IGHA1 and glomerular disorder: Serum Gd-IgA1/IgA in each non-IgA glomerular disease were as follows: MC (0.114, 0.027-0.235), FSGS (0.150, 0.103-0.287), MN (0.181, 0.107-0.245), and LN (0.188, 0.067-1.155).