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Abstract Background Previously, several studies have indicated that pediatric IgA nephropathy (IgAN) might be different from adult IgAN, and treatment strategies might be also different between pediatric IgAN and adult IgAN. Methods We analyzed two prospective cohorts established by pediatric and adult nephrologists, respectively. A comprehensive analysis was performed investigating the difference in clinical and pathological characteristics, treatment, and prognosis between children and adults with IgAN. Results A total of 1015 children and 1911 adults with IgAN were eligible for analysis. More frequent gross hematuria (88% vs. 20%, p 1 g/d, children treated with steroids were 1.87 (95% CI 1.16–3.02, p = 0.01) times more likely to reach complete remission of proteinuria compared with adults treated with steroids. Conclusions Children present significantly differently from adults with IgAN in clinical and pathological manifestations and disease progression. Steroid response might be better in children. Graphical Abstract
Su et al. (Fri,) studied this question.