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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 5.

Performance characteristics for sets of criteria stratified by duration of arthritis symptoms with possible/probable subjects included with definite RA subjects

Criteria Sensitivity (%) Specificity (%)
All subjects, n=292
1987 ACR Criteria 51 83
Anti-CCP Revised 6 Criteria 74 72

Subjects with arthritis symptoms ≤ 6 months, n=79
1987 ACR Criteria 25 79
Anti-CCP Revised 6 Criteria 63 65

Subjects with arthritis symptoms > 6 months, n=213
1987 ACR Criteria 58 85
Anti-CCP Revised 6 Criteria 77 75