Table 3.

Cox proportional hazards regression analysis on BAL NGAL for ICU mortality.

	Univariate		Multivariate
	HR (95% CI)	P	HR (95% CI)	P
RRT during treatment	2.59 (1.26–5.32)	0.010	2.76 (1.04–7.36)	0.043
High BAL NGAL (> 130 ng/ml)	42.57 (1.62–1120.0)	0.025
Age	1.02 (1.00–1.05)	0.053
SOFA	1.19 (1.05–1.35)	0.008
APACHE II	1.05 (1.00–1.09)	0.041

HR hazard ratio, CI confidence interval, RRT renal replacement therapy, NGAL neutrophil gelatinase-associated lipocalin, BAL bronchoalveolar lavage, SOFA sequential organ failure assessment, APACHE II Acute Physiology and Chronic Health Evaluation II.