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TABLE 1: Patient and aneurysm characteristics
Variable Group A (n = 52) Group B (n = 33)
Mean (± SD) age (y) 59.3 ± 12.4 58.1 ± 14.0
Sex 
    Female 35 22
    Male 17 11
Location of aneurysm 
    Internal carotid artery 24 14
    Anterior cerebral artery 15 12
    Middle cerebral artery 5 1
    Vertebrobasilar system 8 6
Mean (± SD) aneurysm size (mm) 5.0 ± 3.0 5.0 ± 2.8
Mean (± SD) no. of coils 5.3 ± 4.5 4.8 ± 2.4
Note.—Differences between the groups for all variables were not significant (P > .05).

Variable	Group A (n = 52)	Group B (n = 33)
Mean (± SD) age (y)	59.3 ± 12.4	58.1 ± 14.0
Sex
Female	35	22
Male	17	11
Location of aneurysm
Internal carotid artery	24	14
Anterior cerebral artery	15	12
Middle cerebral artery	5	1
Vertebrobasilar system	8	6
Mean (± SD) aneurysm size (mm)	5.0 ± 3.0	5.0 ± 2.8
Mean (± SD) no. of coils	5.3 ± 4.5	4.8 ± 2.4