From: Anti-citrullinated fibronectin antibodies in rheumatoid arthritis are associated with human leukocyte antigen-DRB1shared epitope alleles
Patient group
n
anti-FN-Cit1035,1036 positive
sensitivity (%)
specificity (%)
established RA a
82
41
50.0
early RA a
278
124
44.6
Controls
186
3
1.6
98.4
   non-RA
154
1.9
98.1
   Healthy
32
0
100