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Table 1: Comparison of initial and follow-up occlusion classes of aneurysms for each HydroCoil group
% Initial Follow-Up
1 (%) 2A (%) 2B (%) 3 (%) 1 (%) 2A (%) 2B (%) 3 (%)
0–19 10 (26.3) 10 (26.3) 9 (23.7) 9 (23.7) 20 (52.6) 11 (28.9) 4 (10.5) 3 (7.9)
20–49 33 (33) 32 (32) 22 (22) 13 (13) 61 (61) 9 (9) 18 (18) 12 (12)
50–69 29 (36.7) 27 (34.2) 8 (10.1) 15 (19) 53 (67.1) 8 (10.1) 11 (29) 7 (8.8)
>70 2 (22.6) 22 (41.5) 13 (24.5) 6 (11.3) 41 (77.3) 1 (1.9) 7 (13.2) 4 (7.5)
100 3 (11.5) 11 (42.3) 10 (38.4) 2 (7.8) 19 (73) 1 (3.8) 4 (15.4) 2 (7.8)
Total 84 (31) 91 (33.7) 52 (19.2) 43 (15.9) 175 (64.8) 29 (10.7) 40 (14.8) 26 (9.6)

%	Initial				Follow-Up
%	1 (%)	2A (%)	2B (%)	3 (%)	1 (%)	2A (%)	2B (%)	3 (%)
0–19	10 (26.3)	10 (26.3)	9 (23.7)	9 (23.7)	20 (52.6)	11 (28.9)	4 (10.5)	3 (7.9)
20–49	33 (33)	32 (32)	22 (22)	13 (13)	61 (61)	9 (9)	18 (18)	12 (12)
50–69	29 (36.7)	27 (34.2)	8 (10.1)	15 (19)	53 (67.1)	8 (10.1)	11 (29)	7 (8.8)
>70	2 (22.6)	22 (41.5)	13 (24.5)	6 (11.3)	41 (77.3)	1 (1.9)	7 (13.2)	4 (7.5)
100	3 (11.5)	11 (42.3)	10 (38.4)	2 (7.8)	19 (73)	1 (3.8)	4 (15.4)	2 (7.8)
Total	84 (31)	91 (33.7)	52 (19.2)	43 (15.9)	175 (64.8)	29 (10.7)	40 (14.8)	26 (9.6)