Fig. 4
From: Incidence and pathological features of IgA nephropathy before and during the COVID-19 pandemic

Incidence of MN and IgAN before and during the COVID-19 pandemic. Inter-group comparisons were conducted using Pearson’s chi-square test, and pairwise comparisons were performed with the Bonferroni method. GD, glomerular diseases; IgAN, IgA nephropathy; MN, membranous nephropathy; *P < 0.05; **P < 0.01; NS, not significant.