Anti-hnRNP B1 (RA33) Autoantibodies Are Associated with the Clinical Phenotype in Russian Patients with Rheumatoid Arthritis and Systemic Sclerosis

Table 3

Anti-hnRNP B1 autoantibodies in 165 patients with rheumatoid arthritis depending on the presence of rheumatoid factor and anti-CCP antibodies.

	RF		Anti-CCP		RF/anti-CCP
	Positive; (𝑛=118)	Negative; (𝑛=47)	Positive; (𝑛=126)	Negative; (𝑛=39)	Positive; (𝑛=102)	Negative; (𝑛=23)
𝑛; >10 U/mL	17 (14.4%)	7 (14.9%)	17 (13.5%)	7 (17.9%)	14 (13.7%)	4 (17.4%)

CCP: citrullinated cyclic peptide; RF: rheumatoid factor.