. Author manuscript; available in PMC: 2014 Mar 3.

Published in final edited form as: Crit Care Med. 2012 May;40(5):1470–1477. doi: 10.1097/CCM.0b013e3182416d7a

Table 4.

Multivariate analysis of odds of developing acute respiratory distress syndrome, matched analysis by propensity score for receipt of statin therapy

Variable	Odds Ratio^a	95% Confidence Interval	p
Statin therapy	0.80	0.58–1.11	.19
Age (per year)	0.99	0.98–0.99	.01
APACHE III (per point)	1.01	1.01–1.02	<.01
Septic shock	2.29	1.84–2.84	<.01
Pneumonia	2.09	1.22–3.58	<.01
Direct lung injury	1.90	1.11–3.27	.02
PRBC units transfused (per unit)	1.04	1.02–1.06	<.01
Trauma	1.53	0.97–2.40	.07
History of diabetes	0.69	0.54–0.90	<.01
Serum total bilirubin (per mg/dL)	1.02	0.98–1.05	.32
Obesity (BMI >30)	1.75	1.38–2.21	<.01
Morbid obesity (BMI >40)	1.76	1.19–2.61	<.01

APACHE, Acute Physiology and Chronic Health Evaluation; PRBC, packed red blood cell; BMI, body mass index.

Odds ratio for effect of each variable on risk of developing acute respiratory distress syndrome, as calculated in multivariate logistic regression model with matching by decile of propensity score.