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. Author manuscript; available in PMC: 2011 Jun 23.
Published in final edited form as: Arthritis Care Res (Hoboken). 2010 Aug;62(8):1120–1127. doi: 10.1002/acr.20184

Table 4.

Characteristics of patients classified as RA by the complete classification algorithm from our EMR compared to published data from CORRONA.

Characteristics EMR cohort, n=3,585 CORRONA, n=7,971
Mean age (SD) 57.5 (17.5) 58.9 (13.4)
Female (%) 79.9 74.5
Anti-CCP positive (%) 63 N/A
RF positive (%) 74.4 72.1
Erosions (%) 59.2 59.7
MTX (%) 59.5 52.8
Anti-TNF (%) 32.6 22.6