IL6 and acute kidney injury: Even after adjusting the PS value, the D-dimer level was still positively correlated with the AKI stage and the serum creatinine, white blood cell, and interleukin-6 levels (r = 0.395, P = <0.001; r = 0.410, P = <0.001; r = 0.248, P = <0.001; and r = 0.306, P = <0.001, respectively).