There was no evidence that HLA-DRB1 SE, PTPN22, OLIG3/TNFAIP3, STAT4 or TRAF1/C5 were significantly associated with prevalent erosions in logistic regression analyses of the total RA cohort, after adjustment for symptom duration (Table 3). This evidence concerns the gene TNFAIP3 and rheumatoid arthritis.