Table 2.

Area under the receiver-operating characteristics curve for biomarker models on day 2, 7, 14 and for the largest relative changes for predicting recovery from AKI.

Plasma biomarker	Time point	AUC	95%CI	P*
pNGAL	Day 2	0.54	0.41 to 0.69
	Day 7	0.50	0.36 to 0.64
	Day 14	0.55	0.37 to 0.73
	Largest relative change#	0.59	0.45 to 0.74
pBNP	Day 2	0.50	0.36 to 0.65
	Day 7	0.58	0.45 to 0.72
	Day 14	0.59	0.41 to 0.78
	Largest relative change#	0.59	0.46 to 0.73
pNGAL and pBNP	Day 2	0.55	0.41 to 0.68	0.89
	Day 14	0.63	0.44 to 0.81	0.53
	Largest relative change#	0.60	0.47 to 0.74	0.86

AUC, area under the receiver-operating characteristic curve; CI, confidence interval, pNGAL, plasma neutrophil gelatinase-associated lipocalin; pBNP, plasma B-type natriuretic peptide.

^#Largest relative change in the first 7 or 14 days as compared to day 2

^*Compared with pNGAL model on day 2, day 14 and for the largest relative change Biomarkers analysis on day 14 was performed on only 42 patients