Variable | No. Stroke/No. Total (%) | OR (95% CI) | P Value |
---|---|---|---|
Age (yr) | 54.2 ± 15.6/57.0 ± 14.1 | 0.99 (0.97–1.01) | .2516 |
Sex | |||
Male | 8.1% (13/161) | 2.33 (1.15–4.70) | .0187 |
Female | 3.6% (23/632) | Ref | |
Hypertension | |||
Yes | 9.2% (23/249) | 2.60 (1.26–5.33) | .0093 |
No | 3.8% (12/318) | Ref | |
Controlled hypertension | |||
Yes | 8.7% (18/206) | 3.03 (1.54–5.94) | .0013 |
No | 0.0% (0/4) | Ref | |
Current smoker | |||
Yes | 4.3% (4/94) | 0.93 (0.32–2.68) | .8878 |
No | 4.6% (32/699) | Ref | |
Aneurysm location | |||
Posterior circulation | 6.7% (6/89) | 1.62 (0.66–4.02) | .2940 |
Anterior circulation | 4.3% (30/704) | Ref | |
Aneurysm location by vessel | |||
Internal carotid artery | 3.9% (23/590) | Ref | |
Anterior cerebral artery | 12.5% (1/8) | 4.83 (0.72–32.44) | .1052 |
Basilar artery | 9.3% (4/43) | 2.75 (0.94–8.02) | .0636 |
Middle cerebral artery | 12.5% (5/40) | 3.74 (1.38–10.16) | .0096 |
PcomA | 1.9% (1/53) | 0.69 (0.13–3.74) | .6668 |
Vertebral artery | 6.1% (2/33) | 1.92 (0.49–7.55) | .3523 |
Other | 0.0% (0/26) | 0.46 (0.03–8.12) | .5928 |
Rupture status | |||
Ruptured | 5.4% (4/74) | 1.23 (0.42–3.57) | .7074 |
Unruptured | 4.5% (32/719) | Ref | |
Aneurysm type | |||
Saccular | 3.2% (19/600) | Ref | |
Fusiform | 12.7% (13/102) | 4.47 (2.13–9.36) | .0001 |
Dissecting | 3.8% (2/53) | 1.20 (0.27–5.29) | .8105 |
Other | 5.3% (2/38) | 1.70 (0.38–7.58) | .4873 |
Aneurysm size | |||
<10 mm | 2.6% (10/387) | Ref | |
10–24.9 mm | 4.7% (16/338) | 1.87 (0.84–4.19) | .1260 |
≥25 mm | 14.3% (9/63) | 6.28 (2.44–16.16) | .0001 |
Note:—Ref. indicates reference; PcomA, posterior communicating artery.