Table 3.

Three models of multivariate logistic regression analysis for risk factors associated with aneurysmal symptoms.

Multivariate analysis	Parameters	OR	95% CI	P-value
Cross-section model	Male	7.352	1.113–48.548	0.038*
	Age	0.914	0.848–0.984	0.018*
	Mural thrombus	2.911	0.559–15.161	0.204
	IFAs type	2.558	0.900–7.271	0.078
	CRstalk−cross	2.346	1.006–5.472	0.048*
Long-axis section model	Male	7.932	1.100–57.218	0.040*
	Age	0.900	0.830–0.975	0.010*
	Mural thrombus	1.821	0.286–11.604	0.526
	IFAs type	1.527	0.416–5.607	0.524
	CRstalk−long	2.536	1.018–6.323	0.046*
	L max	1.138	1.021–1.269	0.019*
Combination model	Male	9.631	1.298–71.437	0.027*
	Age	0.900	0.830–0.976	0.011*
	IFAs type	1.544	0.426–5.598	0.509
	Mural thrombus	1.312	0.191–9.002	0.783
	CRstalk−cross, per SD	2.995	1.115–8.042	0.030*
	CRstalk−long, per SD	1.054	0.206–5.396	0.949
	L max	1.136	1.020–1.264	0.020*

CR_{stalk−cross}, the aneurysm-to-pituitary stalk ratio in the cross-section; CR_stalk−long, the aneurysm-to-pituitary stalk ratio in the long-axis; OR, odds ratio.

^*P < 0.05.