ACR score explained
ACR score is a scale to measure change in rheumatoid arthritis symptoms.[1] It is named after the American College of Rheumatology. The ACR score is more often used in clinical trials than in doctor patient-relationships, as it allows a common standard between researchers.
Different degrees of improvement are referred to as ACR20, ACR50, ACR70. ACR20 was initially proposed with ACR scoring, measuring a 20% improvement on a scale of 28 intervals. ACR50 and ACR70 were later proposed, corresponding to 50% and 70% improvements.[2]
The Rheumatoid Arthritis Severity Scale (RASS) is based on sections of the ACR scoring system.[3]
The 2010 ACR / EULAR Rheumatoid Arthritis Classification Criteria, which includes anti-CCP testing, has been developed to focus on early disease, and on features that are associated with persistent or erosive disease.[4]
Notes and References
- Felson . David T. . Anderson . Jennifer J. . Boers . Maarten . Bombardier . Claire . Furst . Daniel . Goldsmith . Charles . Katz . Linda M. . Lightfoot . Robert . Paulus . Harold . Strand . Vibeke . Tugwell . Peter . Weinblatt . Michael . James Williams . H. . Wolfe . Frederick . Kieszak . Stephanie . American college of rheumatology preliminary definition of improvement in rheumatoid arthritis . Arthritis & Rheumatism . Wiley . 38 . 6 . 1995 . 0004-3591 . 10.1002/art.1780380602 . 727–735. 7779114 .
- Web site: Rocha. Kathleen. ACR Score: Measuring Rheumatoid Arthritis. RheumatoidArthritis.org. 4 April 2017.
- Rheumatoid Arthritis Severity Scale: a brief, physician-completed scale not confounded by patient self-report of psychological functioning. . Rheumatology . 41 . 38–45 . Bardwell . 2002 . 1 . etal. 10.1093/rheumatology/41.1.38 . 11792878 . free .
- Aletaha D, Neogi T, Silman AJ . 2010 rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative . Ann. Rheum. Dis. . 69 . 9 . 1580–8 . September 2010 . 20699241 . 10.1136/ard.2010.138461 . etal. free .
