Neutrophil gelatinase-associated lipocalin as a marker of tubular damage appears to be unrelated to fractional excretion of sodium as a marker of tubular function in septic patients, with or without AKI

Table 1 Relationships between NGAL, FENa and AKI

			Urinary NGAL		Urinary NGAL corrected for urinary creatinine		Serum NGAL		Urine:serum NGAL ratio
FENa		n	Spearman	P value	Spearman	P value	Spearman	P value	Spearman	P value
Nonseptic	No AKI	43	0.153	0.328	0.587	<0.0001	0.450	0.002	-0.009	0.953
	AKI	33	-0.039	0.830	0.438	0.011	0.258	0.148	-0.235	0.188
	RIFLE R-F	14	0.015	0.958	0.235	0.418	-0.077	0.793	-0.068	0.817
Septic	No AKI	12	-0.168	0.602	-0.007	0.983	0.232	0.467	-0.427	0.167
	RIFLE R-F	5	-0.300	0.624	0.500	0.391	0.112	0.858	-0.400	0.505

ISSN: 1364-8535