Table 4.

Risk factors for complications with PAO

	Univariate analysis		Multiple logistic regression
	OR [95% CI]	P-value	OR [95% CI]	P-value
Hemorrhagic complications
Age > 70	0	0.18	3.71 × 10−7 (0–4.55)	0.26
Aneurysm location	–	0.01	–	0.41
Small aneurysms (<5 mm)	17.0 (3.55–81.8)	<0.001	9.85 (1.07–221.0)	0.04
Non-saccular shape	1.60 (0.35–7.32)	0.53	0.99 (1.07–221.0)	0.99
Treatment strategy (IT or PO)	1.73 (0.20–14.7)	0.60	2.01 (0.18–70.6)	0.59
Pretreatment antiplatelet therapy (0–3)	–	0.14	–	0.17
Ischemic complications
Age > 70	1.72 (0.83–3.55)	0.13	2.34 (1.02–5.25)	0.04
Aneurysm location	–	0.27	–	0.22
Small aneurysms (<5 mm)	1.76 (0.65–4.74)	0.25	2.56 (0.70–8.74)	0.14
Non-saccular shape	1.18 (0.59–2.08)	0.72	1.04 (0.45–2.45)	0.91
Treatment strategy (IT or PO)	1.10 (0.51–2.37)	0.79	0.96 (0.41–2.40)	0.93
Pretreatment antiplatelet therapy (0–3)	–	0.83	–	0.73

IT: internal trapping, PAO: parent artery occlusion, PO: proximal occlusion.