Selected Metal Matrix Metalloproteinases and Tissue Inhibitors of Metalloproteinases as Potential Biomarkers for Tubulointerstitial Fibrosis in Children with Unilateral Hydronephrosis

Table 1

Characteristics of study and control groups.

Parameter	Study group median (range) and number of patients	Control group
Number of patients	45	21
Gender (male/female)	31/14	16/5
Age (years)	11.0 (2-17)	12.3 (3-17)
GFR (ml/min/1.73 m^2)	126.3 (97-162)	139 (102-145)
Number of patients in groups A/B/C	25/11/9	—
Number of patients with obstructive nephropathy	28/45 (62.2%)	—
Number of patients with proteinuria	10/45 (22.2%)	—
Protein/creatinine ratio (mg/mg)	0.24 (0.21-0.4)	0.09 (0-0.15)