Table 2.

Multivariate Analysis of Factors Associated With 30-Day Mortality in the 90 Patients With MDR- and XDR-Pseudomonas aeruginosa Lower Respiratory Tract Infections

	OR	95% CI	P Value
Septic shock	7.96	2.59–24.54	<.0001
C/T MIC > 2 mg/L	3.33	1.02–10.86	.045
Charlson index score	1.27	1.04–1.55	.019

Abbreviations: C/T, ceftolozane/tazobactam; CI, confidence interval; MDR, multidrug-resistant; MIC, minimal inhibitory concentration; OR, odds ratio; XDR, extensively drug-resistant.