Table 3.

COX Regression Analysis for 30-Day Mortality

	HR	95% CI	P value
Age	1.028	1.005–1.051	0.010
Immunocompromised host	5.254	1.495–28.464	0.01
Lung infection	4.802	2.567–8.982	<0.001
Septic shock	2.054	0.837 −5.037	0.116
SOFA score at ICU admission	1.206	1.094–1.329	<0.001

Abbreviations: ICU, intensive care unit; SOFA, Sequential Organ Failure Assessment score; HR, hazard ratio; CI, confidence interval.