Table 1:

Patient demographics

VariableLocation, (n [%])P Value
North AmericaInternational
Total patients407219
No. of sites2815
Female sex309 (75.9%)131 (59.8%)<.001
Age > 55 yr218 (53.6%)88 (40.2%)<.001
White350 (86.0%)158 (72.1%)<.001
Current/previous smoker261 (64.1%)130 (59.4%).24
>1 cardiovascular risk factor124 (30.5%)33 (15.1%)<.001
Hypertension217 (53.3%)83 (37.9%)<.001
Hyperlipidemia/hypercholesterolemia122 (30.0%)34 (15.5%)<.001
    Diabetes43 (10.6%)11 (5.0%).02
    Coronary disease63 (15.5%)10 (4.6%)<.001
Prior cerebrovascular accident54 (13.3%)15 (6.8%).02
Hunt and Hess grade 3 or 4 in ruptured patients38/115 (33.0%)24/113 (21.2%).045