Table 1.

Demographics and Aneurysm Characteristics

Characteristics	Endovascular Therapy	Surgical Clipping	P
Total patients, n	91	60
Mean age, y, mean±SD	53.9±15.8	51.8±12.9	0.4
Sex, female, n (%)	65 (71.4)	41 (68.3)	0.7
Aneurysm size, mm, mean±SD	2.8±0.3	2.5±0.3	<0.001*
Hunt and Hess Grades I–II, n (%)	27 (29.7)	26 (43.3)	0.2
Mean Hunt and Hess grade, mean±SD	2.7±1.1	2.5±1.2	0.3
Posterior circulation aneurysms, n (%)	14 (15.4)	0	0.001*
Anterior and posterior communicating artery aneurysms, n (%)	52 (57.1)	42 (70)	0.1

^*Statistically significant values. SD indicates standard deviation.