CRP and glomerular disorder: Log-transformed GDF-15 was associated with lower eGFR (ß = −0.02, P < 0.001), lower serum albumin (ß = −0.02, P < 0.001), higher C-reactive protein (ß = 0.05, P < 0.001) and the diagnoses (reference: CAKUT) glomerulopathies (ß = 0.18, P 0.004), tubulointerstitial disorders (ß = 0.28, P < 0.001), and others (ß = 0.31, P < 0.001) but not with age, sex, body mass index SDS, and uPCR.