Table 1.

Characteristics and laboratory data of the study groups.

Parameter	CKD group	Healthy group	P value
n	121	50
Age (years)	59.42 ± 10.95	55.16 ± 9.32	0.194
Sex (M/F)	68/53	27/23	0.792
Scr (umol/L)	719.60 ± 353.18	79.29 ± 15.55	<0.01
BUN (mmol/L)	30.81 ± 19.28	5.17 ± 1.45	<0.01
VEGF (pg/ml)	1141.02 ± 1173.51	107.67 ± 32.48	<0.01

CKD: chronic kidney disease; VEGF: vascular endothelial growth factor; Scr: serum creatinine; BUN: blood urea nitrogen; M: male; F: female.