Table 4.

Correlations Between Serial Changes in Renal Tubular Injury Biomarkers and Cystatin C

	24-h ΔCystatin C, mg/L	P Value	48-h ΔCystatin C, mg/L	P Value	72-h ΔCystatin C, mg/L	P Value
ΔNGAL, ng/mg · uCR
24 h	−0.030	0.62	−0.058	0.34	−0.002	0.97
48 h	0.006	0.92	0.017	0.79	0.064	0.29
72 h	0.029	0.62	0.073	0.22	0.135*	0.023*
ΔNAG, mU/mg · uCR
24 h	−0.106	0.08	−0.001	0.99	0.030	0.62
48 h	−0.018	0.77	0.013	0.83	0.009	0.88
72 h	−0.094	0.12	−0.069	0.25	−0.041	0.49
ΔKIM-1, pg/mg · uCR
24 h	0.025	0.67	0.102	0.09	0.032	0.59
48 h	0.029	0.63	0.140*	0.022*	0.083	0.17
72 h	0.014	0.81	0.051	0.40	0.048	0.43

KIM-1 indicates kidney injury molecule 1; NAG, N-acetyl-β-D-glucosaminidase; and NGAL, neutrophil gelatinase-associated lipocalin.

^*Significant.