ALB and diabetic kidney disease: In the meantime, urinary IL-18 correlates with hemoglobin (r = −0.218, p = 0.026), albumin (r = −0.466, p < 0.001), eGFR (r = −0.393, p = 0.001), and serum IL-18 (r = 0.448, p < 0.001) in diabetic subjects with DKD.