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Table 1: 
Patient and aneurysm characteristics
Surgical Group (No.) (%)Endovascular Group (No.) (%)
No. of patients173 (42.9)230 (57.1)
Male/female52 (30.1)/121 (69.9)68 (29.6)/162 (70.4)
Age (yr) (mean)17–77 (53.1)16–97 (53.6)
No. of aneurysms treated199244
No. of aneurysms treated per patient
    1153 (88.4)218 (94.8)
    216 (9.2)10 (4.3)
    33 (1.7)2 (0.9)
    51 (0.6)–
Size of treated aneurysm
    Small (<5 mm)96 (48.2)98 (40.2)
    Medium (5–15 mm)90 (45.2)136 (55.7)
    Large (15–25 mm)13 (6.5)10 (4.1)
Aneurysm morphology
    Saccular198 (99.5)242 (99.2)
    Dissecting–1 (0.4)
    Fusiform1 (0.5)1 (0.4)