Table 2:

Predictors of thromboembolic complications^{^a}

	Thromboembolic Complications
	Univariable	Multivariable
Age (yr)	1.00 (0.98–1.03, P = .811)
Sex
Female	Ref
Male	0.97 (0.53–1.76, P = .910)
Smoking	1.39 (0.64–2.87, P = .381)
Pretreatment mRS
0–2	Ref	Ref
3–5	3.13 (1.48–6.38, P = .002)	3.00 (1.30–6.68, P = .008)
Multiple aneurysms	2.52 (1.23–4.98, P = .009)	2.55 (1.16–5.42, P = .017)
Aneurysm location
Basilar artery	Ref	Ref
Posterior cerebral artery	1.00 (0.33–2.66, P = .997)	1.20 (0.38–3.42, P = .747)
Posterior inferior cerebellar artery	0.40 (0.06–1.54, P = .244)	0.52 (0.08–2.17, P = .421)
Superior cerebellar artery	0.69 (0.04–4.24, P = .735)	0.75 (0.04–5.50, P = .806)
Vertebral artery	0.45 (0.21–0.94, P = .032)	0.41 (0.18–0.90, P = .025)
Vertebrobasilar junction	2.25 (0.76–6.25, P = .126)	1.56 (0.46–5.03, P = .461)
Aneurysm shape
Fusiform/dolichoectatic/dissecting	Ref	Ref
Saccular	0.40 (0.18–0.81, P = .017)	0.43 (0.18–0.95, P = .045)
Size of aneurysm (mm)	1.04 (1.00–1.07, P = .021)	1.01 (0.97–1.05, P = .612)
Previous SAH
None	Ref
<2 weeks	1.50 (0.61–3.33, P = .348)
>2 weeks	0.69 (0.11–2.51, P = .633)
Prior treatment
None	Ref
Endovascular	0.71 (0.16–2.11, P = .585)
Operation	6.62 (0.26–169.46, P = .184)
Both	NA
Number of devices
1	Ref	Ref
≥2	3.51 (1.84–6.64, P < .001)	1.79 (0.82–3.82, P = .136)
Antiplatelet regimen changed	0.72 (0.04–4.00, P = .759)
Adjunctive coiling	0.76 (0.30–1.68, P = .531)

Note:—NA indicates not applicable; Ref, reference variable for comparison.
↵a Covariates that have P < .1 in the univariable analysis were included in the multivariable analysis. Data are OR (95% CI, P Value).