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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Arthritis Rheum. 2012 Aug;64(8):2677–2686. doi: 10.1002/art.34473

Table 4.

Performance of the proposed classification, compared to the current ACR criteria on the derivation sample, based on 702 cases.

Rule “Sensitivity”1 “Specificity”2 Misclassified Cases (number)
1997 ACR Criteria3 267/310 (86%) 365/392 (93%) 70
SLICC Criteria 292/310 (94%) 361/392 (92%) 49
1

“Sensitivity”: Of those that were 80% consensus SLE, proportion (%) correctly classified by the criteria as SLE.

2

“Specificity”: Of those that were 80% consensus not SLE, proportion (%) correctly classified by the criteria as not SLE.

3

ACR criteria are based on satisfying 4 of 11 criteria.