Level of agreement of the 1987 ACR and 2010 ACR/EULAR rheumatoid arthritis classification criteria: an analysis based on ESPOIR cohort data
- 28 October 2011
- journal article
- research article
- Published by BMJ in Annals Of The Rheumatic Diseases
- Vol. 71 (3), 386-389
- https://doi.org/10.1136/annrheumdis-2011-200259
Abstract
Background In 2010, new classification criteria for rheumatoid arthritis (RA) were developed. Objective To assess agreement between 1987 American College of Rheumatology (ACR) and 2010 ACR/European League Against Rheumatism (EULAR) criteria and the potential source of discordance, based on ESPOIR cohort data. Methods 813 early arthritis patients were included in ESPOIR between 2002 and 2005. Between-criteria agreement was based on the κ coefficient. Discordance was explored by logistic regression. Results Data for 811 patients were available, with their main characteristics as follows: women 77%, swollen joint count 7.2, tender joint count 8.4, disease activity score in 28 joints 5.2, rheumatoid factor 46%, anticitrullinated protein antibody (ACPA) 39%, structural damage 22%. At baseline, 579 (71.4%) patients met the 1987 ACR criteria and 641 (79.0%) the 2010 criteria. Agreement at baseline was discordant for 168 patients: 115 satisfied the 2010 criteria and 53 the 1987 criteria. Concordance between the two sets was fair, with a κ coefficient of 0.45 and 0.42 at baseline and year 2, respectively. The main sources of discordance were the number and symmetry of joint involvement, as well as ACPA status. Conclusion 2010 ACR/EULAR criteria identified more patients with RA than did 1987 criteria. The 2010 criteria failed to identify RA patients with symmetrical seronegative arthritis and limited joint involvement.This publication has 17 references indexed in Scilit:
- Validation of the 2010 ACR/EULAR classification criteria for rheumatoid arthritis: slight improvement over the 1987 ACR criteriaAnnals Of The Rheumatic Diseases, 2011
- Favorable effect of very early disease-modifying antirheumatic drug treatment on radiographic progression in early inflammatory arthritis: Data from the Étude et Suivi des Polyarthrites IndifféRenciées récentes (Study and Followup of Early UndifferentiateArthritis & Rheumatism, 2011
- Performance of the 2010 ACR/EULAR criteria for rheumatoid arthritis: comparison with 1987 ACR criteria in a very early synovitis cohortAnnals Of The Rheumatic Diseases, 2011
- The 2010 American College of Rheumatology/European League Against Rheumatism classification criteria for rheumatoid arthritis: Phase 2 methodological reportArthritis & Rheumatism, 2010
- Treating rheumatoid arthritis to target: recommendations of an international task forceAnnals Of The Rheumatic Diseases, 2010
- Diagnosing early or rheumatoid arthritis. Which is better: expert opinion or evidence?The Journal of Rheumatology, 2009
- American College of Rheumatology 2008 recommendations for the use of nonbiologic and biologic disease‐modifying antirheumatic drugs in rheumatoid arthritisArthritis Care & Research, 2008
- Anti-cyclic citrullinated peptide revised criteria for the classification of rheumatoid arthritisAnnals Of The Rheumatic Diseases, 2008
- Efficacy of methotrexate treatment in patients with probable rheumatoid arthritis: A double‐blind, randomized, placebo‐controlled trialArthritis & Rheumatism, 2007
- The american rheumatism association 1987 revised criteria for the classification of rheumatoid arthritisArthritis & Rheumatism, 1988