Table 2:

Subgroup analysis—patient selection via imaging modalities

	Control Group (n = 780)	WUS[advanced] (n = 68)	DUS[advanced] (n = 63)	P Value^{^a}	P Value^{^b}
A) CTP or MRI [advanced]
mRS 0–2 (3 mo) (No.) (%)	299 (38.3)	32 (47.1)	23 (36.5)	.344	NA
In-hospital mortality (No.) (%)	145 (18.9)	5 (7.5)	8 (12.7)	.031	(A) 0.019
					(B) .309
					(C) .388
All-cause mortality (3 mo) (No.) (%)	207 (26.5)	11 (16.2)	13 (20.6)	.120	NA
sICH (No.) (%)	42 (5.5)	1 (1.5)	2 (3.3)	.380	NA
	Control Group (n = 780)	WUS[mri] (n = 47)	DUS[mri] (n = 52)
B) MRI [mri]
mRS 0–2 (3 mo) (No.) (%)	299 (38.3)	24 (51.1)	20 (38.5)	.216	NA
In-hospital mortality (No.) (%)	145 (18.9)	2 (4.3)	8 (15.4)	.024	(A) .009
					(B) .713
					(C) .204
All-cause mortality (3 mo) (No.) (%)	207 (26.5)	6 (12.8)	12 (23.1)	.093	NA
sICH (No.) (%)	42 (5.5)	1 (2.2)	2 (4.0)	.808	NA
	Control [mri] (n = 170)	WUS[mri] (n = 47)	DUS[mri] (n = 52)
C) MRI compared with selected controls [mri]
mRS 0–2 (3 mo) (No.) (%)	83 (48.8)	24 (51.1)	20 (38.5)	.357	NA
In-hospital mortality (No.) (%)	19 (11.5)	2 (4.3)	8 (15.4)	.211	NA
All-cause mortality (3 mo) (No.) (%)	34 (20.0)	6 (12.8)	12 (23.1)	.385	NA
sICH (No.) (%)	5 (3.0)	1 (2.2)	2 (4.0)	.875	NA

Note:—sICH indicates symptomatic intracranial hemorrhage; NA, not applicable.
↵a P value for group comparison.
↵b P value for head-to-head comparison, calculated when the P value for the group comparison was <.05: (A), control group vs WUS; (B), control group vs DUS; (C), WUS vs DUS.