Table 2. Urine NGAL, creatinine and NGAL/Cr ratio in APN patients with or without scar formation .

Variable	APN with scar	APN without scar	P
uNGAL (ng/ml)	9.8 ± 4.5	7.2 ± 3.8	0.037
Urine creatinine (mg/dl)	87.02±75.23	62.14± 63.52	0.225
uNGAL/Cr (ng/mg)	0. 22 ± 0.21	0. 24 ± 0.23	0.710

Abbreviations:‏ NGAL, neutrophil gelatinase-associated lipocalin; APN, acute pyelonephritic.