Validation of the Chronic Pain Acceptance Questionnaire-8 in an Australian pain clinic sample

Baranoff, John, Hanrahan, Stephanie J., Kapur, Dilip and Connor, Jason P. (2012) Validation of the Chronic Pain Acceptance Questionnaire-8 in an Australian pain clinic sample. International Journal of Behavioral Medicine, 21 1: 177-185. doi:10.1007/s12529-012-9278-6

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Author Baranoff, John
Hanrahan, Stephanie J.
Kapur, Dilip
Connor, Jason P.
Title Validation of the Chronic Pain Acceptance Questionnaire-8 in an Australian pain clinic sample
Journal name International Journal of Behavioral Medicine   Check publisher's open access policy
ISSN 1070-5503
Publication date 2012
Year available 2012
Sub-type Article (original research)
DOI 10.1007/s12529-012-9278-6
Open Access Status File (Author Post-print)
Volume 21
Issue 1
Start page 177
End page 185
Total pages 9
Place of publication New York, NY, United States
Publisher Springer
Collection year 2013
Language eng
Formatted abstract
Background: Recently, an 8-item short-form version of the Chronic Pain Acceptance Questionnaire (CPAQ-8) was developed predominantly in an internet sample. Further investigation of the factor structure in a multidisciplinary pain clinic sample is required. Investigation of the concurrent validity of the CPAQ-8 after accounting for the effects of variables commonly measured in the pain clinic setting is also necessary.

Purpose: This study examines the factor structure and concurrent validity of the CPAQ-8 in a sample of treatment-seeking patients who attended a multidisciplinary pain clinic.

Methods: Participants were 334 patients who attended an Australian multidisciplinary pain service. Participants completed the CPAQ, a demographic questionnaire, and measures of patient adjustment and functioning.

Confirmatory factor analysis identified a two-factor 8-item model consisting of Activity Engagement and Pain Willingness factors (SRMR = 0.039, RMSEA = 0.063, CFI = 0.973, TLI = 0.960) was superior to both the CPAQ and CPAQ with an item removed. The CPAQ and CPAQ-8 total scores were highly correlated (r = 0.93). After accounting for pain intensity, the CPAQ-8 was a significant predictor of depression, anxiety, stress, and disability. The subscales of the CPAQ-8 were both unique contributors to depression and disability in regression analyses, after accounting for pain intensity and kinesiophobia, and after accounting for pain intensity and catastrophizing.

Conclusions: The CPAQ-8 has a sound factor structure and similar psychometric properties to the CPAQ; it may have clinical utility as a measure of pain acceptance in treatment-seeking, chronic pain patients.
Keyword Acceptance
Chronic pain
Psychometric properties
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online: 22 November 2012.

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Created: Tue, 08 Jan 2013, 13:52:54 EST by Ms Dayna Smith on behalf of Centre for Youth Substance Abuse