• Chad T Wetterneck, Tannah E Little, Gregory S Chasson, Angela H Smith, John M Hart, Melinda A Stanley, and Thröstur Björgvinsson.
• University of Houston-Clear Lake, United States; The Houston OCD Program, United States. wetterneck@uhcl.edu
• J Anxiety Disord. 2011 Dec 1; 25 (8): 1024-31.

AbstractPrevious 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.Published by Elsevier Ltd.

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