Table 4.

Logistic Regression Model Results for Relationship Between Mortality and the Use and Results of Respiratory Viral Testing^a

Effect	Effect level	Odds ratio (95%CI)	P-value
Viral test	1: Negative	0.78 (0.74, 0.82)	<.0001
	2: Positive	0.66 (0.58, 0.75)
	0: No test	Reference
Age	Per year	1.03 (1.02, 1.03)	<.0001
Male		0.98 (0.94, 1.02)	0.2878
Race	Black	0.89 (0.84, 0.96)	0.0095
	Hispanic	0.78 (0.59, 1.03)
	Others	0.99 (0.92, 1.07)
	Unknown	1.11 (0.61, 2.02)
	White	Reference
Insurance status	Commercial Indemnity	0.83 (0.71, 0.98)	0.0448
	Managed Care	0.88 (0.78, 0.99)
	Medicaid	0.86 (0.76, 0.97)
	Medicare	0.85 (0.77, 0.95)
	Others	Reference
Teaching hospital		0.88 (0.76, 1.02)	0.0906
Urban hospital		0.97 (0.82, 1.16)	0.769
Bed size	201–400	1.11 (0.96, 1.29)	0.0345
	>400	1.27 (1.06, 1.52)
	≥200 beds	Reference
Hospital region	Midwest	0.7 (0.57, 0.85)	0.0005
	Northeast	0.95 (0.76, 1.19)
	South	0.83 (0.69, 1.00)
	West	Reference
Combined comorbidities		1.07 (1.06, 1.08)	<.0001
Organ failure score		1.7 (1.67, 1.74)	<.0001
Chronic pulmonary disease		0.76 (0.73, 0.79)	<.0001
Pulmonary circulation disease		1.22 (1.14, 1.3)	<.0001
Congestive heart failure		1.08 (1.03, 1.13)	0.001
Diabetes		0.81 (0.78, 0.85)	<.0001
Cancer		2.38 (2.25, 2.53)	<.0001
Paralysis		1.18 (1.08, 1.28)	0.0002
Obesity		0.76 (0.72, 0.82)	<.0001
Liver disease		1.36 (1.23, 1.49)	<.0001
Peripheral vascular disease		0.99 (0.93, 1.05)	0.7043
Admit from SNF		1.43 (1.34, 1.52)	<.0001
Dialysis		0.87 (0.8, 0.95)	0.0014
Previous admission (w/i 6 mo)		1.32 (1.25, 1.39)	<.0001
ICU		1.63 (1.55, 1.71)	<.0001
IMV		1.61 (1.52, 1.71)	<.0001
Vasopressor		1.77 (1.67, 1.88)	<.0001
Oral medication		0.61(0.58, 0.63)	<.0001

Note. SNF, skilled nursing facility; ICU, intensive care unit; IMV, intermittent mandatory ventilation.

^aAdjusted for basic demographics, insurance status, hospital location (urban vs rural), Census Bureau major geographic region, various comorbidities, and markers of severity on admission.