BANK1 and rheumatoid arthritis: Concordant with results observed in the European Caucasian population, for the combined set, the association of the G risk allele of BANK1 rs3733197 and RA was restricted to subjects carrying the BLK rs13277113 GG genotype (ORG|GG(meta) = 1.21 [1.04–1.41], P = 0.015; Table 2, Figure 2).