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Table 2: Aneurysm characteristics in GDC and Matrix groups
GDC Matrix P
No. % No. %
Location .077
    ICA 64 23.2 79 32.8 
    ACA/AcomA 152 55.1 110 45.6 
    MCA 35 12.7 33 13.7 
    VB 25 9.1 19 7.9 
Size .180
    ≤5 106 38.4 106 44.0 
    5–10 148 53.6 110 45.6 
    >10 22 8.0 25 10.4 
Dome-to-neck ratio .510
    ≤1.5 119 43.1 97 40.2 
    >1.5 157 56.9 144 59.8 
Total 276 100.0 241 100.0

	GDC		Matrix		P
	No.	%	No.	%	P
Location					.077
ICA	64	23.2	79	32.8
ACA/AcomA	152	55.1	110	45.6
MCA	35	12.7	33	13.7
VB	25	9.1	19	7.9
Size					.180
≤5	106	38.4	106	44.0
5–10	148	53.6	110	45.6
>10	22	8.0	25	10.4
Dome-to-neck ratio					.510
≤1.5	119	43.1	97	40.2
>1.5	157	56.9	144	59.8
Total	276	100.0	241	100.0