Table 3.

Final Reduced Model for Predictors of Survival to Discharge

Predictor	Beta-Weight Estimate	Odds Ratio	95% CI
Age, yrs
<50	0	Reference	Reference
50–59	0.0031	1.00	0.91–1.11
60–69	−0.0096	0.99	0.90–1.09
70–79	−0.2560	0.77	0.70–0.85
≥80	−0.6562	0.52	0.47–0.57
Initial cardiac arrest rhythm
Asystole	0	Reference	Reference
Pulseless electrical activity	0.0478	1.05	0.98–1.13
Ventricular fibrillation	1.2631	3.54	3.24–3.86
Pulseless ventricular   tachycardia	1.1289	3.09	2.79–3.43
Hospital location
Nonmonitored unit	0	Reference	Reference
Intensive care unit	0.5643	1.76	1.60–1.93
Monitored unit	0.4816	1.62	1.46–1.79
Emergency room	0.5618	1.75	1.56–1.97
Procedural or surgical area	1.1550	3.17	2.80–3.60
Other	0.6210	1.86	1.54–2.25
Hypotension	−0.4749	0.62	0.57–0.67
Sepsis	−0.4879	0.61	0.56–0.68
Metastatic or hematologic   malignancy	−0.7345	0.48	0.43–0.53
Hepatic insufficiency	−0.7240	0.48	0.42–0.56
Mechanical ventilation	−0.5662	0.57	0.53–0.61
Intravenous vasopressor	−0.7329	0.48	0.44–0.52

CI = confidence interval.