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Table 1: Baseline characteristics of patients with stroke
Characteristics 
Sex (No.) (%) 
 Male 162/300 (54)
 Female 138/300 (46)
Age (mean) (yr) 63.3 ± 13.9
Ethnicity (No.) (%)
 African American 198/300 (66)
 White 65/300 (21.7)
 Other 37/300 (12.3)
MRA (No.) (%) 248/300 (82.7)
CTA (No.) (%) 146/300 (48.7)
Diagnostic DSA (No.) (%) 15/300 (5.0)
DUS (No.) (%) 34/300 (11.3)