Journal of Rehabilitation Research & Development (JRRD)

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Volume 51 Number 5, 2014
   Pages 727 — 746

Abstract — Canadian Occupational Performance Measure performance scale: Validity and responsiveness in chronic pain

Mieke G. Nieuwenhuizen, MSc, PT;1* Sonja de Groot, PhD;1–2 Thomas W. J. Janssen, PhD;1,3 Lia C. C. van der Maas, MSc;1,4 Heleen Beckerman, PhD3,5

1Amsterdam Rehabilitation Research Center | Reade, Amsterdam, the Netherlands; 2University of Groningen, University Medical Center Groningen, Center for Human Movement Sciences, Groningen, the Netherlands; 3Faculty of Human Movement Sciences, MOVE Research Institute Amsterdam, VU University, Amsterdam, the Netherlands; 4School of Human Movement and Sports, University of Applied Sciences Windesheim, Zwolle, the Netherlands; 5Department of Rehabilitation Medicine, EMGO Institute for Health and Care Research, VU University Medical Center, Amsterdam, the Netherlands

Abstract — The construct validity and construct responsiveness of the performance scale of the Canadian Occupational Performance Measure (COPM) was measured in 87 newly admitted patients with chronic pain attending an outpatient rehabilitation clinic. At admission and after 12 wk, patients completed a COPM interview, the Pain Disability Index (PDI), and the RAND 36-Item Health Survey (RAND-36). We determined the construct validity of the COPM by correlations between the COPM performance scale (COPM-P), the PDI, and the RAND-36 at admission. Construct responsiveness was assessed by calculating the correlations between the change scores (n = 57). The COPM-P did not significantly correlate with the PDI (r = −0.260) or with any subscale of the RAND-36 (r = −0.007 to 0.248). Only a moderate correlation was found between change scores of the COPM-P and PDI (r = −0.380) and weak to moderate correlations were found between change scores of the COPM-P and the RAND-36 (r = −0.031 to 0.388), with the higher correlations for the physical functioning, social functioning, and role limitations (physical) subscales. In patients with chronic pain attending our rehabilitation program, the COPM-P measures something different than the RAND-36 or PDI. Therefore, construct validity of the COPM-P was not confirmed by our data. We were not able to find support for the COPM-P to detect changes in occupational performance.

Key words: Canadian Occupational Performance Measure, chronic pain, clinimetrics, disability, needs assessment, occupational therapy, outcome assessment, patient participation, patient satisfaction, patient-centered outcome, quality of life, rehabilitation, responsiveness, validity.


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This article and any supplementary material should be cited as follows:
Nieuwenhuizen MG, de Groot S, Janssen TW, van der Maas LC, Beckerman H. Canadian Occupational Performance Measure performance scale: Validity and responsiveness in chronic pain. J Rehabil Res Dev. 2014;51(5): 727–46.
http://dx.doi.org/10.1682/JRRD.2012.12.0221
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