Validation of the Japanese histologic classification 2013 of immunoglobulin A nephropathy for prediction of long-term prognosis in a Japanese single-center cohort

Background A new Japanese histologic classification (JHC) of immunoglobulin A nephropathy (IgAN) for prediction of long-term prognosis was proposed in 2013. The goal of this study was to validate the JHC system in a Japanese single-center cohort.