Table 3.

Multivariate Cox regression analysis of factors associated with 30-day mortality in patients with vancomycin-resistant Enterococcus faecium bacteremia.

Variable	Adjusted HR	95% CI	P value
Model I
Linezolid treatment	0.08	0.02–0.27	<0.001
Acute kidney injury	4.01	1.62–9.94	0.003
Model II
Linezolid treatment	0.13	0.03–0.47	0.002
Initial serum creatinine, g/dL	1.58	1.09–2.29	0.01

HR: hazard ratio; 95% CI: 95% confidence interval.