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 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]
References
^ abFelson, 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 (1995). "American college of rheumatology preliminary definition of improvement in rheumatoid arthritis". Arthritis & Rheumatism. 38 (6). Wiley: 727–735. doi:10.1002/art.1780380602. ISSN0004-3591. PMID7779114.
