. 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