Table 2.

Hospital admission characteristics of study population

Variable	Overall N=72,660	No AF N=40,149	Preexisting AF N=29,563	New-onset AF N=2,948	P value
Length of hospital stay (days) Median (IQR)	4 (2–7)	3 (2–6)	4 (3–8)	6 (3–10)	<0.001
ICU stay (days) mean (SD)	2.3 (4.2)	2.0 (3.6)	2.6 (4.8)	3.3 (5.1)	<0.001
Next day discharge	7.7	9.1	6.2	3.9	<0.001
Early discharge (≤72 h)	47.1	53.8	40.1	26.2	<0.001
Acute kidney injury	13.5	11.0	16.0	20.7	<0.001
Respiratory complications	1.8	1.6	2.1	2.5	<0.001
Transfusion	11.7	10.4	13.0	16.1	<0.001
Vascular complication	1.6	1.3	1.8	2.2	<0.001
In-hospital stroke	2.0	1.8	2.0	4.0	<0.001
Discharge destination
Home	47.9	53.5	42.3	28.1	<0.001
Skilled nursing facility	16.0	12.8	18.7	31.9
Home health care	28.2	27.4	29.8	23.5
Inpatient rehabilitation	3.8	2.9	4.0	12.7
High volume center	53.6	53.2	54.9	53.1	0.001