Absolute renal biopsy diagnosis frequencies of the most common glomerular disease subtypes according to patient age category. Absolute renal biopsy diagnosis frequencies of the most common glomerular disease subtypes according to patient age category. (A) All subtypes: number of patients with each of the eight most common glomerular disease subtypes shown. (B) Nephrotic subtypes: number of patients with each of the eight most common glomerular disease subtypes that often present with nephrotic syndrome shown (Fabry disease and collagenofibrotic glomerulopathy not shown). (C) Nephritic subtypes: number of patients with each of the eight glomerular disease subtypes that often present clinically with nephritic features shown. DDD, dense deposit disease; GBM, glomerular basement membrane; GS, glomerulosclerosis; IgAN, IgA nephropathy; MIDD, monoclonal immune deposition disease; MPGN, membranoproliferative GN; TBM, thin basement membrane. Michelle M. O’Shaughnessy et al. CJASN 2017;12:614-623 ©2017 by American Society of Nephrology