. 2005 Jan 6;9(2):R60–R65. doi: 10.1186/cc3023

Table 2.

Multivariable logistic modeling of variables associated with in-hospital death among patients admitted for at least 48 hours to a Calgary Health Region intensive care unit, 2000–2002

Variable	Odds ratio (95% CI)	P
Admission APACHE II score (per point)	1.09 (1.08–1.10)	<0.001
Logarithm of ICU length of stay (per day)	1.31 (1.18–1.45)	<0.001
Non-cardiac surgical patient^a	0.78 (0.66–0.92)	<0.01
Cardiac surgical patient^a	0.14 (0.11–0.18)	<0.001
ICU-acquired urinary tract infection	1.02 (0.76–1.37)	0.9

^aCompared with a reference group of medical patients.

APACHE II, Acute Physiology and Chronic Health Evaluation II; CI, confidence interval; ICU, intensive care unit.