Table 1.

Demographics, medical history, and clinical presentations of patients with tandem lesions versus isolated intracranial large vessel occlusions. Count (percent) reported unless noted otherwise. Abbreviations: IQR interquartile range, TIA transient ischemic attack, NIHSS NIH stroke scale, ICA internal carotid artery, M1 first segment of middle cerebral artery, M2 second segment of middle cerebral artery.

	Tandem Lesion (N=62)	Isolated Intracranial (319)	P
Age, Median (IQR)	63 (54–74)	70 (59–81)	0.003
Female	24 (39%)	169 (53%)	0.051
Atrial Fibrillation	8 (13%)	128 (40%)	<0.0001
Diabetes	14 (23%)	65 (20%)	0.732
Hypertension	39 (63%)	217 (68%)	0.461
Coronary Disease	12 (19%)	74 (23%)	0.619
Stroke/TIA	9 (15)	59 (19%)	0.587
Smoking	17 (27%)	55 (17%)	0.075
NIHSS, Median (IQR)	16 (14–21)	17 (13–20)	0.776
Cervical ICA Lesion
Atherosclerosis	46 (74%)	-	-
Dissection	16 (26%)	-	-
Intracranial Occlusion
ICA Terminus	21 (34%)	49 (15%)	0.001
M1	37 (60%)	225 (71%)	0.101
M2	4 (6%)	44 (14%)	0.143