The HLA-DRB1 shared epitope alleles are primarily a risk factor for anti-cyclic citrullinated peptide antibodies and are not an independent risk factor for development of rheumatoid arthritis.
Arthritis Rheum. 2006 Apr;54(4):1117-21. doi: 10.1002/art.21739.
Arthritis Rheum. 2006.
PMID: 16572446