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Dynamic weight-bearing assessment of pain in knee osteoarthritis: a reliability and agreement study

Klokker, Louise, Christensen, Robin, Osborne, Richard, Ginnerup, Elisabeth, Waehrens, Eva E., Bliddal, Henning and Henriksen, Marius 2015, Dynamic weight-bearing assessment of pain in knee osteoarthritis: a reliability and agreement study, Quality of life research, vol. 24, no. 12, pp. 2985-2992, doi: 10.1007/s11136-015-1025-4.

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Title Dynamic weight-bearing assessment of pain in knee osteoarthritis: a reliability and agreement study
Author(s) Klokker, Louise
Christensen, Robin
Osborne, RichardORCID iD for Osborne, Richard orcid.org/0000-0002-9081-2699
Ginnerup, Elisabeth
Waehrens, Eva E.
Bliddal, Henning
Henriksen, Marius
Journal name Quality of life research
Volume number 24
Issue number 12
Start page 2985
End page 2992
Total pages 8
Publisher Springer
Place of publication New York, N.Y.
Publication date 2015-12
ISSN 0962-9343
1573-2649
Keyword(s) Knee osteoarthritis
Measurement
Pain
Physical function
Summary Purpose: To evaluate the reliability, agreement and smallest detectable change in a measurement instrument for pain and function in knee osteoarthritis; the Dynamic weight-bearing Assessment of Pain (DAP). Methods: The sample size was set to 20 persons, recruited from the outpatient osteoarthritis clinic at Frederiksberg Hospital, Copenhagen. Two physiotherapists tested all participants during two visits; at the first visit, one single DAP (including four scores) was conducted by rater one; at the second visit, DAP was conducted by both raters one and two in randomized order with concealed allocation. The time interval was approximately 1.5 h. Measurement error was estimated by standard error of measurement (SEM). The intra- and inter-rater reliability was estimated by Intra-class Correlation Coefficients for agreement based on a two-way ANOVA with random effects (single measures ICC 2.1). Smallest detectable change (SDC) and limits of agreement were calculated.Results: The pain score showed excellent reliability in terms of ICC (intra-rater 0.93, CI 0.83–0.97, inter-rater 0.91, CI 0.78–0.96), low SEM (intra-rater 0.70, inter-rater 0.86, on a scale from 0 to 10), and acceptable SDC for intra-rater test (1.95). The three knee bend scores all had ICC above 0.50, showing fair-to-good reliability. None of the knee bend scores showed acceptable SEM and SDC. Conclusions: The reproducibility of the DAP pain score meets the demands for use in clinical practice and research. The total knee bend could be useful for motivational purpose in clinical use. Testing of other psychometric properties of the DAP is pending.
Language eng
DOI 10.1007/s11136-015-1025-4
Field of Research 111702 Aged Health Care
Socio Economic Objective 920499 Public Health (excl. Specific Population Health) not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2015, Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30076749

Document type: Journal Article
Collection: School of Health and Social Development
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