TABLE 1. Characteristics of the Two Study Groups

FactorSymptomatic (n=12)Asymptomatic (n=15)
Age, years63.7 (9.8)70.9 (8.4)
Male Gender, no. (%)7 (58.3)11 (73.3)
Hypertension, no. (%)8 (66.7)12 (80)
Diabetes mellitus, no. (%)5 (41.7)2 (13.3)
Hyperlipidemia, no. (%)10 (83.3)13 (86.7)
Ischemic heart disease, no. (%)3 (25)3 (20)
Smoker (current or previous), no. (%)12 (100)12 (80)
Antiplatelet therapy, no.
    Aspirin213
    Aspirin and dipyridamole41
    Aspirin and clopidogrel61
Carotid stenosis, % (mean±SD)78.7 (16.6)88.8 (8.0)