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Psychometric properties of the 8-item Chronic Pain Acceptance Questionnaire (CPAQ-8) in a Swedish Chronic pain cohort
Sahlgrenska Academy, Gothenburg University, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Nursing Science. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Anaesthetics, Operations and Specialty Surgery Center, Pain and Rehabilitation Center. Linnaeus University, Kalmar, Sweden.
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Anaesthetics, Operations and Specialty Surgery Center, Pain and Rehabilitation Center.
Linköping University, Department of Medical and Health Sciences, Division of Community Medicine. Linköping University, Faculty of Health Sciences. County Hospital Ryhov, Jönköping, Sweden.ORCID iD: 0000-0002-4385-428X
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2014 (English)In: Journal of Rehabilitation Medicine, ISSN 1650-1977, E-ISSN 1651-2081, Vol. 46, no 1, 73-80 p.Article in journal (Refereed) Published
Abstract [en]

Background: Acceptance and Commitment Therapy for chronic pain has good empirical support. Pain acceptance is most often assessed with the Chronic Pain Acceptance Questionnaire (CPAQ). Recently a shorter 8-item version, the CPAQ-8, was developed. Objectives: To further validate the CPAQ-8 in a Swedish context and to test its sensitivity to treatment effects, an as-yet unknown property of the instrument. Methods: A total of 891 patients completed the CPAQ, along with scales for anxiety and depression (Hospital Anxiety and Depression scale), kinesiophobia (Tampa Scale for Kinesiophobia) and quality of life (Short Form-36). Confirmatory factor analyses were performed to examine the factor structure. Convergent validity was tested with Pearson's correlations. Changes over time were evaluated with paired t-test. Results: The confirmatory factor analyses showed that the CPAQ 2-factor model had a better fit compared with the 1-factor model, both for the 8- and 20-item versions. All CPAQ-8 scales demonstrated good internal consistency (alpha ≥ 0.80). They also correlated significantly with related constructs, supporting convergent validity. The CPAQ-8 explained a large share of the total variance in CPAQ-20 and was also able to track rehabilitation changes (large effect size, d = 0.89). Conclusion: CPAQ-8 demonstrated good psychometric properties and sensitivity to rehabilitation changes. Further research that considers other cultural contexts may lead enhance the applications of this instrument.

Place, publisher, year, edition, pages
Stiftelsen Rehabiliteringsinformation , 2014. Vol. 46, no 1, 73-80 p.
Keyword [en]
thermal pain thresholds, pressure pain thresholds, thermal detection thresholds, catastrophizing, anxiety, biopsychosocial, WAD
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Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-103736DOI: 10.2340/16501977-1227ISI: 000330421800012PubMedID: 24036958OAI: oai:DiVA.org:liu-103736DiVA: diva2:690738
Available from: 2014-01-24 Created: 2014-01-24 Last updated: 2017-12-06Bibliographically approved

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Årestedt, KristoferGerdle, BjörnBörsbo, Björn

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