and adolescents, then for boys and girls. Boys and children had fewer significant ChIPS and DICA-R-C kappa coefficients compared with girls and adolescents; this appeared to be related to the fewer number of diagnoses they endorsed. ChIPS/clinician agreement was similar for boys and girls as well as for children and adolescents. Administration time was less for ChIPS than for DICA-R-C (p < 0.08). CONCLUSION: Psychometric properties of the DSM-IV revised ChIPS compare favorably with that of other structured interviews. ChIPS appears to work well for adolescents as well as children.     

Predictors of comorbid personality disorders in patients with panic disorder with agoraphobia

The aim of this study was to ascertain predictors of comorbid personality disorders in patients with panic disorder with agoraphobia (PDAG). Sixty consecutive outpatients with PDAG were administered the Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II) for the purpose of diagnosing personality disorders. Logistic regressions were used to identify predictors of any comorbid personality disorder, any DSM-IV cluster A, cluster B, and cluster C personality disorder. Independent variables in these regressions were gender, age, duration of panic disorder (PD), severity of PDAG, and scores on self-report instruments that assess the patient's perception of their parents, childhood separation anxiety, and traumatic experiences. High levels of parental protection on the Parental Bonding Instrument (PBI), indicating a perception of the parents as overprotective and controlling, emerged as the only statistically significant predictor of any comorbid personality disorder. This finding was attributed to the association between parental overprotection and cluster B personality disorders, particularly borderline personality disorder. The duration of PD was a significant predictor of any cluster B and any cluster C personality disorder, suggesting that some of the cluster B and cluster C personality disorders may be a consequence of the long-lasting PDAG. Any cluster B personality disorder was also associated with younger age. In conclusion, despite a generally nonspecific nature of the relationship between parental overprotection in childhood and adult psychopathology, the findings of this study suggest some specificity for the association between parental overprotection in childhood and personality disturbance in PDAG patients, particularly cluster B personality disorders.     

海洛因依赖与人格障碍共病调查

目的：调查海洛因依赖者的人格障碍共病状况。方法：采用美国精神障碍诊断与统计手册第4版（DSM-Ⅳ）系统轴Ⅱ人格障碍访谈问卷（SCID-II）（第2版）对90例海洛因依赖者进行评定及相关统计分析。结果：79例（87.8%）符合至少一种人格障碍,常见的为偏执型、强迫型、反社会型、未加标明组（被动攻击型及抑郁型）、边缘型、回避型、自恋型等,人均患2.5种人格障碍。以戏剧化-情绪组人格障碍最常见。结论：在海洛因依赖者中人格障碍共病现象相当普遍。     

DSM-IV obsessive-compulsive personality disorder: prevalence in patients with anxiety disorders and in healthy comparison subjects

The relationship between obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD) has not yet been fully clarified. The aim of the present study was to analyze DSM-IV OCPD prevalence rates in OCD and panic disorder (PD) patients to test for the specificity of the OCPD-OCD link, and to compare them to OCPD prevalence in a control group of subjects without any psychiatric disorder. A total of 109 patients with a principal diagnosis of DSM-IV (SCID-I) OCD and 82 with PD were interviewed using the Structured Clinical Interview for DSM-IV Axis II Disorders (SCID-II) in order to assess the prevalence of OCPD. All patients with a coexisting axis I diagnosis were excluded from the study to eliminate confounding factors when evaluating the association between prevalence rates of OCPD and anxiety disorder diagnoses. An exclusion criteria was also a Hamilton Depression Rating Scale (HAM-D) score >/=16. A sample of comparison subjects (age 18 to 65 years) without any psychiatric disorder was recruited from people registered with two general practitioners (GPs), whether or not they consulted the doctor, in order to evaluate OCPD prevalence rate in the community. A significant difference was found between the prevalence of OCPD in OCD (22.9%) and in PD (17.1%) on one hand, and that in the comparison sample (3.0%) on the other. No differences were found between the two psychiatric groups, even when splitting the samples according to gender. Our study failed to support the hypothesis of a specific relationship between OCPD and OCD; we confirmed the higher prevalence rate of this personality disorder in OCD subjects with regard to the general population, but we also confirmed the higher rate of OCPD in another anxiety disorder which is phenomenologically well characterized and different from OCD, such as PD.     

Melancholia and axis II comorbidity

This study assessed whether the rates of comorbid personality disorders differed between DSM-IV melancholic and nonmelancholic major depressive disorder. We evaluated 260 consecutive depressed outpatients (140 women [53.8%]; mean age, 39.01 +/- 10.4 years) with DSM-III-R major depressive disorder (MDD). MDD was diagnosed with the use of the Structured Clinical Interview for DSM-III-R-Patient Edition (SCID-P); enrolled patients were required to have a score >/= 16 on the 17-item Hamilton Rating Scale for Depression (HAM-D-17). The presence of the melancholic subtype of major depression was determined with the use of a DSM-IV checklist, while the presence of personality disorders was assessed using the Structured Clinical Interview for DSM-III-R-Personality Disorders (SCID-II). Of the 102 (39.2%) patients who met criteria for melancholic depression and the 158 (60.7%) who did not, there were no significant differences in age, gender, or rates of personality disorder diagnoses. We observed no significant difference in rates of individual personality disorder clusters between melancholic and nonmelancholic depressed patients. Our findings of comparable rates of comorbid personality disorders between melancholic and nonmelancholic depression are consistent with the decision made by the DSM-IV task force to drop the DSM-III-R melancholic feature criterion of "no significant personality disturbance before first major depressive episode" as they challenge the usefulness of trying to establish such absence of premorbid personality features in acutely depressed patients.     

Possible link between childhood separation anxiety and adulthood personality disorder in patients with anxiety disorders in Japan

OBJECTIVE: The aim of this study was to examine whether childhood separation anxiety symptoms associate with adulthood anxiety disorders or personality disorders. METHOD: Separation Anxiety Symptom Inventory (SASI), Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II), and Global Assessment of Functioning (GAF) were administered to 134 outpatients with anxiety disorders and SASI was administered to 176 healthy volunteers (controls) recruited in Japan from April 1999 through November 2003. RESULTS: SASI scores were not correlated with age or sex in controls. In contrast, SASI scores were higher in patients with anxiety disorders than in controls, especially in women. SASI showed good test-retest reliability (Pearson correlation coefficient = 0.8). One hundred thirteen patients (84.3%) had no comorbid anxiety disorder while 21 (15.7%) had any, and those with comorbid anxiety disorder tended to show higher SASI scores (p = .053). In total, 60 (44.8%) of 134 patients had at least 1 personality disorder, and the most frequent disorders were from cluster C (36.6%). The subgroup with comorbid personality disorders showed earlier onset (p < .01), higher SASI scores (p < .01), and poorer recovery of global functioning (p < .05) than the noncomorbid subgroup. Stepwise multiple regression analysis revealed that SASI scores were higher in female (p < .05) and younger (p < .01) patients and most strongly correlated with number of comorbid personality disorders in adulthood (p < .01). CONCLUSION: These results suggest that there is a continuum of anxiety disorders from childhood to adulthood, the severity of separation anxiety appears to increase the risk of severe anxious-fearful personality disorders in adulthood, and those with severe separation anxiety, particularly females, may progress to suffer from comorbid adult anxiety disorders.     

Concordance of DSM-IV Axis I and II diagnoses by personal and informant's interview

The validity and reliability of using psychological autopsies to diagnose a psychiatric disorder is a critical issue. Therefore, interrater and test-retest reliability of the Structured Clinical Interview for DSM-IV Axis I and Personality Disorders and the usefulness of these instruments for the psychological autopsy method were investigated. Diagnoses by informant's interview were compared with diagnoses generated by a personal interview of 35 persons. Interrater reliability and test-retest reliability were assessed in 33 and 29 persons, respectively. Chi-square analysis, kappa and intraclass correlation coefficients, and Kendall's tau were used to determine agreement of diagnoses. Kappa coefficients were above 0.84 for substance-related disorders, mood disorders, and anxiety and adjustment disorders, and above 0.65 for Axis II disorders for interrater and test-retest reliability. Agreement by personal and relative's interview generated kappa coefficients above 0.79 for most Axis I and above 0.65 for most personality disorder diagnoses; Kendall's tau for dimensional individual personality disorder scores ranged from 0.22 to 0.72. Despite of a small number of psychiatric disorders in the selected population, the present results provide support for the validity of most diagnoses obtained through the best-estimate method using the Structured Clinical Interview for DSM-IV Axis I and Personality Disorders. This instrument can be recommended as a tool for the psychological autopsy procedure in post-mortem research.     

Attainment and maintenance of reliability of axis I and II disorders over the course of a longitudinal study

The baseline interrater reliability, test-retest reliability, follow-up interrater reliability, and follow-up longitudinal reliability of axis I and axis II diagnoses were assessed using the Structured Clinical Interview for DSM-III-R Axis I Disorders (SCID-I) and the Diagnostic Interview for DSM-III-R Personality Disorders (DIPD-R). Excellent kappas (>.75) were found in each of these reliability substudies for the majority of axis II disorders diagnosed five times or more. Dimensional reliability figures for axis II diagnoses were generally somewhat higher than those for their categorical counterparts; most intraclass correlation coefficients (ICCs) were in the excellent range. Excellent kappas were also found in each of these four reliability substudies for over half of the axis I disorders diagnosed five times or more. Taken together, the results of this study suggest that the reliability of axis II disorders is both good to excellent and practically equivalent to that found for most axis I disorders. The results of this study also suggest that high levels of reliability, once achieved, can be maintained over time for both axis I and II disorders.     

Study V: Children's Interview for Psychiatric Syndromes (ChIPS): psychometrics in two community samples

OBJECTIVE: To determine sensitivity and specificity of the Diagnostic and Statistical Manual of Mental Disorders (4th ed.) (DSM-IV) revised Children's Interview for Psychiatric Syndromes (ChIPS) in nonclinical samples. METHOD: Participants were 40 children 6 to 18 years of age from a community sample (n = 22) or a bereaved sample 1 to 2 years following the death of a parent (n = 18). ChIPS and the Diagnostic Interview for Children and Adolescents (DICA-R-C) were administered in a Latin Square design. A consensus conference (CC) of child psychopathology experts determined presence or absence of syndromes or symptoms after reviewing assessment materials not including ChIPS. RESULTS: Sensitivity is commensurate with epidemiologic base rates (17.5% of participants endorsed at least one syndrome). Low base rate kappas and percentage agreement were calculated to determine agreement on symptom or syndrome endorsement for 20 disorders. For syndrome analyses, over half the kappas could not be calculated due to 100% agreement on absence. For symptom analyses, 3 of 20 kappas could not be calculated (100% agreement on absence). Eleven of ChIPS/DICA-R-C symptom kappas were significant (p < 0.04), 2 of 17 had 95% agreement (kappas, p < 0.08), and 4 of 17 had 97.5% agreement (kappas, p < 0.16). Thirteen of 17 ChIPS/CC symptom kappas were significant (p < 0.04), and 4 of 17 had 97.5% agreement (kappas, p < 0.16). CONCLUSION: ChIPS' psychometrics in nonclinical samples compares favorably with that of other structured interviews.     

Reliability and cultural applicability of the Greek version of the International Personality Disorders Examination.

Background  

The International Personality Disorders Examination (IPDE) constitutes the proposal of the WHO for the reliable diagnosis of personality disorders (PD). The IPDE assesses pathological personality and is compatible both with DSM-IV and ICD-10 diagnosis. However it is important to test the reliability and cultural applicability of different IPDE translations.     

Bipolar obsessive-compulsive disorder and personality disorders

OBJECTIVES: Relatively few systematic data exist on the clinical impact of bipolar comorbidity in obsessive-compulsive disorder (OCD) and no studies have investigated the influence of such a comorbidity on the prevalence and pattern of Axis II comorbidity. The aim of the present study was to explore the comorbidity of personality disorders in a group of patients with OCD and comorbid bipolar disorder (BD). METHODS: The sample consisted of 204 subjects with a principal diagnosis of OCD (DSM-IV) and a Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) score>or=16 recruited from all patients consecutively referred to the Anxiety and Mood Disorders Unit, Department of Neuroscience, University of Turin over a period of 5 years (January 1998-December 2002). Diagnostic evaluation and Axis I comorbidities were collected by means of the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I). Personality status was assessed by using the Structured Clinical Interview for DSM-IV Axis II Disorders (SCID-II). Socio-demographic and clinical features (including Axis II comorbidities) were compared between OCD patients with and without a lifetime comorbidity of BD. RESULTS: A total of 21 patients with OCD (10.3%) met DSM-IV criteria for a lifetime BD diagnosis: 4 (2.0%) with BD type I and 17 (8.3%) with BD type II. Those without a BD diagnosis showed significantly higher rates of male gender, sexual and hoarding obsessions, repeating compulsions and lifetime comorbid substance use disorders, when compared with patients with BD/OCD. With regard to personality disorders, those with BD/OCD showed higher prevalence rates of Cluster A (42.9% versus 21.3%; p=0.027) and Cluster B (57.1% versus 29.0%; p=0.009) personality disorders. Narcissistic and antisocial personality disorders were more frequent in BD/OCD. CONCLUSIONS: Our results point towards clinically relevant effects of comorbid BD on the personality profiles of OCD patients, with higher rates of narcissistic and antisocial personality disorders in BD/OCD patients.     

Internal consistency, intercriterion overlap and diagnostic efficiency of criteria sets for DSM-IV schizotypal, borderline, avoidant and obsessive-compulsive personality disorders.

OBJECTIVE: To evaluate performance characteristics of DSM-IV Personality Disorders (PDs) criteria. METHOD: Six hundred and sixty-eight adults recruited for the Collaborative Longitudinal Personality Disorders Study (CLPS) were assessed with diagnostic interviews. RESULTS: Within-category inter-relatedness was evaluated by Cronbach's alpha and median intercriterion correlations (MIC). Cronbach's alpha ranged from 0.47 to 0.87 (median=0.71); seven of the 10 PDs had alphas greater than 0.70. Between-category criterion overlap was evaluated by "inter-category" intercriterion correlations between all PD pairs (ICMIC). ICMIC values (median=0.08) were lower than MIC values (median=0.23). Diagnostic efficiency statistics (sensitivity, specificity, positive predictive power and negative predictive power were calculated for schizotypal, borderline, avoidant and obsessive-compulsive PDs. CONCLUSION: DSM-IV PD criteria sets have some convergent validity and discriminant validity: criteria for individual PDs correlate better with each other than with criteria for other PDs. Diagnostic efficiency statistics provide guidance regarding usefulness of criteria for inclusion or exclusion.