Table 4:

Risk factors for angiographic recurrence

	Univariate P	Relative Risk	95% CI	Logistic Regression P
Younger age	.004			.008
Location
ICA	.056	0.84	0.70–1.00
MCA	.72	1.04	0.86–1.25
AcomA	.39	1.09	0.90–1.32
Vertebrobasilar	.82	1.05	0.78–1.37
Pericallosal	.054	1.50	0.99–2.03
PCA	.50	0.56	0.10–1.63
Sac size	<.0001			<.00001
Neck size	.001			.02
Packing density	.013			.005
Cumulative follow-up period	.33
Balloon-assisted	.82	0.98	0.83–1.16
SAH	<.0001	1.72	1.46–2.02	<.00001
No stent	<.0001	2.30	1.65–3.28	<.00001

Note:—AcomA indicates anterior communicating artery; PCA, posterior cerebral artery.