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The comorbidity of cluster C personality disorders in obsessive compulsive disorder as a marker of anxiety and depression severity

Published online by Cambridge University Press:  23 March 2020

A. Pozza ,
S. Domenichetti ,
G.P. Mazzoni  and
D. Dèttore
A. Pozza*
Affiliation:
University of Florence, Department of Experimental and Clinica Medicine, Florence, Italy
S. Domenichetti
Affiliation:
Florence Healthcare Services, Department of Mental Health, Florence, Italy
G.P. Mazzoni
Affiliation:
“Studi Cognitivi” Cognitive Psychotherapy and Research Center, Postgraduate Program on Cognitive Psychotherapy, Florence, Italy
D. Dèttore
Affiliation:
University of Florence, Department of Health Sciences, Florence, Italy
*
*Corresponding author.

Abstract

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Introduction

Comorbid Cluster C Personality Disorders (PDs) are the most prevalent PDs in Obsessive-Compulsive Disorder (OCD). Investigating clinical correlates associated to OCD with Cluster C PDs may allow identifying tailored treatment strategies.

Objectives

The current study examined whether OCD with comorbid cluster C PDs is associated to more severe OCD symptoms, anxiety and depression relative to OCD with comorbid cluster B PDs or OCD alone.

Methods

Two hundred thirty-nine patients with OCD were included (mean age = 35.64, SD = 11.08, 51% females). Seventeen percent had a comorbid Cluster C PD, 8% had a comorbid Cluster B PD, and 75% had OCD alone. The Structured Clinical Interview for Axis II Disorders, Yale-Brown Obsessive Compulsive Scale, Beck Anxiety Inventory, Beck Depression Inventory-II were administered.

Results

Patients with comorbid Cluster C PDs reported more severe depression and anxiety than those with comorbid Cluster B PDs (F = 10.48, P < 0.001) or with OCD alone (F = 9.10, P < 0.001). Patients with comorbid Cluster C PDs had more severe OCD symptoms than those with OCD alone but not than those with comorbid Cluster B PDs (F = 3.12, P < 0.05).

Conclusions

OCD with Cluster C PDs could be a subtype with more severe anxiety and depression. These findings could be explained with the fact that Cluster C PDs are characterized by behaviours, which can be seen as maladaptive attempts to cope with anxiety and depression. Tailored treatment strategies for OCD with comorbid Cluster C PDs are discussed to target co-occurring anxiety and depression.

Disclosure of interest

The authors have not supplied their declaration of competing interest.

Type
EW364
Information
European Psychiatry , Volume 33 , Issue S1: Abstracts of the 24th European Congress of Psychiatry , March 2016 , pp. S202 - S203
Copyright
Copyright © European Psychiatric Association 2016
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