Table 2.

The median values and interquartile ranges of the ratios of examined parameters in children on peritoneal dialysis (APD), on hemodialysis (HD) and in the control group

Parameter median values (interquartile ranges)	Control group N = 24	APD N = 22	HD N = 17
MMP-9/TIMP-1 ratio	1.43a (1.19–1.65)	4.0b (3.81–4.58)	1.76c (1.68–1.81)
MMP-7/TIMP-1 ratio	0.030a (0.026–0.037)	0.026b (0.025–0.030)	0.011c (0.010–0.012)
MMP-9/NGAL ratio	2.71a (2.61–2.96)	8.08b (7.66–8.36)	8.46c (8.23–8.94)

Mann–Whiney U test:

^a p < 0.01 APD vs. controls

^b p < 0.01 APD vs. HD

^c p < 0.01 HD vs. controls