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. 2013 Mar 11;172(1):44–53. doi: 10.1111/cei.12033

Figure 1.

Figure 1

(a) Antibody levels in patients with rheumatoid arthritis (RA). Anti-cyclic citrullinated glucose-6-phosphate isomerase peptide-1–9 (CCG-1–9) antibodies and anti-citrullinated α-enolase peptide (CEP-1) antibodies were measured in the sera of patients with RA (n = 208) by enzyme-linked immunosorbent assay (ELISA). (b) Antibody levels in healthy control subjects (HS). Anti-CCG-1–9 and anti-CEP-1 antibodies were measured in sera of HS (n = 174) by ELISA. Data represent the optical density values at 405 nm (OD 405). Each datum point represents an individual subject. Bar indicates the mean value. *P < 0·01; **P < 0·001.