Comparison of Aggressive Surgical Treatment and Palliative Treatment in Elderly Patients with Poor-Grade Intracranial Aneurysmal Subarachnoid Hemorrhage

Table 3

Univariate analysis of the potential prognostic factors.

Factor	Group	Sample size	Mean rank	OR value	Confidential interval of the OR value	P value
Sex	Male	40	49.48	0.699	0.329–1.484	0.381
	Female	64	54.39
Age	60–70 years old	74	56.03	1.845	1.170–2.910	0.046
	≥70 years old	30	45.13
Smoking	Never	72	53.45	1.261	0.571–2.787	0.564
	Yes	32	50.36
Alcohol consumption	Never	78	52.47	0.992	0.430–2.293	0.932
	Yes	26	52.58
Aneurysm diameter	≤3 mm	14	51.32	1.062	0.128–8.820	0.825
	3–10 mm	86	52.79	1.174	0.174–7.933
	≥10 mm	4	50.38	1.000
Breathing status	Unsteady	11	42.14	0.501	0.142–1.765	0.191
	Steady	93	53.73
Cerebral hernia	No	95	54.26	4.730	0.892–25.103	0.093
	Yes	9	33.89
Aneurysm location	Anterior circulation	93	52.11	0.799	0.248–2.573	0.453
	Posterior circulation	11	55.82
WFNS grade	IV	53	63.44	5.048	2.307–11.045	<0.001
	V	51	41.13
Head CT Fisher grade	1 and 2	24	62.92	2.573	1.080–6.129	0.008
	3, 4 and 5	80	49.38
treatment approach	clipping	34	60.15	7.360	2.092–25.868	0.004
	coiling	49	54.57	5.233	1.567–17.479	0.007
	palliative	21	35.29	1.000
The timing of the aneurysm surgery	Ultra-early surgery	32	38.13	0.839	0.310–2.277	0.732
	Early surgery	29	50.64	2.450	0.878–6.835	0.087
	Mid–late surgery	24	40.27	1.000