Table 3.

Results of Multivariate Logistic Regression for Covariates Associated With Mortality in Mechanically Ventilated Pregnant Patients With Acute Respiratory Distress Syndrome

Variable	OR	95% CI	Adjusted OR	95% CI	P
Age (per year)	—	—	1.01	0.99–1.03	.36
Prolonged mechanical ventilation	2.17	1.66–2.84	1.69	1.25–2.28	<.01
Renal failure requiring hemodialysis	5.07	3.19–8.05	3.40	2.11–5.47	<.01
Insurance coverage	0.65	0.44–0.95	0.56	0.37–0.85	<.01
Gestational diabetes	0.70	0.32–1.50	0.75	0.37–1.52	.42
Tobacco use	0.51	0.30–0.87	0.53	0.31–0.90	.02
Eclampsia	0.83	0.60–1.16	0.82	0.58–1.16	.27
Gestational hypertension	1.05	0.69–1.60	1.11	0.71–1.71	.66
Multiparity	0.45	0.14–1.47	0.47	0.15–1.55	.22
Liver failure	2.72	1.78–4.15	1.71	1.09–2.68	.02
Amniotic fluid embolism	2.42	1.28–4.58	2.31	1.16–4.59	.02
Thermal injury	1.83	0.64–5.27	2.11	0.59–7.63	.25
Trauma	1.11	0.59–2.10	0.93	0.45–1.89	.84
Influenza	2.30	1.37–3.86	2.26	1.28–4.00	<.01
Pneumonia	0.84	0.63–1.13	0.70	0.50–0.98	.04
Septic obstetric emboli	2.60	1.46–4.64	2.15	1.17–3.96	.01
Puerperal infection	2.27	1.57–3.28	1.86	1.28–2.70	<.01

All variables displayed were included in the final model.