Table 1.

Baseline characteristics of the study population

	Endovascular coiling (n = 84)	Neurosurgical clipping (n = 50)	P-value
Age (years)	68 (64–74)	69 (65–74)	0.770
Gender
Male	21 (25.0)	9 (18.0)	0.347
Female	63 (75.0)	41 (82.0)
Smoking	4 (4.8)	2 (4.0)	0.837
Comorbidities
Hypertension	44 (52.4)	31 (62.0)	0.278
Hyperlipidaemia	32 (38.1)	26 (52.0)	0.116
Diabetes Mellitus	10 (11.9)	8 (16.0)	0.501
Ischemic heart disease	12 (14.3)	5 (10.0)	0.471
Acute hydrocephalus requiring EVD	59 (70.2)	42 (84.0)	0.074
Admission WFNS
I–III	42 (50.0)	28 (56.0)	0.501
IV–V	42 (50.0)	22 (44.0)
Aneurysm number
Single	69 (82.1)	38 (76.0)	0.391
Multiple	15 (17.9)	12 (24.0)
Aneurysm location
Anterior circulation	60 (71.4)	43 (86.0)	0.053
Posterior circulation	24 (28.6)	7 (14.0)
Aneurysm size
< 7mm	61 (72.6)	30 (60.0)	0.130
≥ 7mm	23 (27.4)	20 (40.0)

All categorical data presented are as n (%) and all numerical data are presented as median (interquartile range). EVD = External Ventricular Drain; WFNS = World Federation of Neurosurgical Societies