Factor structure of the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) in a large sample of patients with schizophrenia or related disorders and comorbid obsessive-compulsive symptoms

PSYCHIATRY RESEARCH

卷:186

Article

Boyette, Lindy¹  Swets, Marije¹  Meijer, Carin¹  Wouters, Luuk¹ 

[1] Univ Amsterdam, Acad Med Ctr, Dept Psychiat, Amsterdam, Netherlands

关键词: YBOCS;    Factor analysis;    Reliability;    Psychosis;    Obsessive-compulsive disorder;   

DOI  :  10.1016/j.psychres.2010.07.048

来源: Elsevier

【 摘 要 】

In the past decade there has been an increasing interest in the levels of obsessive-compulsive symptoms (OCS) found in patients with schizophrenia or related disorders. The widely acknowledged gold standard measure of the severity of OCS is the content-free version of the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) (Goodman et al., 1989a,b). However, factor analytic research in patients with obsessive-compulsive disorder (OCD) provided varied results. So far no study has been conducted on the factor structure of the Y-BOCS in patients with schizophrenia. The present study addresses this issue. We administered the Y-BOCS in a sample of 217 patients with schizophrenia or related disorders and comorbid OCS who participated in a multicentre cohort study. We used principal component analysis (PCA) to explore the underlying factor structure. A two-factor solution consistent with the originally proposed scoring structure of the Y-BOCS provided the optimal fit. We also found some support for a three-factor solution consistent with earlier findings by Kim et al. and Moritz et al. (Kim et al., 1994: Moritz et al., 2002). The produced factors showed good reliability and strong correlations with the Y-BOCS Total score. However, the resistance to compulsion item failed to demonstrate adequate correlation to the Total score, a finding consistent with earlier findings in several studies with patients with OCD. (C) 2010 Elsevier Ireland Ltd. All rights reserved.

【 授权许可】

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