Table 3.

Comparison of neutrophil gelatinase-associated lipocalin and serurm creatinine at various time intervals in acute kidney injury and no acute kidney injury patients

Parameters	Mean±SD		P
	AKI (n=7)	No AKI (n=73)
NGAL (ng/ml)
Base line	20.05±21.52	15.14±11.73	0.740
At 4 h	385.58±197.17	35.42±32.54	0.000*
Serum creatinine (mg %)
Preoperative	1.23±0.14	1.07±0.18	0.062
At 4 h	1.21±0.25	1.07±0.19	0.074
At 24 h	1.71±0.50	1.03±0.15	<0.0001*
At 48 h	1.89±0.32	1.03±0.14	<0.0001*
At 72 h	2.13±0.42	1.05±0.14	<0.0001*

Mann–Whitney U-test, *P<0.05, statistically significant. NGAL: Neutrophil gelatinase-associated lipocalin, SD: Standard deviation, AKI: Acute kidney injury