2010 ACR/EULAR rheumatoid arthritis classification criteria
Rheumatology
Also known as: ACR/EULAR-Klassifikationskriterien 2010 für rheumatoide Arthritis · 2010 ACR/EULAR romatoid artrit sınıflama kriterleri · ACR/EULAR 2010 classification criteria for rheumatoid arthritis
What it is for
Classification (not diagnostic) criteria of the American College of Rheumatology (ACR) and the European League Against Rheumatism (EULAR) for rheumatoid arthritis (RA). They apply to patients with at least one joint with definite clinical synovitis (swelling) that is not better explained by another disease. Scores from four domains are added (maximum 10); a total of ≥6 classifies definite RA.
Classification
| Category | Description |
|---|---|
| A. Joint involvement | 1 large joint: 0; 2–10 large joints: 1; 1–3 small joints (with or without large joints): 2; 4–10 small joints (with or without large joints): 3; more than 10 joints, at least one of them small: 5. |
| B. Serology | negative rheumatoid factor (RF) and negative anti-citrullinated protein antibodies (ACPA): 0; low-positive RF or low-positive ACPA: 2; high-positive RF or high-positive ACPA (more than 3 times the upper limit of normal): 3. At least one test result is needed. |
| C. Acute-phase reactants | normal C-reactive protein (CRP) and normal erythrocyte sedimentation rate (ESR): 0; abnormal CRP or abnormal ESR: 1. At least one test result is needed. |
| D. Symptom duration | less than 6 weeks: 0; 6 weeks or longer: 1. |
| Interpretation | ≥6/10 points: classified as definite RA. Only the highest category met within each domain counts. |
Source
2010 rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative
ACR/EULAR · Ann Rheum Dis 2010;69:1580–1588 (Aletaha D et al.); also Arthritis Rheum 2010;62:2569–2581
PMID: 20699241
- Edition
- ACR/EULAR 2010 (replaced the ACR 1987 criteria)
- Checked on
Summary of the published classification in our own words. Not a substitute for the original publication.
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