IL18 and diabetic kidney disease: Interestingly, the urinary levels of IL-18 and cf-PWV were significantly elevated in subjects with DKD compared with those without DKD [UIL-18 193.24 (102.78, 257.81) vs. 128.28 (82.67, 204.14) pg/mg UCr, p = 0.005; cf-PWV 9.20 (7.50, 10.25) vs. 7.90 (6.80, 9.20), p < 0.001], whereas the serum IL-18 levels and cr-PWV were not different in the two groups.