Table V.

Correlation between uNGAL and serum creatinine levels in patients.

Variables	Correlation coefficient, r	P-value
First sample	>0.05	0.30
Second sample	<0.001	0.33
Third sample	<0.001	0.63

First sample, baseline; second, one week after the initiation of chemotherapy; third; end of chemotherapy protocol. uNGAL, urinary neutrophil gelatinase-associated lipocalin.