Table 1.

Baseline Characteristics

Characteristic	Overall (n=272 075)	LVAD Hospital (n=70 685)	Non‐LVAD Hospital (n=201 390)	P Value	Standardized Difference, %
Age, y	67.5±14.5	64.1±15.1	68.7±14.1	<0.001	13.9
Women	39.6	38.0	40.2	<0.001	4.4
Black race	13.0	17.1	11.5	<0.001	15.9
Weekend admission	26.1	23.3	26.3	<0.001	6.9
Bed size				<0.001
Small	9.3	0.8	12.3		47.7
Medium	23.6	8.0	29.1		56.3
Large	67.1	91.2	58.6		81.0
Urban location	95.4	99.9	93.8	<0.001	35.8
Teaching hospital	66.9	98.1	55.9	<0.001	115.9
Region				<0.001
Northeast	18.0	23.9	15.9		20.3
Midwest	21.3	22.9	20.7		5.4
South	39.6	39.7	39.6		0.2
West	21.1	13.5	23.8		26.9
Cardiac comorbidities
Known coronary artery disease	53.9	50.7	55.0	<0.001	8.6
Family history of coronary artery disease	3.1	3.1	3.1	0.829	0.3
Prior myocardial infarction	9.9	10.3	9.8	0.208	1.6
Prior percutaneous coronary intervention	8.8	9.5	8.5	0.005	3.6
Prior coronary artery bypass surgery	7.5	7.8	7.4	0.215	1.4
Elixhauser comorbidities
Congestive heart failure	24.2	24.5	24.1	0.414	1.0
Chronic pulmonary disease	25.2	22.0	26.3	<0.001	10.1
Coagulopathy	20.9	25.2	19.4	<0.001	13.9
Deficiency anemias	24.1	21.8	24.9	<0.001	7.3
Diabetes mellitus (uncomplicated)	27.4	26.3	27.8	0.011	3.3
Diabetes mellitus with complications	7.9	6.7	8.3	<0.001	6.1
Hypertension	57.9	55.1	58.8	<0.001	7.5
Liver disease	4.4	5.1	4.1	<0.001	4.5
Fluid and electrolyte disorders	62.0	63.5	61.5	0.021	4.0
Obesity	14.1	14.3	14.1	0.665	0.6
Peripheral vascular disease	13.8	13.8	13.8	0.916	0.1
Pulmonary circulation disorders	6.6	7.6	6.2	<0.001	5.5
Chronic renal failure	31.4	32.3	31.0	0.054	2.8
Valvular disease	7.0	7.3	6.9	0.171	1.6
Weight loss	12.7	14.9	12.0	<0.001	8.7
≥3 Elixhauser comorbidities	74.5	75.3	74.3	0.279	2.2

Data are given as mean±SD for age; otherwise, percentages are given. LVAD indicates left ventricular assist device.