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Kidney survival of patients reclassified in advanced CKD stages (3-5) by equations based on cystatin C. Comparison of kidney survival between the not reclassified group and reclassified group by eGFRCKD-EPI-CysC (a) and eGFRCKD-EPI-Cr-CysC (b). The kidney survival was significantly poorer by the log-rank test in the reclassified groups.
