Matrix metalloproteinase-2 as a superior biomarker for peritoneal deterioration in peritoneal dialysis

Table 4 Correlation between effluent biomarker levels and the results of peritoneal equilibration test

	D/P Cr	D/D0 glucose	MMP-2	IL-6	Hyaluronan	CA125
D/P Cr	ρ = 1	ρ = -0.86	ρ = 0.74	ρ = 0.46	ρ = 0.27	ρ = 0.13
		P < 0.001	P < 0.001	P < 0.001	P < 0.001	P = 0.051
D/D0 Glucose		ρ = 1	ρ = -0.65	ρ = -0.28	ρ = -0.22	ρ = -0.094
			P < 0.001	P < 0.001	P < 0.005	P = 0.19
MMP-2			ρ = 1	ρ = 0.54	ρ = 0.40	ρ = 0.1
				P < 0.001	P < 0.001	P < 0.05
IL-6				ρ = 1	ρ = 0.45	ρ = 0.26
					P < 0.001	P < 0.001
Hyaluronan					ρ = 1	ρ = 0.18
						P < 0.01
CA125						ρ = 1

ρ values were calculated by Spearman’s correlation coefficient. Cr: Creatinine; MMP-2: Matrix metalloproteinase-2; IL-6: Interleukin-6; CA125: Cancer antigen 125.