Table 1. Serum creatinine and creatinine clearance levels of each group on the 1st day and 5th day (n=7).

Parameters	Serum creatinine (mg/dl) #			Creatinine clearance (ml/min)
Days	1st	5th	P	1st	5th	P
Control	0.40 (0.40–0.60)	0.40 (0.40–0.50)	NS	1.32 ± 0.38	1.16 ± 0.34	NS
CM	0.50 (0.40–0.50)	0.60 (0.50–0.80)	*	1.20 ± 0.14	0.85 ± 0.33	*
Carnitine	0.50 (0.50–0.70)	0.50 (0.40–0.50)	NS	1.15 ± 0.37	0.99 ± 0.36	NS
CM+carnitine	0.50 (0.50–0.60)	0.40 (0.40–0.40)	*	0.87 ± 0.22	1.07 ± 0.20	NS

* P<0.05; NS, not significant; CM, contrast medium; CM + carnitine, contrast medium + carnitine treatment. # Serum creatinine parameters are expressed as medians (interquartile range).