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. Author manuscript; available in PMC: 2010 Oct 27.
Published in final edited form as: Ann Rheum Dis. 2008 Jan 30;67(11):1557–1561. doi: 10.1136/ard.2007.082339

Table 1.

Criteria sets investigated for classification of RA

1987 ACR
Criteria
1987 ACR
Criteria +
anti-CCP
CCP 7
Criteria
CCP 6
Criteria
1. morning stiffness > 1 hr*
2. arthritis ≥ 3 joints*
3. hand arthritis*
4. symmetric arthritis*
5. rheumatoid nodules
6. RF +
7. radiographic changes
8. anti-CCP +
# criteria required ≥4 out of 7 ≥4 out of 8 ≥3 out of 7 ≥3 out of 6
*

Arthritis symptoms ≥ 6 weeks