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Article
Psychometric Properties of the Centrality of Pain Scale
Regional Research Institute for Human Services Publications
  • Benjamin J. Morasco, Veterans Affairs Medical Center, Portland
  • Dennis C. Turk, University of Washington
  • Christina Nicolaidis, Portland State University
Document Type
Post-Print
Publication Date
12-1-2015
Subjects
  • Pain -- Treatment,
  • Biological psychiatry,
  • Pain -- Psychological aspects,
  • Chronic pain
Disciplines
Abstract

The Centrality of Pain Scale (COPS) is a recently developed patient-centered, 10-item self-report measure designed to assess how central, or dominating, in their lives individuals with chronic pain perceive pain to be. The COPS underwent initial development and validation previously; preliminary results suggested that the measure had excellent psychometric properties and that COPS scores were associated with important clinical factors. The purpose of the present study was to examine the psychometric properties of the COPS in a sample of individuals with mixed chronic pain diagnoses (N = 178) being treated at a U.S. Veterans Affairs Medical Center. Principal components analysis of COPS items revealed a single factor, and all items loaded highly. The COPS had high internal consistency (Cronbach's alpha = .902) and was significantly correlated with other measures of pain, mental health, psychological factors associated with pain, and chronic pain coping styles, suggesting convergent and divergent validity. Hierarchical linear regression analyses indicated that COPS score was independently associated with both pain severity and interference. Future research should evaluate the generalizability of the COPS in different samples, its responsiveness to treatment, and the extent to which pain centrality may be a focus of nonpharmacologic interventions for chronic pain.

Description

This is a PDF file of an unedited manuscript that has been accepted for publication. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. The definitive version was published online: http://dx.doi.org/10.1016/j.jpain.2015.04.005

© 2015. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/

DOI
10.1016/j.jpain.2015.04.005
Persistent Identifier
http://archives.pdx.edu/ds/psu/16427
Citation Information
Morasco BJ, Turk DC, Nicolaidis C, Psychometric Properties of the Centrality of Pain Scale, Journal of Pain (2015).