Distribution of nephrologists and regional variation in the clinical severity of IgA nephropathy at biopsy diagnosis in Japan: a cross-sectional study.

BMJ Open · 2018 · PMC6224759 · PMID 30385449

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a clear trendno p-value reported

The number of nephrologists per regional population showed a clear trend: the fewer the nephrologists, the more severe were the clinical features at the biopsy diagnosis, including renal function, the UPE rate, haematuria and the renal prognosis risk distribution ( table 3 ).

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