Further support for five dimensions of obsessive-compulsive symptoms
- Publication Type:
- Journal Article
- Citation:
- Journal of Nervous and Mental Disease, 2013, 201 (6), pp. 452 - 459
- Issue Date:
- 2013-01-01
Closed Access
Filename | Description | Size | |||
---|---|---|---|---|---|
JNMD - Five dimensions of OCD paper.pdf | Published Version | 384.32 kB |
Copyright Clearance Process
- Recently Added
- In Progress
- Closed Access
This item is closed access and not available.
Attempts to explain the phenotypic heterogeneity of obsessive-compulsive disorder (OCD) have resulted in three to six OCD symptom dimensions. This study aimed to clarify the nature of these symptom dimensions using a self-report instrument (Vancouver Obsessional Compulsive Inventory [VOCI]) in addition to the clinician-rated Yale-Brown Obsessive Compulsive Scale-Symptom Checklist (YBOCS-SC). Participants (N = 154) were recruited to a study designed to specifically assess OCD symptom dimensions. Symptoms assessed via the YBOCS-SC and the VOCI were subjected to principal components analysis (PCA). Linear regression was used to assess therelationship between the YBOCS-SC-derived symptom dimensions and the VOCI symptom subscales. PCA of the YBOCS-SC and the VOCI revealed five OCD symptom dimensions that explained 68% and 60% of the variance, respectively. The results also supported a distinction between the doubt/checking symptom dimension and the unacceptable/taboo thoughts dimension that includes mental rituals. The YBOCS-SC-derived symptom components were predicted by their respective VOCI symptom subscale scores. Copyright © 2013 by Lippincott Williams & Wilkins.
Please use this identifier to cite or link to this item: