HLA-DRB1 and rheumatoid arthritis: Table 2 contains the ClassII HLA profiles of the RA patients studied, which show that HLA-DRB*04 (p<0.0016; OR = 1.89; 95% CI = 1.29–2.79), HLA-DRB1*10 and DQB1*0302 (p = 0.0027; OR = 1.90; 95% CI = 1.30–2.90) are associated with risk factors for RA.