What is the 2011 ACR/EULAR definition of remission in rheumatoid arthritis (RA)?

Updated: Feb 07, 2020
  • Author: Howard R Smith, MD; Chief Editor: Herbert S Diamond, MD  more...
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In 2011, the ACR and the EULAR published a Boolean-based definition of remission in RA, according to which a patient must satisfy all of the following to be considered in remission [3] :

  • Tender joint count of 1 or less (if joints are tender and swollen, a 28-joint count may miss actively involved joints, particularly those in the feet and ankles; include the feet and ankles when assessing for remission)

  • Swollen joint count of 1 or less (as noted above, include the feet and ankles when assessing for remission)

  • CRP level of 1 mg/dL or lower

  • Patient global assessment of 1 or less (on a 0-10 scale); suggestions are available for appropriate formatting and wording for global assessment questions to evaluate remission: http://www.rheumatology.org/practice/clinical/classification/ra/ra_remission_2011.asp

In addition, the ACR/EULAR index-based definition considers RA patients to be in remission if they have an SDAI score of 3.3 or lower. The SDAI score is defined as the sum of the tender joint count (28 joints), swollen joint count (28 joints), patient global assessment (0-10 scale), and CRP measurement (mg/dL). [3]

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