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Spontaneous ambulatory activity as a quantifiable outcome measure for rheumatoid arthritis

Lookup NU author(s): Dr David Walker

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Abstract

Objective. To validate the objective monitoring of ambulatory activity as an outcome measure for rheumatoid arthritis (RA). Methods. We have compared ambulatory activity to a range of currently favoured outcome measures, ranging from subjective opinions to X-ray damage, in a population of 93 RA sufferers. Results. Correlations were stronger with measures of joint damage and disability, and less strong with measures of disease activity. Sensitivity to change was good. Three different interventions were compared for the quantity of the response, and the results agree with clinical experience, with steroid injection of the knee and use of non-steroidal antiinflammatory drugs (NSAIDs) having a similar response and the provision of surgical shoes producing a more modest increase in ambulation. Conclusion. The measurement of ambulatory activity has validity for RA assessment. It provides different but related data to the currently used measures. It is objective, relevant, quantifiable and of unlimited scale. It could he used to quantify interventions aimed at increasing ambulation, in carefully constructed studies.


Publication metadata

Author(s): Walker DJ; Kidd E; Heslop PS; Chandler C

Publication type: Article

Publication status: Published

Journal: Rheumatology

Year: 1999

Volume: 38

Issue: 12

Pages: 1234-1238

Print publication date: 01/12/1999

ISSN (print): 0080-2727

ISSN (electronic): 1662-3959

Publisher: S. Karger AG

URL: http://dx.doi.org.10.1093/rheumatology/38.12.1234

DOI: 10.1093/rheumatology/38.12.1234


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