Table 1:
Prevalence of intracranial atherosclerotic disease/extracranial atherosclerotic disease by race.
Race
ICAD
ECAD
South Asians [
11
,
12
]
20%–54%
10%
East Asians [
11
]
7%
18%
US Whites [
3
,
13
]
1%–24%
11%–33%
US Blacks [
3
,
13
]
6%–22%
8%–15%
US Hispanics [
3
]
11%
9%
Chinese [
14
]
33%–50%
19%
Koreans [
1
,
15
]
56.3%
†
–26.4%
12.2%
Singapore [
1
]
47.9%
NR
Thailand [
16
]
47%
49%
†
The authors used 30% stenosis as cutoff.
ICAD: intracranial atherosclerotic disease, ECAD: extracranial atherosclerotic disease.