From: Anti-citrullinated fibronectin antibodies in rheumatoid arthritis are associated with human leukocyte antigen-DRB1shared epitope alleles
Anti-cit FN neg. (%)d
Anti-cit FN pos. (%)d
OR (95% CI)
Smoking a
-
63 (46.7)
40 (38.1)
1.42 (0.85 to 2.39)
+
72 (53.3)
65 (61.9)
HLA SE alleles b
39 (26.5)
57 (14.6)
2.11 (1.13 to 3.92)
108 (73.5)
213 (85.4)