Validation Study of Oxford Classification of IgA Nephropathy

Abstract

The prognostic significance of Ex was evident in our cohort. It seems that Ex did not emerge from the Oxford classification as a prognosticator because of exclusion of severe cases (eGFR <30 ml/min per 1.73 m(2)). We suggest that extracapillary proliferation be included in the next version of the Oxford classification of IgAN to widen the scope of the classification.