GDF15 and kidney disorder: Similarly, plasma GDF‐15 concentrations were positively correlated with the presence of hypertension (P = 0.0017), glucose AC (P = 0.0002), and creatinine levels (P = 0.0056), but negatively correlated with haemoglobin (P = 0.0054), albumin (P = 0.0022), and the Modification of Diet in Renal Disease‐simplify‐glomerular filtration rate (P < 0.0001) (Table4).