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Table 2: Primary and secondary outcomes
Surgical (n = 142) Endovascular (n = 148)
Primary outcome^{^a} (composite)^{^b} (No.) (%) 13 (9) 28 (19)
 Failure to occlude aneurysm with allocated technique 1 (1) 5 (3)
 Intracranial hemorrhage during FU 2 (2) 1 (1)
 Saccular residual aneurysm 10 (7) 22 (15)
 Missing primary outcome 1 (1) 0
Secondary outcomes n = 143 n = 148
 No. of days hospitalized per treatment (mean) (median) (range) 6.7 (5) (1–25) 3.8 (1) (0–122)
 No. of patients hospitalized for >5 days (No.) (%) 69 (48) 12 (8)
 Patients with postoperative morbidity (discharge mRS > 2) (No.) (%) 3 (2) 4 (3)
 Patients with new neurologic deficits following treatment (No.) (%) 32 (22) 19 (12)
Discharge location
 Home (No.) (%) 135 (94) 142 (96)
 Other hospital (No.) (%) 4 (3) 2 (1)
 Rehabilitation center (No.) (%) 3 (2) 3 (2)
 Death (No.) (%) 1 (1) 1 (1)
1-year mRS (No.) (%)
 0 79 (55) 93 (63)
 1 55 (38) 41 (28)
 2 6 (4) 11 (7)
 3 1 (1) 1 (1)
 4 1 (1) 1 (1)
 5 0 0
 6 1 (1) 1 (1)
Death and dependency (mRS >2) at 1 year (No.) (%) 3 (2) 3 (2)
Mean (SD) time of 1-year mRS assessment (mo) 15.1 (9.4) 15.4 (6.4)
Retreatment of index aneurysm during follow-up (No.) (%) 3 (2) 8 (5)
Angiographic outcome at 1 year
 Complete aneurysm occlusion (No.) (%) 114 (80) 84 (57)
 Residual aneurysm neck (No.) (%) 16 (11) 40 (27)
 Saccular residual aneurysm (No.) (%) 11 (8) 23 (16)
 1-year imaging not available (No.) (%)^{^c} 2 (1) 1 (1)
 CTA/MRA/catheter angiographic determinations (No.) (%) 116 (81), 14 (10), 11 (8) 14 (10), 106 (72), 27 (18)
 Mean (SD) time of 1-year imaging assessment (mo) 15.7 (10.0) 15.2 (8.2)
Note:—FU indicates follow-up.
↵a RR for the primary outcome: 2.07; 95% CI, 1.12–3.83; P = .021.
↵b One primary outcome was assigned per patient. When a patient had >1 primary outcome, it was assigned on the basis of the following hierarchy: intracranial hemorrhage > failure of technique > residual aneurysm.
↵c There was 1 death in each group.