Table II.

Differences in the urinary IL-18 level (pg/ml) prior and subsequent to the procedure in the two groups.

		Post-procedure
Groups	Pre-procedure	2 h	6 h	12 h	24 h	48 h
Non-CIN	590.80±298.66	661.60±297.50	782.89±270.52a	834.82±321.81a	773.99±264.69a	664.59±232.73
CIN	646.62±243.59	883.79±181.09	998.47±302.43b,c	1172.13±323.68b,c	1031.56±369.31b,c	843.92±284.11d

^aP<0.01 and

^bP<0.05 compared with pre-procedure;

^cP<0.01 and

^dP<0.05 compared with the non-CIN group.

CIN, contrast-induced nephropathy; IL-18, interleukin-18.