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Fig. 2 | Arthritis Research & Therapy

Fig. 2

From: An investigation of the added value of an ACPA multiplex assay in an early rheumatoid arthritis setting

Fig. 2

Multiplex positivity correlates with anti-CCP-2 levels. a Percentage of anti-CCP-2-positive RA patients (n = 285) in the EAC that are positive or negative in the multiplex array. b Median anti-CCP-2 levels plotted against the number of recognized peptides. A linear regression was used to determine the degree of correlation. c Anti-CCP-2 levels in multiplex-negative (n = 11) and -positive (n = 274) RA patients. Each dot represents an EAC patient. Median anti-CCP-2 levels were compared by using the Mann-Whitney test. CCP cyclic citrullinated peptide, EAC Leiden Early Arthritis Clinic, RA rheumatoid arthritis

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