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Fig. 2 | Arthritis Research & Therapy

Fig. 2

From: Low levels of antibodies against common viruses associate with anti-citrullinated protein antibody-positive rheumatoid arthritis; implications for disease aetiology

Fig. 2

Anti-viral antibody levels in patients with rheumatoid arthritis (RA) from the Swedish Epidemiological Investigation of Rheumatoid Arthritis (EIRA) study and in controls, in relation to HLA-DRB1 shared epitope (SE) alleles. Anti-Epstein-Barr virus (EBV) IgG (a) and anti-B19 IgG (b) levels were compared between SE-positive and SE-negative: controls, patients with RA, anti-citrullinated protein antibody (ACPA)-positive patients with RA and ACPA-negative patients with RA, and were compared in different subsets of patients with RA and in controls in the presence or absence of the SE. The red lines indicate median antibody levels. P values <0.05 were considered statistically significant

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