TABLE 4.

Logistic Regression Analysis of the Influence of Factors Predicting All-Cause In-Hospital Mortality for Trauma ICU Patients

Variable	OR	95% CI	Wald Chi-Square Estimate	p
Sex, female	0.59	0.38–0.92	5.48	0.019
Age, per year	1.02	1.01–1.04	12.39	0.0004
Race
White, non-Hispanica	1.00	NA	NA	NA
Black	0.77	0.40–1.48	0.60	0.44
Other	0.51	0.17–1.54	1.42	0.23
Pre-ICU admission medical history
Any comorbidity	0.79	0.45–1.38	0.68	0.41
Cardiac disease	1.34	0.74–2.41	2.01	0.16
Diabetes	0.80	0.42–1.53	0.44	0.51
Chronic renal failure	1.27	0.39–4.12	0.15	0.69
Chronic steroid use	0.71	0.17–2.88	0.23	0.63
Hepatic dysfunction	2.53	1.08–5.92	4.58	0.03
Malignancy	0.54	0.19–1.57	1.27	0.26
Penetrating trauma mechanism	1.18	0.62–2.27	0.25	0.62
World Health Organization score at ICU admission, per point	1.15	0.85–1.57	0.83	0.36
McCabe score at ICU admission, per point	1.40	0.88–2.22	2.02	0.16
Acute Physiology and Chronic Health Evaluation II score, per point	1.13	1.10–1.17	57.05	< 0.0001
Marshall or Multiple Organ Dysfunction score, per point	1.08	1.02–1.14	8.15	0.004
Injury Severity Score, per point	1.02	1.00–1.03	5.02	0.025
Do-not-resuscitate status at time of ICU admission	3.67	1.08–12.48	4.35	0.037
Probability of trauma survival (Trauma Score-Injury Severity Score)	0.55	0.34–0.89	5.92	0.015

OR = odds ratio, R² = 0.143, c statistic = 0.826, NA = not applicable.

^aReferent group.