GDF15 and Hypertension: However, plasma traumatic acid concentrations were positively correlated with the presence of hypertension (P = 0.034), glucose AC (P = 0.0035), creatinine (P = 0.0006), and GDF‐15 levels (P = 0.0376), but negatively correlated with the Modification of Diet in Renal Disease‐simplify‐glomerular filtration rate (P < 0.0001) (Table4).