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

Episodic obsessive-compulsive disorder and bipolar spectrum disorder: new evidence from a large Italian OCD sample

OBJECTIVES

Obsessive-Compulsive Disorder (OCD) has been considered to be a chronic illness; however, some authors described a subtype of OCD characterised by symptom-free periods of time: Episodic-OCD (E-OCD). Only few studies focussed on this subtype of the disorder. The objectives of this research were to study the association between the episodic course of the disorder and lifetime psychiatric comorbidities and to investigate socio-demographic and other clinical features correlated to the episodic course.

METHODS

The sample is composed of adult OCD patients. The course was defined episodic when at least one circumscribed symptom-free interval of at least 6 months was present. The sample was divided into two subgroups: Episodic-OCD and Chronic-OCD. Differences between groups were analysed with Student's t-test, χ2 tests, Fisher test and multivariate logistic regression.

RESULTS

Data regarding 585 individuals were collected. 14.2% (N = 83) of our sample had an episodic course. Bipolar I comorbid disorder, abrupt onset, lower severity of illness and lower rates of repeating compulsions were associated with the likelihood of having an E-OCD.

CONCLUSIONS

Our findings confirm that a significant proportion of OCD patients have an episodic course and that E-OCD could represent a specific endophenotype.

Validity of a Revised Obsessive-Compulsive Personality Disorder (OCPD) Trait Profile and Its Relationship with Social Interaction Anxiety and Coping

There is evidence suggesting that the conceptualization and operationalization of Obsessive-Compulsive Personality Disorder (OCPD) is not satisfactory (Watters et al., 2019). In this study, we used an online sample (N = 1008) to investigate the construct validity of the PID-5 OCPD trait measure. Regression analyses supported our hypothesis that rigid perfectionism captured the core phenomenology of OCPD whereas restricted affectivity and intimacy avoidance were not conceptually related to the OCPD construct. Based on the biosocial theory for overcontrol (Lynch, 2018), we introduced anxiousness and workaholism to the PID-5 OCPD trait profile. In establishing the validity of the revised OCPD trait profile, we investigated, for the first time, the role of social interaction anxiety and maladaptive coping in OCPD. Our revised OCPD profile showed good validity and was characterized by marked social interaction anxiety and dysfunctional coping mechanisms. The findings may lead to a new conceptualization of OCPD which prioritizes deficits in social interaction and coping. We identify areas that need to be prioritized in the evaluation of OCPD by mental health professionals and offer avenues for new clinical research in the field.

Correlations between single nucleotide polymorphisms in obsessive-compulsive disorder with the clinical features or response to therapy

Obsessive-compulsive disorder (OCD) is a debilitating neuropsychiatric disorder, in which the patient endures intrusive thoughts or is compelled to perform repetitive or ritualized actions. Many cases of OCD are considered to be familial or heritable in nature. It has been shown that a variety of internal and external risk factors are involved in the pathogenesis of OCD. Among the internal factors, genetic modifications play a critical role in the pathophysiological process. Despite many investigations performed to determine the candidate genes, the precise genetic factors involved in the disease remain largely undetermined. The present review summarizes the single nucleotide polymorphisms that have been proposed to be associated with OCD symptoms, early onset disease, neuroimaging results, and response to therapy. This information could help us to draw connections between genetics and OCD symptoms, better characterize OCD in individual patients, understand OCD prognosis, and design more targeted personalized treatment approaches.

Efficacy and tolerability of pharmacotherapy for obsessive-compulsive personality disorder: a systematic review of randomized controlled trials

INTRODUCTION

Although obsessive-compulsive personality disorder (OCPD) is one of the most prevalent personality disorders, it is one of the least studied. There is debate as to whether pharmacotherapy is efficacious for OCPD. We aimed to systematically evaluate the efficacy and tolerability of pharmacotherapy for OCPD.

AREAS COVERED

This systematic review found two randomized controlled trials investigating pharmacotherapy of OCPD. In a study of major depression (n = 308) with comorbid OCPD (n = 71), citalopram was more effective for OCPD than sertraline with fewer drop-outs from treatment. In a small study of OCPD (n = 24), fluvoxamine was more effective than placebo, and there was a low drop-out rate. Risk of bias and quality assessment of these studies was not possible, and findings have very low levels of certainty.

EXPERT OPINION

Two studies provide preliminary evidence in support of citalopram and fluvoxamine for OCPD. Further randomized controlled trials are required before firm conclusions can be drawn regarding efficacy of pharmacotherapy for OCPD.

Obsessive-compulsive symptoms in young women affected with anorexia nervosa, and their relationship with personality, psychopathology, and attachment style

PURPOSE

Obsessive-compulsive symptoms (OC) are associated with greater morbidity and worse prognosis in anorexia nervosa (AN). We assessed the presence of non-eating OC in participants with AN and related them with their psychopathology, personality, and attachment style features.

METHODS

Young women with AN (N = 41, 30 restrictor and 11 binge-purging type) were assessed on the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS). These participants with AN and 82 healthy controls (HC) completed the Temperament and Character Inventory (TCI), Eating Disorder Inventory-2 (EDI-2), Symptom Checklist-90 (SCL-90), Toronto Alexithymia Scale (TAS-20), and Attachment Style Questionnaire (ASQ). The association between Y-BOCS scores and indexes of psychopathology, personality, and attachment were examined.

RESULTS

AN had significantly higher scores than HC on the EDI-2, SCL-90, TAS-20, ASQ-Need for Approval, and TCI-Harm Avoidance and Self-directedness. The Y-BOCS scores were significantly correlated with ASQ-Need for Approval, TAS-20-Difficulty in Describing Feelings, SCL-90-Phobic Anxiety, and Anxiety, EDI-2-Drive to Thinness, and Asceticism. Need for Approval displayed the strongest correlation with OC symptoms. Difficulty in describing feelings displayed the strongest correlation with compulsive OC symptoms.

CONCLUSIONS

OC traits in AN were primarily associated with measures of insecure attachment rather than to their eating disorder or general psychopathology. Therapeutic approaches to correcting insecure attachment may be considered as a possible approach to treating AN patients with OC. The study supports a new psychopathological perspective for understanding the meaning of OC symptoms in AN.

LEVEL OF EVIDENCE

III: Evidence obtained from cohort or case-control analytic studies.

Obsessive-Compulsive Personality Disorder Co-occurring in Individuals with Obsessive-Compulsive Disorder: A Systematic Review and Meta-analysis

LEARNING OBJECTIVES

After participating in this activity, learners should be better able to:• Assess the rates of co-occurring obsessive-compulsive personality disorder (OCPD) in patients with obsessive-compulsive disorder (OCD)• Identify characteristics related to OCD with co-occurring OCPD.

ABSTRACT

The current literature discloses discrepant findings regarding the rates of co-occurring obsessive-compulsive personality disorder (OCPD) in patients with obsessive-compulsive disorder (OCD). In addition, it is not clear which characteristics are related specifically to OCD with co-occurring OCPD. We conducted the first systematic review and meta-analysis of the studies of the prevalence of OCPD in patients with OCD. We also investigated potential moderators of the prevalence, including OCD severity, age of onset of OCD, sex, current age, methodological quality, and publication date of the studies. Electronic databases and gray literature were searched by two independent reviewers. A PRISMA systematic review with a random-effect meta-analysis was conducted. Thirty-four studies were included. A significant mean effect size of 0.25 without publication bias indicated that OCPD was present in 25% of patients with OCD, suggesting that the two conditions are distinct clinical entities. This prevalence was higher than the rates found in the literature for any other personality disorders among OCD patients. OCPD that occurs in the context of OCD was more likely to be present in males and to be characterized by a later age of onset of OCD, older age at assessment, and less severe OCD symptoms. Clinicians should consider these findings when assessing and planning treatment of OCD with co-occurring OCPD.

Psychic euosmia among obsessive-compulsive personality disorder patients: A case control study

BACKGROUND

Psychic euosmia (PE) has been described as a supposed psychological predisposition for which pleasant smells elicit an immediate sense of pleasure, order and calmness in obsessive-compulsive personality disorder (OCPD). In this study we tried to verify the interpretation that PE is the counterpart of disgust that has been associated to contamination and moral purity. Disgust and morality are significantly associated in people with obsessive-compulsive personality traits. We expected that OCPD patients would experience higher levels of PE.

AIM

To investigate the PE frequency in OCPD patients and healthy controls (HC) and to evaluate the relationship between PE and disgust.

METHODS

A single-center, case-control study was conducted in an outpatient service for obsessive-compulsive and related disorders. The sample consisted of 129 subjects: 45 OCPD patients and 84 HC. In both groups we submitted the Disgust Scale Revised (DS-R) and the self-report Structured Clinical Interview for DSM-5 Screening Personality Questionnaire to which we added an additional yes or no question to investigate the presence of PE. In order to verify differences between groups, t-test was employed for continuous variables and ² test for categorical variable; odds ratio was employed to analyze group differences in the PE survey. Correlation was explored with Pearson r correlations.

RESULTS

No differences were observed between groups in gender composition or education. A slight significant difference was found in mean age (t = 1.988; P = 0.049). The present study revealed significantly higher proportions of PE among OCPD patients when compared to HC (OR: 5.3, 2.28-12.46). Patients with OCPD were more likely to report PE (n = 36; 80%) whereas a much lower proportion endorsed PE in the HC group (n = 36; 42.9%). Interestingly, no differences were observed between groups in mean score for the Disgust Scale. There was also no difference between the two groups in any of the Disgust Scale Revised subscales. Moreover, no significant correlations were observed in the OCPD group between PE and Disgust Scale Revised subscales.

CONCLUSION

Results suggested that PE might be part of the clinical spectrum of OCPD, and it does not reflect the counterpart of disgust. This could also indicate that this phenomenon is a manifestation of orderliness or incompleteness. Further studies will need to be undertaken to better understand PE and its significance in OCPD.

Mental Fatigue, But Not other Fatigue Characteristics, as a Candidate Feature of Obsessive Compulsive Personality Disorder in Patients with Anxiety and Mood Disorders-An Exploratory Study

BACKGROUND

Obsessive compulsive personality disorder (OCPD) is commonly associated with anxiety and mood disorders (AMDs), in which fatigue and executive dysfunction represent key symptoms. Executive dysfunction has also been demonstrated in subjects with OCPD, and is additionally found to be a cardinal feature of fatigue. This study aimed to investigate the associations between fatigue, executive dysfunction, and OCPD in patients with AMDs.

METHODS

In this cross-sectional study, 85 AMD patients (78% females, mean age 39 ± 11 years) were evaluated for OCPD traits by using the observer-rated Compulsive Personality Assessment Scale. The Multidimensional Fatigue Inventory-20 was used to measure different aspects of fatigue, and the Trail Making Test was employed to assess executive functioning. The Hamilton rating scales were used to evaluate anxiety and depression symptoms.

RESULTS

Controlling for potential confounders, there was a significant link between OCPD and mental fatigue (OR, 1.27; 95% CI, 1.02 to 1.58; p = 0.033). No associations were found between the presence of OCPD and other relevant fatigue characteristics, including general fatigue, physical fatigue, reduced activity, and reduced motivation, as well as executive functions.

CONCLUSIONS

To the best of our knowledge, this study is the first to report associations between OCPD and mental fatigue in patients with AMDs, suggesting mental fatigue as a clinically important symptom when considering particular personality pathologies.

Obsessive-compulsive personality disorder traits and personality dimensions in parents of children with obsessive-compulsive disorder

Purpose

To compare patterns of temperament and character and the prevalence of Obsessive-Compulsive Personality Disorder (OCPD) and OCPD traits in parents of children with OCD and parents of healthy controls.

Methods

TCI and SCID-II were administered to 63 parents of 32 children with OCD and 63 parents of age- and sex-matched controls with no psychiatric diagnosis. Interviewers were not blind to proband status. Personality dimension scores and frequencies of OCPD criteria in both groups were compared after excluding parents with a diagnosis of OCD. Relationships between TCI dimensions and OCPD symptoms in parents and the clinical characteristics of OCD children were also studied.

Results

Parents of OCD children presented significantly higher scores in harm avoidance and lower scores in self-directedness, cooperativeness and reward dependence than parents of healthy children. A higher incidence of OCPD was found in parents of probands (p < 0.02). Hoarding, perfectionism and preoccupation with details were significantly more frequent in parents of OCD children. Counting, ordering and cleaning compulsions in OCD children predicted elevated odds of perfectionism and rigidity in their parents.

Conclusions

The existence of the dimensional personality profile associated with OCD in parents of children with OCD and the higher number of OCPD criteria in these parents in comparison to parents of healthy children highlight the importance of the role of personality factors in familial OCD.

The prevalence of personality disorders in the community: a global systematic review and meta-analysis

BACKGROUND

Personality disorders are now internationally recognised as a mental health priority. Nevertheless, there are no systematic reviews examining the global prevalence of personality disorders.

AIMS

To calculate the worldwide prevalence of personality disorders and examine whether rates vary between high-income countries and low- and middle-income countries (LMICs).

METHOD

We systematically searched PsycINFO, MEDLINE, EMBASE and PubMed from January 1980 to May 2018 to identify articles reporting personality disorder prevalence rates in community populations (PROSPERO registration number: CRD42017065094).

RESULTS

A total of 46 studies (from 21 different countries spanning 6 continents) satisfied inclusion criteria. The worldwide pooled prevalence of any personality disorder was 7.8% (95% CI 6.1-9.5). Rates were greater in high-income countries (9.6%, 95% CI 7.9-11.3%) compared with LMICs (4.3%, 95% CI 2.6-6.1%). In univariate meta-regressions, significant heterogeneity was partly attributable to study design (two-stage v. one-stage assessment), county income (high-income countries v. LMICs) and interview administration (clinician v. trained graduate). In multiple meta-regression analysis, study design remained a significant predictor of heterogeneity. Global rates of cluster A, B and C personality disorders were 3.8% (95% CI 3.2, 4.4%), 2.8% (1.6, 3.7%) and 5.0% (4.2, 5.9%).

CONCLUSIONS

Personality disorders are prevalent globally. Nevertheless, pooled prevalence rates should be interpreted with caution due to high levels of heterogeneity. More large-scale studies with standardised methodologies are now needed to increase our understanding of population needs and regional variations.

Overlap of obsessive-compulsive personality disorder and autism spectrum disorder traits among OCD outpatients: an exploratory study

Background: Whereas the phenomenology of obsessive-compulsive personality disorder (OCPD) shows similarities to that of obsessive compulsive and related disorders (OCRDs) as well as with autism spectrum disorder (ASD), the relationship between these disorders is poorly understood.Aims: Within a clinical sample, we aimed to investigate the distribution of OCD, OCPD and ASD symptoms and traits and their interrelationship, as well as to evaluate insight and treatment refractoriness.Methods: Consecutive adult OCD outpatients were assessed for OCPD traits (Compulsive Personality Assessment Scale (CPAS)), OCD symptoms (Yale-Brown Obsessive Compulsive Scale (Y-BOCS)), ASD traits (Autism Spectrum Quotient (AQ)), insight (Brown Assessment of Beliefs Scale (BABS)) and treatment resistance (clinical records). Those scoring highly on the AQ underwent a diagnostic interview for ASD.Results: Sixty-seven consenting individuals completed the CPAS, BABS and AQ, and 65 completed the Y-BOCS. Twenty-four patients (35.8%) were diagnosed with OCPD. Patients with OCPD were less likely to be employed (p=.04). They demonstrated elevated AQ scores (p=.004) and rates of ASD diagnosis (54.2%) (p <.001). OCPD traits (CPAS) showed a highly significant correlation with ASD traits (AQ) (p<.001), and no association with Y-BOCS, BABS or treatment resistance.Conclusions: In an OCD cohort limited by small size, OCPD associated strongly with unemployment and ASD, with implications for diagnosis, treatment and outcome.KEY POINTSClinicians should exercise a high level of vigilance for OCPD and ASD in patients presenting with obsessive compulsive symptoms.The presence of OCPD may indicate a likelihood of disabling ASD traits, including cognitive inflexibility, poor central coherence and poor social communication.These neuropsychological factors may require separate clinical intervention strategies.

Association of HTR1A gene polymorphisms with obsessive-compulsive disorder and its treatment response: the influence of sex and clinical characteristics

OBJECTIVE

There have been controversial results in the literature on the association between HTR1A polymorphisms (rs10042486, C-1019G, and Gly272Asp) and obsessive-compulsive disorder (OCD). Here, the plausibility for such genetic and pharmacogenetic association was investigated by assessing a sample of Iranian OCD patients.

METHOD

OCD patients had fulfilled the criteria for DSM-IV-TR with Y-BOCS scores higher than 9. A total of 207 controls and 205 patients' blood samples were genotyped by means of PCR-RFLP.

RESULTS

The results showed that there was no association between these three SNPs and the treatment response. The distribution of rs10042486 genotypes was significantly different in the patients compared to the controls. The association analyses of the C-1019G showed significant differences in the genotypic frequency of the patients with or without a positive family history of psychiatric disorders. Similar differences in female patients were also observed. We found that the age of onset also associates with the C-1019G polymorphism but only in the female patients. No association of Gly272Asp polymorphism and OCD was observed in this study.

CONCLUSION

We concluded that among the HTR1A polymorphisms, only the association of rs10042486 CT genotype and OCD was statistically significant. The association of C-1019G with OCD by considering the age of onset and family history was just significant in the female patients. No significant association between the studied HTR1A SNPs with treatment response was observed. Acquiring both positive and negative pharmacogenetic outcomes in each population helps to select the appropriate medication for a particular patient with fewer side effects.

A Psychometric Examination of the Pathological Obsessive Compulsive Personality Scale (POPS): Initial Study in an Undergraduate Sample

Obsessive-compulsive personality disorder (OCPD) has been subject to numerous definition and classification changes, which has contributed to difficulties in reliable measurement of the disorder. Consequently, OCPD measures have yielded poor validity and inconsistent prevalence estimates. Reliable and valid measures of OCPD are needed. The aim of the current study was to examine the factor structure and psychometric properties of the Pathological Obsessive Compulsive Personality Scale (POPS). Participants (N = 571 undergraduates) completed a series of self-report measures online, including the POPS. Confirmatory factor analysis was used to compare the fit of unidimensional, five factor, and bifactor models of the POPS. Convergent and divergent validity were assessed in relation to other personality dimensions. A bifactor model provided the best fit to the data, indicating that the total POPS scale and four subscales can be scored to obtain reliable indicators of OCPD. The POPS was most strongly associated with a disorder-specific measure of OCPD, however there were also positive associations with theoretically disparate constructs, thus further research is needed to clarify validity of the scale.

Abnormal illness behavior and Internet addiction severity: The role of disease conviction, irritability, and alexithymia

Background and aims While the association between health anxiety and maladaptive Internet use is a well-established finding, no studies have been performed to examine the possible effect of abnormal illness behavior (AIB). AIB is a maladaptive manner of experiencing, evaluating, or acting in response to health and illness that is disproportionate to evident pathology. The aim of this study was to investigate the association between AIB and Internet addiction (IA) severity in a sample of Italian University students. The possible effect of alexithymia, anxiety, and depression was also taken into account. Methods Participants were 115 men and 163 women (mean age = 23.62 ± 4.38 years); AIB was measured via the Illness Behavior Questionnaire (IBQ), and IA severity by the Internet Addiction Test (IAT). Results The most powerful IBQ factor predicting IA severity scores was disease conviction. Irritability was the only emotional IBQ factor associated with IA severity. Nevertheless, disease conviction and alexithymia remained the only significant predictors of IAT scores when hierarchical regression analysis was executed. Discussion and conclusions Our results support previous findings showing that those characterized by health anxiety are more prone to an excessive and maladaptive use of Internet. Moreover, this study showed that irritability was the only emotional aspect of AIB predicting IA severity. This finding is consistent with the cognitive model of hypochondria, which states that cognitive factors (dysfunctional beliefs and assumptions) play a major role in the explanation of this psychopathological condition.

The Impact of Obsessive Compulsive Personality Disorder on Cognitive Behaviour Therapy for Obsessive Compulsive Disorder

BACKGROUND

It is often suggested that, in general, co-morbid personality disorders are likely to interfere with CBT based treatment of Axis I disorders, given that personality disorders are regarded as dispositional and are therefore considered less amenable to change than axis I psychiatric disorders.

AIMS

The present study aimed to investigate the impact of co-occurring obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD) on cognitive-behavioural treatment for OCD.

METHOD

92 individuals with a diagnosis of OCD participated in this study. Data were drawn from measures taken at initial assessment and following cognitive-behavioural treatment at a specialist treatment centre for anxiety disorders.

RESULTS

At assessment, participants with OCD and OCPD had greater overall OCD symptom severity, as well as doubting, ordering and hoarding symptoms relative to those without OCPD; however, participants with co-morbid OCD and OCPD demonstrated greater treatment gains in terms of OCD severity, checking and ordering than those without OCPD. Individuals with OCD and OCPD had higher levels of checking, ordering and overall OCD severity at initial assessment; however, at post-treatment they had similar scores to those without OCPD.

CONCLUSION

The implications of these findings are discussed in the light of research on axis I and II co-morbidity and the impact of axis II disorders on treatment for axis I disorders.

Current understanding of the relationships between obsessive-compulsive disorder and personality disturbance

PURPOSE OF REVIEW

This article aims to examine the relationships between obsessive-compulsive disorder (OCD) and personality disturbance, with a particular focus on the diagnostic, aetiological and treatment implications of these relationships.

RECENT FINDINGS

Personality disorders are common in OCD. They interact in various ways and in accordance with a number of the proposed models. The relationship between OCD and obsessive-compulsive personality disorder is the most important, but it can be conceptualised in different ways and may vary from one person to another. The most clinically relevant implication of the presence of schizotypal personality disorder in OCD is poor prognosis and treatment outcome of OCD. The findings of the effects of personality disorders on treatment outcome of OCD have been inconsistent for most personality disorders, largely due to poor quality of research. Better understanding of the specific relationships between OCD and personality disturbance should lead to a more tailored treatment approach.

SUMMARY

Large prospective studies are needed to better understand how various relationships between OCD and specific personality disorders could be conceptualised more soundly. Such studies will also provide the foundation for more effective treatments of OCD patients with co-occurring personality disorders.

Comorbid Personality Disorders in Obsessive-Compulsive Disorder and Its Symptom Dimensions

The current paper was aimed at: (1) investigating the comorbidity between obsessive-compulsive disorder (OCD) and personality disorders (PDs) using an OCD sample and clinician-administered structured interviews; (2) exploring the associations of different cluster comorbid PDs with the specific symptom dimensions of OCD; (3) analyzing the variables which could play a significant role in the probability of having at least one comorbid PD, controlling for confounding variables. The SCID-II and Y-BOCS, together with a series of self-report measures of OCD, depression and anxiety symptoms were administered to a clinical sample of 159 patients with a primary diagnosis of OCD. 20.8 % of the participants suffered from at least one comorbid PD; the most common was obsessive-compulsive PD (9.4 %), followed by narcissistic PD (6.3 %). In OCD patients with comorbid cluster C PDs, the percentage of responsibility for harm, injury, or bad luck symptoms was significantly greater than other OCD symptom dimensions (p < .005). Logistic regression found some evidence supporting the association between severity of OCD symptoms and comorbid PDs. PDs are prevalent among Italian people with OCD and should be routinely assessed, as comorbidity may affect help-seeking behaviour and response to treatment.

Obsessive-Compulsive Personality Traits in Youth with Obsessive-Compulsive Disorder

While interest in the relationship between obsessive-compulsive disorder (OCD) and obsessive compulsive personality disorder has increased, there are currently no studies that have examined the presence of obsessive compulsive personality traits (OCPTs) in youth. The current study sought to determine the latent factors and psychometric properties of a modified version of the Childhood Retrospective Perfectionism Questionnaire (CHIRP) and examine the correlates of specific OCPTs (e.g., rigidity, perfectionism) in youth with OCD. Participants included 96 treatment-seeking youth diagnosed with primary OCD (and a parent). Parents and youth completed measures of OCPTs, OCD severity, depression, and disability. A confirmatory factor analysis of the modified CHIRP resulted in a two-factor model: perfectionism and preoccupation with details. The CHIRP and its subscales demonstrated acceptable internal consistency and preliminary evidence for convergent and divergent validity. Obsessive compulsive traits in youth were also found to be associated with the checking, symmetry and contamination symptom dimensions.

The neuropsychology of obsessive-compulsive personality disorder: a new analysis

BACKGROUND

Obsessive compulsive personality disorder (OCPD) is characterized by perfectionism, need for control, and cognitive rigidity. Currently, little neuropsychological data exist on this condition, though emerging evidence does suggest that disorders marked by compulsivity, including obsessive-compulsive disorder (OCD), are associated with impairment in cognitive flexibility and executive planning on neurocognitive tasks.

AIM

The current study investigated the neurocognitive profile in a nonclinical community-based sample of people fulfilling diagnostic criteria for OCPD in the absence of major psychiatric comorbidity.

METHOD

Twenty-one nonclinical subjects who fulfilled Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria for OCPD were compared with 15 healthy controls on selected clinical and neurocognitive tasks. OCPD was measured using the Compulsive Personality Assessment Scale (CPAS). Participants completed tests from the Cambridge Automated Neuropsychological Test Battery including tests of set shifting (Intra-Extra Dimensional [IED] Set Shifting) executive planning (Stockings of Cambridge [SOC]), and decision making (Cambridge Gamble Task [CGT]).

RESULTS

The OCPD group made significantly more IED-ED shift errors and total shift errors, and also showed longer mean initial thinking time on the SOC at moderate levels of difficulty. No differences emerged on the CGT.

CONCLUSIONS

Nonclinical cases of OCPD showed significant cognitive inflexibility coupled with executive planning deficits, whereas decision-making remained intact. This profile of impairment overlaps with that of OCD and implies that common neuropsychological changes affect individuals with these disorders.

The correlates of obsessive-compulsive, schizotypal, and borderline personality disorders in obsessive-compulsive disorder

We assessed correlates of obsessive-compulsive (OCPD), schizotypal (SPD) and borderline (BPD) personality disorders in 110 obsessive-compulsive disorder (OCD) patients. We found OCD patients with OCPD (20.9%) to exhibit higher rates of hoarding and bipolar disorders, increased severity of hoarding and symmetry, lower prevalence of unacceptable thoughts involving sex and religion and less non-planning impulsivity. Conversely, OCD patients with SPD (13.6%) displayed more frequently bipolar disorder, increased severity of depression and OCD neutralization, greater prevalence of "low-order" behaviors (i.e., touching), lower low-planning impulsivity and greater "behavioral" compulsivity. Finally, in exploratory analyses, OCD patients with BPD (21.8%) exhibited lower education, higher rates of several comorbid psychiatric disorders, greater frequency of compulsions involving interpersonal domains (e.g. reassurance seeking), increased severity of depression, anxiety and OCD dimensions other than symmetry and hoarding, more motor and non-planning impulsivity, and greater "cognitive" compulsivity. These findings highlight the importance of assessing personality disorders in OCD samples.

Obsessive-compulsive (anankastic) personality disorder: toward the ICD-11 classification

Obsessive-compulsive personality disorder (OCPD) is an early-onset disorder characterized by perfectionism, need for control, and cognitive rigidity. Its nosological status is currently under review. Historically, OCPD has been conceptualized as bearing a close relationship with obsessive-compulsive disorder (OCD). In this article, we discuss the diagnosis of OCPD in anticipation of its review for the ICD-11, from the perspective of clinical utility, global applicability, and research planning. Considering the recent establishment of an obsessive-compulsive and related disorders (OCRD) category in DSM-5, we focus on the relationship between OCPD and the disorders that are currently thought to bear a close relationship with OCD, including DSM-5 OCRD, and other compulsive disorders such as eating disorder and autistic spectrum disorder (that were not included in the DSM-5 OCRD category), as well as with the personality disorders, focusing on nosological determinants such as phenomenology, course of illness, heritability, environmental risk factors, comorbidity, neurocognitive endophenotypes, and treatment response. Based on this analysis, we attempt to draw conclusions as to its optimal placement in diagnostic systems and draw attention to key research questions that could be explored in field trials.

Obsessive-compulsive personality disorder: a current review

This review provides a current overview on the diagnostics, epidemiology, co-occurrences, aetiology and treatment of obsessive-compulsive personality disorder (OCPD). The diagnostic criteria for OCPD according to the recently published Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) include an official set of criteria for clinical practice and a new, alternative set of criteria for research purposes. OCPD is a personality disorder prevalent in the general population (3-8 %) that is more common in older and less educated individuals. Findings on sex distribution and course of OCPD are inconsistent. OCPD is comorbid with several other medical and psychological conditions. As for causes of OCPD, most empirical evidence provides support for disturbed attachment as well as the heritability of OCPD. So far, cognitive (behavioural) therapy is the best validated treatment of OCPD. Self-esteem variability, stronger early alliances as well as the distress level seem to predict cognitive (behavioural) therapy outcome. Future research is needed to further advance knowledge in OCPD and to resolve inconsistencies.

Prevalence of Childhood Obsessive-Compulsive Personality Traits in Adults with Obsessive Compulsive Disorder versus Obsessive Compulsive Personality Disorder

Identifying risk factors of psychopathology has been an important research challenge. Prior studies examining the impact of childhood temperament on adult disorder have largely focused on undercontrolled and inhibited presentations, with little study of overcontrolled traits such as obsessive-compulsive personality traits (OCPTs). We compared rates of childhood OCPTs in adults with OCD (without OCPD) (n = 28) to adults with OCPD (without OCD) (n = 27), adults with both OCD and OCPD (n = 28), and healthy controls (HC) (n= 28), using the Childhood Retrospective Perfectionism Questionnaire, a validated measure of perfectionism, inflexibility, and drive for order. Adults with OCPD (both with and without comorbid OCD) reported higher rates of all three childhood OCPTs relative to HC. Individuals with OCD (without OCPD) reported higher rates of inflexibility and drive for order relative to HC, suggesting that these traits may presage the development of OCD, independent of OCPD. Childhood OCPTs were associated with particular OCD symptom dimensions in adulthood (contamination/cleaning, doubt/checking, and symmetry/ordering), independent of OCD onset age and OCPD diagnosis. Longitudinal prospective studies evaluating OCPTs in children are needed to better understand the progression of these traits from childhood to adulthood and their ability to predict future psychopathology.

The relationship between alexithymia, anxiety, depression, and internet addiction severity in a sample of Italian high school students

We aimed to assess whether Internet addiction (IA) severity was related to alexithymia scores among high school students, taking into account the role of gender differences and the possible effect of anxiety, depression, and age. Participants in the study were 600 students (ages ranging from 13 to 22; 48.16% girls) recruited from three high schools in two cities from Southern Italy. Participants completed a sociodemographic questionnaire, the Toronto Alexithymia Scale, the Internet Addiction Test, the Hamilton Anxiety Scale, and the Hamilton Depression Scale. The findings of the study showed that IA scores were associated with alexithymia scores, over and above the effect of negative emotions and age. Students with pathological levels of alexithymia reported higher scores on IA severity. In particular, results showed that difficulty in identifying feelings was significantly associated with higher scores on IA severity. No effect of gender was found. Implications for clinicians were discussed.

Capacity to delay reward differentiates obsessive-compulsive disorder and obsessive-compulsive personality disorder

BACKGROUND

Although the relationship between obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD) has long been debated, clinical samples of OCD (without OCPD) and OCPD (without OCD) have never been systematically compared. We studied whether individuals with OCD, OCPD, or both conditions differ on symptomatology, functioning, and a measure of self-control: the capacity to delay reward.

METHODS

Twenty-five OCD, 25 OCPD, 25 comorbid OCD + OCPD, and 25 healthy control subjects completed clinical assessments and a validated intertemporal choice task that measures capacity to forego small immediate rewards for larger delayed rewards.

RESULTS

OCD and OCPD subjects both showed impairment in psychosocial functioning and quality of life, as well as compulsive behavior, but only subjects with OCD reported obsessions. Individuals with OCPD, with or without comorbid OCD, discounted the value of delayed monetary rewards significantly less than OCD and healthy control subjects. This excessive capacity to delay reward discriminates OCPD from OCD and is associated with perfectionism and rigidity.

CONCLUSIONS

OCD and OCPD are both impairing disorders marked by compulsive behaviors, but they can be differentiated by the presence of obsessions in OCD and by excessive capacity to delay reward in OCPD. That individuals with OCPD show less temporal discounting (suggestive of excessive self-control), whereas prior studies have shown that individuals with substance use disorders show greater discounting (suggestive of impulsivity), supports the premise that this component of self-control lies on a continuum in which both extremes (impulsivity and overcontrol) contribute to psychopathology.

New diagnostic perspectives on obsessive-compulsive personality disorder and its links with other conditions

PURPOSE OF REVIEW

This review examines the conceptualization of obsessive-compulsive personality disorder (OCPD), its epidemiology and efforts to better understand the relationships between OCPD and other conditions.

RECENT FINDINGS

The alternative Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders conceptualization of OCPD is radically different in that it combines categorical and dimensional diagnostic approaches and introduces a hierarchy of diagnostic criteria. OCPD is one of the most common personality disorders in the general population. The relationship between OCPD and obsessive-compulsive disorder (OCD) is important, but to a large extent obfuscated by the overlap between their diagnostic criteria. Frequent changes in the OCPD diagnostic criteria make it difficult to ascertain the 'true' relationship between OCPD and OCD. It is not uncommon for OCPD to occur with anorexia nervosa, depression, hypochondriasis, certain other personality disorders and Parkinson's disease, but further research is necessary to understand the implications of these links.

SUMMARY

OCPD is yet to be conceptualized consistently and in the manner that would make a clear and well supported distinction between its core and peripheral features. Future studies need to separate a genuine from overlap-driven co-occurrence of OCPD and other conditions, as that would give a better insight into the way in which OCPD relates to other disorders.

Personality disorders in obsessive-compulsive disorder: a comparative study versus other anxiety disorders

Objective. The purpose of this paper is to provide evidence for the relationship between personality disorders (PDs), obsessive compulsive disorder (OCD), and other anxiety disorders different from OCD (non-OCD) symptomatology. Method. The sample consisted of a group of 122 individuals divided into three groups (41 OCD; 40 non-OCD, and 41 controls) matched by sex, age, and educational level. All the individuals answered the IPDE questionnaire and were evaluated by means of the SCID-I and SCID-II interviews. Results. Patients with OCD and non-OCD present a higher presence of PD. There was an increase in cluster C diagnoses in both groups, with no statistically significant differences between them. Conclusions. Presenting anxiety disorder seems to cause a specific vulnerability for PD. Most of the PDs that were presented belonged to cluster C. Obsessive Compulsive Personality Disorder (OCPD) is the most common among OCD. However, it does not occur more frequently among OCD patients than among other anxious patients, which does not confirm the continuum between obsessive personality and OCD. Implications for categorical and dimensional diagnoses are discussed.

Comorbidity of personality disorders in anxiety disorders: a meta-analysis of 30 years of research

BACKGROUND

A comprehensive meta-analysis to identify the proportions of comorbid personality disorders (PD) across the major subtypes of anxiety disorders (AD) has not previously been published.

METHODS

A literature search identified 125 empirical papers from the period 1980-2010 on patients with panic disorders, social phobia, generalised anxiety, obsessive-compulsive (OCD) and post-traumatic stress disorder (PTSD). Several moderators were coded.

RESULTS

The rate of any comorbid PD was high across all ADs, ranging from .35 for PTSD to .52 for OCD. Cluster C PDs occurred more than twice as often as cluster A or B PDs. Within cluster C the avoidant PD occurred most frequently, followed by the obsessive-compulsive and the dependent PD. PTSD showed the most heterogeneous clinical picture and social phobia was highly comorbid with avoidant PD. A range of moderators were examined, but most were non-significant or of small effects, except an early age of onset, which in social phobia increased the risk of an avoidant PD considerably. Gender or duration of an AD was not related to variation in PD comorbidity.

LIMITATIONS

Blind rating of diagnoses was recorded from the papers as an indication of diagnostic validity. However, as too few studies reported it the validity of the comorbid estimates of PD was less strong.

CONCLUSIONS

The findings provided support to several of the proposed changes in the forthcoming DSM-5. Further comorbidity studies are needed in view of the substantial changes in how PDs will be diagnosed in the DSM-5.

Obsessive-compulsive personality disorder co-occurring with obsessive-compulsive disorder: Conceptual and clinical implications

OBJECTIVES

There are ongoing uncertainties in the relationship between obsessive-compulsive disorder (OCD) and obsessive-compulsive personality disorder (OCPD). This study aimed to test the proposition that OCPD may be a marker of severity of OCD by comparing groups of OCD individuals with and without OCPD on a number of variables.

METHOD

A total of 148 adults with a principal diagnosis of OCD were administered the Mini International Neuropsychiatric Interview, Yale-Brown Obsessive-Compulsive Scale, Sheehan Disability Scale, Vancouver Obsessional Compulsive Inventory and Symptom Checklist 90-Revised. Participants with a DSM-IV diagnosis of OCPD were compared with those without OCPD.

RESULTS

Some 70 (47.3%) participants were diagnosed with OCPD. The groups of participants with and without OCPD did not differ significantly with respect to any of the demographic variables, clinician-rated severity of OCD, levels of disability and mean age of onset of OCD. All self-rated OCD symptom dimensions except for contamination and checking were significantly more prominent in participants with OCPD, as were all self-rated dimensions of psychopathology. Participants with OCPD had significantly more frequent hoarding compulsions and obsessions involving a need to collect and keep objects. Of Axis I disorders, only panic disorder was significantly more frequent in participants with OCPD than in those without OCPD.

CONCLUSIONS

A high frequency of OCPD among individuals with OCD suggests a strong, although not necessarily a unique, relationship between the two conditions. This finding may also be a consequence of the blurring of the boundary between OCD and OCPD by postulating that hoarding and hoarding-like behaviours characterise both disorders. Results of this study do not support the notion that OCD with OCPD is a marker of clinician-rated severity of OCD. However, individuals with OCPD had more prominent OCD symptoms, they were more distressed and exhibited various other psychopathological phenomena more intensely, which is likely to complicate their treatment.

Symptom dimensions in obsessive-compulsive disorder: phenomenology and treatment outcomes with exposure and ritual prevention

BACKGROUND

Obsessive-compulsive disorder (OCD) is a severe condition with varied symptom presentations. Currently, the cognitive-behavioral treatment with the most empirical support is exposure and ritual prevention (EX/RP); however, clinical impression and some empirical data suggest that certain OCD symptoms are more responsive to treatment than others.

METHODS

Prior work identifying symptom dimensions within OCD is discussed, including epidemiological findings, factor analytic studies, and biological findings. Symptom dimensions most reliably identified include contamination/cleaning, doubt about harm/checking, symmetry/ordering, and unacceptable thoughts/mental rituals. The phenomenology of each of these subtypes is described and research literature is summarized, emphasizing the differential effects of EX/RP and its variants on each of these primary symptom dimensions.

RESULTS

To date it appears that EX/RP is an effective treatment for the various OCD dimensions, although not all dimensions have been adequately studied (i.e. symmetry and ordering).

CONCLUSIONS

Modifications to treatment may be warranted for some types of symptoms. Clinical implications and directions for future research are discussed.

Alexithymia, negative emotions, and sexual behavior in heterosexual university students from Italy

Alexithymia is a construct which denotes thought characterized by pragmatic content, an inability to recognize and verbally express emotion, a difficulty in distinguishing between feelings and bodily sensations, and a limitation in fantasy life. Research has revealed a role for alexithymia in different kinds of sexual dysfunctions; it was also associated with reduced frequency of penile-vaginal intercourse but not with sexual behaviors-like masturbation-which do not include an emotional interaction in normal individuals. The aim of this research was to further investigate the association between alexithymia scores and sexual behavior in a sample of normal individuals, taking into account the role of gender differences and the possible effect of negative emotions (depression, anxiety, and anger). Participants were 300 university students (142 men and 158 women); sexual behavior was measured by the Sex and the Average Woman (or Man) Scale while alexithymia was measured with the Toronto Alexithymia Scale. The findings of the study showed that higher alexithymia scores were associated with lower levels of sexual satisfaction and higher levels of sexual detachment for females, and with sexual shyness and sexual nervousness for both genders. Results also suggested that the correlations between alexithymia scores and sexual behavior are partially influenced by the effect of negative emotions. Overall, it seems that the same detachment which denotes the alexithymic interpersonal style also characterizes sexual behavior.

Obsessive-compulsive personality traits: how are they related to OCD severity?

Previous research has demonstrated that comorbid obsessive-compulsive personality disorder (OCPD) in patients with obsessive-compulsive disorder (OCD) is associated with greater overall OCD severity, functional impairment, and poorer treatment outcomes (Coles et al., 2008; Lochner et al., 2010; Pinto, 2009). However, research has only examined the effects of OCPD categorically and has yet to thoroughly examine the impact of individual OCPD characteristics dimensionally. Thus, the present study sought to investigate the relationships between various OCPD-related dimensions (e.g., perfectionism, rigidity) and OCD symptomology and severity. The study recruited a sample of OCD patients (n=51) in the OCD units of two residential treatment facilities. Findings yielded significant relationships between OCD severity and the following OCPD dimensions: flexibility, doubts about actions (a dimension of perfectionism), and hoarding. Interpretations of these results and the implications for diagnosis, prognosis, and treatment outcome are discussed. Furthermore, the current study provides insight into a unique perspective which leaves room for more symptom overlap and variability between OCD and OCPD.

Comorbid obsessive-compulsive personality disorder in obsessive-compulsive disorder (OCD): a marker of severity

INTRODUCTION

Comorbid obsessive-compulsive personality disorder (OCPD) is well-described in obsessive-compulsive disorder (OCD). It remains unclear, however, whether OCPD in OCD represents a distinct subtype of OCD or whether it is simply a marker of severity in OCD.

MATERIALS AND METHODS

The aim of this study was to compare a large sample of OCD subjects (n=403) with and without OCPD on a range of demographic, clinical and genetic characteristics to evaluate whether comorbid OCPD in OCD represents a distinct subtype of OCD, or is a marker of severity.

RESULTS

Our findings suggest that OCD with and without OCPD are similar in terms of gender distribution and age at onset of OC symptoms. Compared to OCD-OCPD (n=267, 66%), those with OCD+OCPD (n=136, 34%) are more likely to present with the OC symptom dimensions which reflect the diagnostic criteria for OCPD (e.g., hoarding), and have significantly greater OCD severity, comorbidity, functional impairment, and poorer insight. Furthermore there are no differences in distribution of gene variants, or response to treatment in the two groups.

CONCLUSION

The majority of our findings suggest that in OCD, patients with OCPD do not have a highly distinctive phenomenological or genetic profile, but rather that OCPD represents a marker of severity.

Obsessive compulsive personality disorder as a predictor of exposure and ritual prevention outcome for obsessive compulsive disorder

Despite elevated rates of obsessive compulsive personality disorder (OCPD) in patients with obsessive compulsive disorder (OCD), no study has specifically examined comorbid OCPD as a predictor of exposure and ritual prevention (EX/RP) outcome. Participants were adult outpatients (n = 49) with primary OCD and a Yale-Brown Obsessive Compulsive Scale (YBOCS) total score ≥ 16 despite a therapeutic serotonin reuptake inhibitor dose for at least 12 weeks prior to entry. Participants received 17 sessions of EX/RP over 8 weeks. OCD severity was assessed with the YBOCS pre- and post-treatment by independent evaluators. At baseline, 34.7% of the OCD sample met criteria for comorbid DSM-IV OCPD, assessed by structured interview. OCPD was tested as a predictor of outcome both as a diagnostic category and as a dimensional score (severity) based on the total number of OCPD symptoms coded as present and clinically significant at baseline. Both OCPD diagnosis and greater OCPD severity predicted worse EX/RP outcome, controlling for baseline OCD severity, Axis I and II comorbidity, prior treatment, quality of life, and gender. When the individual OCPD criteria were tested separately, only perfectionism predicted worse treatment outcome, over and above the previously mentioned covariates. These findings highlight the importance of assessing OCPD and suggest a need to directly address OCPD-related traits, especially perfectionism, in the context of EX/RP to minimize their interference in outcome.

Family accommodation in obsessive-compulsive disorder: Relation to symptom dimensions, clinical and family characteristics

Family accommodation is the term used to indicate the process whereby family members of patients with obsessive-compulsive disorder (OCD) assist or participate in the patients' rituals. Family accommodation is a relatively under-researched phenomenon in OCD but an important one because it may be predictive of poor treatment outcome. This study systematically examined several socio-demographic and clinical variables that are associated with family accommodation in a well-characterized sample of adult patients and their healthy family members. Experienced clinicians administered the Family Accommodation Scale (FAS) to 141 psychopathology-free family members cohabiting with 97 patients with OCD. The items of the FAS were first subjected to principal component analysis (PCA) and the resulting domains of family accommodation (Participation, Modification, and Distress and Consequences) introduced as dependent variables in a series of multiple regression models assessing the relationship between family accommodation domains and a wide range of clinical variables, including Axis I and II psychopathology and symptom dimensions derived from the Yale-Brown Obsessive-Compulsive Scale (YBOCS) Symptom Checklist. The results showed that family accommodation was common, with the provision of reassurance, participation in rituals and assisting the patient in avoidance being the most frequent practices (occurring on a daily basis in 47%, 35%, and 43% of family members, respectively). The PCA of the YBOCS Symptom Checklist yielded four symptom dimensions, which were identical to those previously identified in the international literature. Multiple linear regression analyses showed that a higher score on the contamination/washing symptom dimension and a positive family history for an anxiety disorder other than OCD (referring to a family member other than the participant in this study) predicted greater scores on several domains of family accommodation. Our study confirms that family accommodation is frequent and distressing in psychopathology-free family members cohabiting with adult OCD patients. Family accommodation is particularly frequent and distressing when the patient has prominent contamination/washing symptoms and/or when another family member has a history of an anxiety disorder. Such families may be more likely to benefit from family-based interventions but this remains to be tested in controlled trials.

Should an obsessive-compulsive spectrum grouping of disorders be included in DSM-V?

The obsessive-compulsive (OC) spectrum has been discussed in the literature for two decades. Proponents of this concept propose that certain disorders characterized by repetitive thoughts and/or behaviors are related to obsessive-compulsive disorder (OCD), and suggest that such disorders be grouped together in the same category (i.e. grouping, or "chapter") in DSM. This article addresses this topic and presents options and preliminary recommendations to be considered for DSM-V. The article builds upon and extends prior reviews of this topic that were prepared for and discussed at a DSM-V Research Planning Conference on Obsessive-Compulsive Spectrum Disorders held in 2006. Our preliminary recommendation is that an OC-spectrum grouping of disorders be included in DSM-V. Furthermore, we preliminarily recommend that consideration be given to including this group of disorders within a larger supraordinate category of "Anxiety and Obsessive-Compulsive Spectrum Disorders." These preliminary recommendations must be evaluated in light of recommendations for, and constraints upon, the overall structure of DSM-V.

Comorbidity of obsessive-compulsive disorder with obsessive-compulsive personality disorder: Does it imply a specific subtype of obsessive-compulsive disorder?

The present study examined whether the comorbidity of obsessive-compulsive personality disorder (OCPD) and obsessive-compulsive disorder (OCD) constitute a specific subtype of OCD. The study sample consisted of 146 consecutive outpatients with a DSM-IV diagnosis of OCD. Diagnoses were established using MINI, IPDE, YBOCS and YBOCS-SC. OCD patients with comorbid OCPD were compared with OCD patients without OCPD on various sociodemographic and clinical variables. Almost one third of the OCD subjects met criteria for comorbid OCPD. OCD+OCPD patients had a significantly earlier age at onset of initial OC symptoms, earlier age at onset of OCD and more obsessions and compulsions than pure obsessions compared to the patients with OCDOCPD. OCD+OCPD patients also had a higher rate of comorbidity with avoidant personality disorder and showed more impairment in global functioning. There were not differences between the two sub-groups on severity of OCD symptoms and also on type of OCD onset. Our results indicate that the comorbidity of OCD with OCPD is associated with a number of specific clinical characteristics of OCD. These findings in conjunction with of current clinical, family and genetic studies provide some initial evidence that OCD comorbid with OCPD constitute a specific subtype of OCD.

Clinical predictors of health-related quality of life in obsessive-compulsive disorder

BACKGROUND

Obsessive-compulsive disorder (OCD) is a serious mental disorder that has severe impact on a person's quality of life and those living with a person with OCD. This study systematically examined the clinical variables that are predictive of several domains of quality of life in a large, well-characterized sample of patients attending a specialized treatment unit in Italy.

METHODS

The Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36) was administered to 151 patients with OCD and their scores were compared to published Italian norms. A principal component analysis was performed on the 13 major categories of the Yale-Brown Obsessive-Compulsive Scale (YBOCS) Symptom Checklist to derive symptom dimension scores. The association between various domains of quality of life and a wide range of clinical variables, including symptom dimension scores, was examined using multiple regression models.

RESULTS

Compared to published Italian norms, patients with OCD showed impairment in most domains of quality of life, particularly social functioning. The principal component analysis of the YBOCS Symptom Checklist yielded 5 symptom dimensions that were identical to those previously identified in the international literature. Fewer years of education, higher depression scores (Hamilton Rating Scale for Depression), higher YBOCS obsessions scores, and higher scores on the contamination/washing symptom dimension independently predicted a poorer score on the physical health component of the SF-36. Higher YBOCS compulsions scores, the presence of a current mood disorder, and higher anxiety scores (Hamilton Rating Scale for Anxiety) predicted a poorer score on the mental health component of the SF-36.

CONCLUSIONS

Our study confirms that quality of life is severely impaired in patients with OCD. The identification of predictors of quality of life in OCD can help clinicians to adapt their treatment protocols to cater for the individual needs of their patients.

Anti-brain antibodies in adult patients with obsessive-compulsive disorder

BACKGROUND

An autoimmune hypothesis has been suggested for a subtype of Obsessive-Compulsive Disorder (OCD) with childhood onset: obsessions, compulsions and/or tics would result from anti-streptococcal antibodies that cross-react with basal ganglia tissue based on molecular mimicry. Consistent with this hypothesis anti-brain antibodies were detected in sera of children with OCD and/or Tourette's syndrome. In the present study, we tested whether adults with OCD have anti-brain antibodies or other antibodies that serve as markers of autoimmunity.

METHODS

Seventy-four DSM-IV OCD (YBOCS> or =16) subjects were recruited and compared to 44 controls with a current Major Depressive Episode for neurological symptoms, ALSO titres, anti-tissue and anti-thyroid antibodies. Anti-brain antibodies were tested by immunohistochemistry and Western blotting methods.

RESULTS

The proportion of subjects with tic comorbidity or positive ASLO titre (>200 IU/ml) was significantly greater in OCD than in MDE patients (21.6 vs. 2.3% and 16.3 vs. 2.3%, respectively). No other differences in antibody parameters were found. 4/74 OCD patients (5.4%) and none of the controls resulted positive for anti-brain antibodies, with a band around 50-60 kDa at the Western blot analysis.

LIMITATIONS

The methodology used to assess anti-brain antibodies.

CONCLUSIONS

The majority of adult OCD patients do not seem to have autoimmunity disturbances as compared to a control group. However, a greater percentage of subjects with positive ASLO titres were found among OCD patients. For a small proportion of OCD patients, moreover, autoimmune reactions towards neuronal structures are present although further investigations are needed to demonstrate its etiopathogenetic relevance.

8-week, single-blind, randomized trial comparing risperidone versus olanzapine augmentation of serotonin reuptake inhibitors in treatment-resistant obsessive-compulsive disorder

The aim of the present pilot study was to investigate in a single-blind manner, over a period of 8 weeks, the comparative efficacy and tolerability of risperidone versus olanzapine addition in the treatment of OCD patients who did not show a >or=35% decrease in the YBOCS score after 16-week SRI treatment (defined as resistant). The study consisted of two different phases: a 16-week open-label prospective phase to ascertain resistance to SRI treatment and an 8-week single-blind addition phase for resistant subjects only. Ninety-six subjects with DSM-IV OCD (YBOCS>or=16) entered the open-label prospective phase; at the end of the 16-week period, 50 (52%) were judged to be resistant and were randomized to receive risperidone (1 to 3 mg/d) or olanzapine (2.5 to 10 mg/d) addition for 8 weeks. Overall, patients in both groups responded significantly, without differences between the two treatment groups; although no differences emerged for the proportion of patients reporting at least an adverse event, the profiles of adverse experiences differed significantly, being risperidone associated with amenorrhoea and olanzapine with weight gain.

Early-onset obsessive-compulsive disorder and personality disorders in adulthood

Obsessive-compulsive disorder (OCD) often emerges in childhood or adolescence. The aim of the present study was to evaluate whether adult patients with prepuberal onset differ from subjects with later onset in terms of personality disorder comorbidity. The Structured Clinical Interview for DSM-IV Axis II Disorders was used to assess 148 patients with a principal diagnosis of OCD according to the Structured Clinical Interview for DSM-IV Axis I Disorders. The following two subgroups of subjects were selected according to the age at onset of symptomatology: patients with an early-onset (< or =10 years), and patients with a later onset (> or =17 years). Of the 148 patients screened for the present study, 33 (22.3%) had an early onset and 1369 (46.6%) had a later onset. With regard to personality disorders, early-onset patients showed more OC personality disorders (OCPD) than later onset patients. Our finding suggests that OCD in childhood increases the risk for developing OCPD in adulthood, or that early-onset OCD and OCPD share a common pathogenesis.

OCD with comorbid OCPD: a subtype of OCD?

OBJECTIVE

The current study examined the validity of using comorbid obsessive-compulsive personality disorder (OCPD) to identify a subtype of individuals with obsessive-compulsive disorder (OCD).

METHOD

Data for the current study were drawn from an ongoing, longitudinal study of the course of OCD and include intake assessments for 238 subjects with primary and current DSM-IV OCD who were treatment seeking.

RESULTS

More than one fourth of the subjects (N=65, 27%) met criteria for comorbid OCPD. As compared to OCD-OCPD subjects, the OCD+OCPD subjects had a significantly younger age at onset of first OC symptoms (p=0.013), and a higher rate of symmetry and hoarding obsessions, and cleaning, ordering, repeating, and hoarding compulsions (all p's<0.01). Individuals with OCD+OCPD had higher rates of comorbid anxiety disorders (p=0.007) and avoidant personality disorder (p=0.006). The OCD+OCPD subjects also had significantly lower ratings of global functioning (p=0.001) and more impaired social functioning (p=0.004), despite a lack of significant differences on overall severity of OCD symptoms.

CONCLUSIONS

Our findings indicate that individuals with both OCD and OCPD have distinct clinical characteristics in terms of age at onset of initial OC symptoms, the types of obsessions and compulsions they experience, and psychiatric comorbidity. Our findings, coupled with data from family studies showing a higher than expected frequency of OCPD in first degree relatives of OCD probands, suggest that OCD associated with OCPD may represent a specific subtype of OCD. Additional research is warranted to further establish the validity of this subtype.

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.

Does obsessive-compulsive personality disorder belong within the obsessive-compulsive spectrum?

It has been proposed that certain Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition Axis I disorders share overlapping clinical features, genetic contributions, and treatment response and fall within an "obsessive-compulsive" spectrum. Obsessive-compulsive personality disorder (OCPD) resembles obsessive-compulsive disorder (OCD) and other spectrum disorders in terms of phenomenology, comorbidity, neurocognition, and treatment response. This article critically examines the nosological profile of OCPD with special reference to OCD and related disorders. By viewing OCPD as a candidate member of the obsessive-compulsive spectrum, we gain a fresh approach to understanding its neurobiology, etiology, and potential treatments.

Axis I and II comorbidities in subjects with and without nocturnal panic

Our purpose in this study was to compare the prevalence and pattern of Axis I and II comorbidities between patients with and without nocturnal panic (NP) attacks. One hundred and sixteen subjects with panic disorder (PD; according to DSM-IV criteria) were included: We assessed Axis I and II comorbidities using the Structured Clinical Interview for DSM-IV Axis I and II disorders, respectively. Of the sample, 27.6% of subjects had recurrent nocturnal panic attacks (NP group). Subjects with NP did not differ from those without in any sociodemographic or clinical characteristics. In the sample (94 subjects), 81% had at least one lifetime comorbid Axis I disorder, without significant differences between subjects with and without nocturnal panic even when considering comorbidity rates for single disorders; a trend toward significance was found for anorexia nervosa and somatization disorder, which both were more frequent among subjects with NP. Concerning Axis II disorders, 49.1% of the sample (57 subjects) met the criteria for at least one personality disorder, without significant differences between patients with and without NP. No significant differences were detected in comorbidity rates for any single Axis II personality disorder. Personality might play a relevant role in influencing treatment approaches to PD, but it does not appear to be a differential focus of concern in patients with compared to those without NP.

Relations between Obsessive-Compulsive Disorder and personality: beyond Axis I-Axis II comorbidity

Most research on relations between Obsessive-Compulsive Disorder (OCD) and personality addresses only comorbidity rates between OCD and Obsessive-Compulsive Personality Disorder (OCPD). We first investigated empirical OCD-OCPD relations, but then also examined patterns of dimensional traits in OCD patients versus students and general outpatients. Results did not support a specific OCD-OCPD relation and the implications of this conclusion are discussed. Regarding traits, OCD patients shared with other patients elevated negative affectivity and lower positive affectivity. Differences on several lower order dimensions, including lower scores on manipulativeness, mistrust, and disinhibition distinguished the personality profile of OCD patients from others. Also noteworthy was a pattern of very low self-image for OCD patients, as suggested by the combination of low self-esteem and low entitlement scores. Overall, OCD patients showed a more specific pattern of personality pathology than did general outpatients, who were elevated more generally across personality disorders and negative affectivity scales.

Obsessive-compulsive disorder and personality disorder: evidence from the British National Survey of Psychiatric Morbidity 2000

BACKGROUND

Previous studies indicate that most individuals with obsessive-compulsive disorder (OCD) have comorbid personality disorders (PDs), particularly from the anxious cluster. However, the nature and strength of this association remains unclear, as the majority of previous studies have relied heavily on clinical populations. We analysed the prevalence of screen positive personality disorder in a representative sample of adults with OCD living in private households in the UK.

METHODS

A secondary analysis of data from the 2000 British National Survey of Psychiatric Morbidity. The prevalence of PD, as determined by the SCID-II questionnaire, was compared in participants with OCD, with other neuroses and non-neurotic controls. Within the OCD group we also analysed possible differences relating to sex and subtypes of the disorder.

RESULTS

The prevalence of any screen positive PD in the OCD group (N=108) was 74%, significantly greater than in both control groups. The most common screen positive categories were paranoid, obsessive-compulsive, avoidant, schizoid and schizotypal. Compared to participants with other neuroses, OCD cases were more likely to screen positively for paranoid, avoidant, schizotypal, dependent and narcissistic PDs. Men with OCD were more likely to screen positively for PDs in general, cluster A PDs, antisocial, obsessive-compulsive and narcissistic categories. The presence of comorbid neuroses in people with OCD had no significant effect on the prevalence of PD.

CONCLUSIONS

Personality pathology is highly prevalent among people with OCD who are living in the community and should be routinely assessed, as it may affect help-seeking behaviour and response to treatment.