Evaluation of Anti-Mutated Citrullinated Vimentin Antibodies, Anti-Cyclic Citrullinated Peptide Antibodies and Rheumatoid Factor in Omani Patients with Rheumatoid Arthritis

Table 3

Distribution of the rheumatoid arthritis patients according to the presence of anti-MCV, anti-CCP, and IgM-RF.

	Anti-CCP positive (>5 RU/mL)	Anti-CCP negative (≤5 RU/mL)	𝑃 value
	𝑛=49 (%)	𝑛=31 (%)
Anti-MCV
Positive (>20 U/mL)	45 (92)	13 (42)	<0.0001
Negative (≤20 U/mL)	4 (8)	18 (58)
RF+ (>30 U/mL)
Anti-MCV+	37 (75.5)	6 (19)	0.55
Anti-MCV−	3 (6)	1 (3)
RF− (≤30 U/mL)
Anti-MCV+	6 (12)	7 (22.5)	0.05
Anti-MCV−	3 (6)	17 (55)

Anti-CCP: anti-cyclic citrullinated peptide, anti-MCV: anti-mutated vimentin citrullinated antibody, and RF: rheumatoid factor.