Measurement of global functional performance in patients with rheumatoid arthritis using rheumatology function tests

Arthritis Research & Therapy
Agustín EscalanteInmaculada Del Rincón

Abstract

Outcome assessment in patients with rheumatoid arthritis (RA) includes measurement of physical function. We derived a scale to quantify global physical function in RA, using three performance-based rheumatology function tests (RFTs). We measured grip strength, walking velocity, and shirt button speed in consecutive RA patients attending scheduled appointments at six rheumatology clinics, repeating these measurements after a median interval of 1 year. We extracted the underlying latent variable using principal component factor analysis. We used the Bayesian information criterion to assess the global physical function scale's cross-sectional fit to criterion standards. The criteria were joint tenderness, swelling, and deformity, pain, physical disability, current work status, and vital status at 6 years after study enrolment. We computed Guyatt's responsiveness statistic for improvement according to the American College of Rheumatology (ACR) definition. Baseline functional performance data were available for 777 patients, and follow-up data were available for 681. Mean +/- standard deviation for each RFT at baseline were: grip strength, 14 +/- 10 kg; walking velocity, 194 +/- 82 ft/min; and shirt button speed, 7.1 +/- 3.8 buttons...Continue Reading

References

Feb 1, 1992·Baillière's Clinical Rheumatology·T Pincus, L F Callahan
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Apr 5, 2002·Arthritis and Rheumatism·Carlos H OrcesAgustín Escalante
Jul 13, 2002·Arthritis and Rheumatism·Agustín Escalante, Inmaculada Del Rincón
Apr 11, 2003·Arthritis and Rheumatism·Inmaculada Del RincónAgustín Escalante
Jun 10, 2004·Arthritis and Rheumatism·Agustín EscalanteJohn E Cornell
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Dec 1, 1961·Annals of the Rheumatic Diseases·UNKNOWN RESEARCH SUB-COMMITTEE OF THE EMPIRE RHEUMATISM COUNCIL

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Citations

Mar 30, 2007·Annals of the Rheumatic Diseases·Sigrid OdegårdTill Uhlig
Mar 17, 2005·BMC Musculoskeletal Disorders·Agustín EscalanteInmaculada del Rincón
Jun 1, 2014·Revista brasileira de reumatologia·Ana Paula ShiratoriMonique da Silva Gevaerd
Apr 8, 2018·Rheumatology International·Susie C HigginsRodney Hughes
May 10, 2006·International Journal of Obesity : Journal of the International Association for the Study of Obesity·T H SachA J Avery
Jan 25, 2019·Journal of Sport Rehabilitation·Mohamed AbdelmegeedHasan M Syed
Aug 22, 2020·Autoimmunity·Cristhine PieczarkaIara Jose de Messias-Reason
Jul 20, 2014·Annals of the Rheumatic Diseases·Kai YuanAnlong Xu
Dec 13, 2006·The American Journal of Clinical Nutrition·Samuele M MarcoraPeter J Maddison
Jul 15, 2015·International Journal of Rheumatic Diseases·Rohini HandaCanna J Ghia

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