Table 2. Prevalence of Significant Intracranial Atherosclerotic Disease According to the Presence of Nonintracranial Atherosclerosis.

Characteristic	Intracranial Stenosis ≥50% or Occlusion		P Value
	No (n = 257)	Yes (n = 146)
No. (%) with atherosclerosis
Extracranial carotid artery	168 (66.2)	107 (74.8)	.07
Aortic arch	99 (49.0)	70 (60.9)	.04
Descending aorta	41 (20.3)	30 (26.1)	.23
Abdominal aorta	53 (23.7)	39 (31.2)	.13
Femoral artery	169 (72.8)	101 (76.5)	.44
Coronary artery	153 (63.2)	103 (76.9)	.007