Table 4. The relationship between vascular stenosis and incident stroke based on individual artery.

Characteristics	HR (95% CI)
common carotid artery
<120 cm/s	1.0
≥120 cm/s	NA
external carotid artery
<120 cm/s	1.0
≥120 cm/s	NA
internal carotid
<120 cm/s	1.0
≥120 cm/s	NA
subclavian artery
<120 cm/s	1.0
≥120 cm/s	1.24 (0.46–3.35)
middle cerebral artery
<140 cm/s	1.0
≥140 cm/s	1.92 (1.01–3.67)
anterior cerebral artery
<140 cm/s	1.0
≥140 cm/s	1.97 (0.73–5.35)
posterior cerebral artery
<140 cm/s	1.0
≥140 cm/s	NA
vertebral artery
<140 cm/s	1.0
≥140 cm/s	14.19 (3.50–57.49)
basilar artery
<140 cm/s	1.0
≥140 cm/s	3.78 (0.53–27.06)