Table 1.

Baseline characteristics of included subjects separated by patients who did vs. did not return to the hospital with PISE.

Variable	Without PISE N=584,047	With PISE N=11,471	p
Age (years), mean [SD)	71 [14]	67 [15]	<0.001
Female, n (%)	305,385 (52)	5,932 (52)	0.2
Race, n (%)			<0.001
White	368,696 (64)	6,206 (55)
Black	87,914 (15)	2,661 (24)
Hispanic	71,463 (13)	1,579 (14)
Asian	24,354 (4)	375 (3)
Other	20,106 (4)	373 (3)
Insurance Payer, n (%)			<0.001
Medicare	394,937 (68)	7,060 (62)
Medicaid	49,623 (9)	1,530 (13)
Private Insurance	100,879 (17)	2,108 (18)
Comorbidities, n (%)
AF	99,331 (17)	2,039 (18)	0.03
HTN	300,829 (52)	5,719 (50)	<0.001
HLD	219,696 (38)	4,033 (35)	<0.001
DM	157,279 (27)	3,287 (29)	<0.001
CKD	58,769 (10)	1,233 (11)	0.02
Smoking	12,564 (2)	507 (4)	<0.001
Drug use	22,495 (4)	683 (6)	<0.001
Alcohol use	99,331 (17)	2,039 (18)	0.03
Hospital Course, n (%)
IV-tPA	23,296 (4)	661 (6)	<0.001
MT	1,878 (0.3)	63 (0.5)	<0.001
Craniectomy	700 (0.1)	77 (0.7)	<0.001
EEG	7,840 (1)	268 (2)	<0.001
Tracheostomy	6,741 (1)	220 (2)	<0.001
PEG	30,054 (5)	1,009 (9)	<0.001
LOS (days), mean [SD]	7 [9]	9 [13]	<0.001