Among the 20 variants from 15 loci analyzed, 2 variants were associated with susceptibility to IgA nephropathy, including rs12022418C in RGS1 (9.7 kb 5′ of RGS1) with p of 6.27 × 10−4 (OR 1.24, 95% CI 1.10–1.40) and rs7170151C in RASGRP1 (intronic) with p of 8.34 × 10−4 (OR 1.22, 95% CI 1.09–1.37) (Table 1). Here, RGS1 is linked to IgA glomerulonephritis.