. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: J Trauma Acute Care Surg. 2013 Sep;75(3):10.1097/TA.0b013e31829de6cd. doi: 10.1097/TA.0b013e31829de6cd

Table 5.

Multivariable Regression Analysis for Hospital Mortality, Ventilator-Free Days and ICU-Free Days^*

	Hospital Mortality c-statistic=0.894, Hosmer-Lemeshow GOF 0.812		Ventilator-Free Days R²=34.5%		ICU-Free Days R²=39.9%
Predictors	OR (CI for OR)	p-value	Estimate (SE)	p-value	Estimate (SE)	p-value

Age (years)	1.04 (1.01, 1.07)	0.0208	−0.05 (0.04)	0.2368	0.003 (0.03)	0.9369
Male Gender (vs. Female)	1.38 (0.56, 3.42)	0.4910	0.14 (1.29)	0.9114	−0.44 (1.11)	0.6922
African-American Race (vs. Other)	0.86 (0.27, 2.75)	0.7983	−0.55 (1.58)	0.7270	−1.1 (1.38)	0.4282
Elective (vs. Emergent)	1.48 (0.54, 4.07)	0.4508	−0.81 (1.38)	0.5579	−1.44 (1.18)	0.2233
APACHE II	1.13 (1.06, 1.20)	<.0001	−0.53 (0.08)	<.0001	−0.57 (0.07)	<.0001
Septic Shock (vs. Severe Sepsis)	1.53 (0.60, 3.92)	0.3732	−0.71 (1.49)	0.6352	−0.97 (1.31)	0.4618
Sepsis Source
(Abdominal vs. Other^*)	0.74 (0.25, 2.19)	0.5819	0.97 (1.57)	0.5384	0.79 (1.36)	0.5610
(Respiratory vs. Other^*)	1.08 (0.20, 5.78)	0.9280	−0.61 (2.59)	0.8154	−2.09 (2.27)	0.3593
RIFLE AKI (Yes vs. No)	7.12 (1.35, 37.58)	0.0208	−3.76 (1.44)	0.0097	−2.97 (1.22)	0.0162

Other: UTI, central line infections, soft tissue, other

OR= Odds ratio, CI=Confidence interval, GOF=goodness-of-fit