Table 1.
Baseline characteristics of those with and without evidence of prior hemorrhage (EOOH). Frequencies shown as number (%) unless indicated.
| Characteristics | EOOH Yes (n = 63) |
EOOH No (n = 912) |
Total (n = 975) |
P Value |
|---|---|---|---|---|
| Demographic | ||||
| Gender | 0.536 | |||
| Male | 33 (51) | 441 (48) | 474 (49) | |
| Female | 30 (49) | 471 (52) | 501 (51) | |
| Age at diagnosis, decades | 3.7 ± 1.8 | 3.8 ± 1.8 | 3.8 ± 1.8 | 0.842 |
| Ethnicity | 0.414 | |||
| Caucasian | 20 (36) | 408 (48) | 428 (47) | |
| Black | 4 (7) | 55 (6) | 59 (6) | |
| Hispanic | 19 (34) | 186 (22) | 205 (23) | |
| Asian | 6 (11) | 91 (11) | 97 (11) | |
| American Indian | 0 (0) | 9 (1) | 9 (1) | |
| Unknown | 8 (13) | 104 (12) | 112 (12) | |
| Mixed Race | 0 (0) | 2 (< 1) | 2 (< 1) | |
| Clinical | ||||
| Initial Presentation Hemorrhage | < 0.001 | |||
| Yes | 48 (76) | 383 (42) | 431 (44) | |
| No | 15 (24) | 529 (58) | 544 (56) | |
| Venous Drainage | 0.149 | |||
| Deep-only | 16 (27) | 166 (19) | 182 (19) | |
| Not Exclusively Deep | 44 (73) | 706 (81) | 750 (81) | |
| Eloquence | 0.927 | |||
| Yes | 33 (57) | 494 (58) | 527 (58) | |
| No | 25 (43) | 365 (42) | 390 (42) | |
| Deep Location | 0.767 | |||
| Yes | 11 (18) | 148 (17) | 159 (16) | |
| No | 51 (82) | 760 (83) | 811 (84) | |
| Aneurysm Associated Aneurysm | 0.161 | |||
| Yes | 14 (25) | 285 (34) | 299 (34) | |
| No | 42 (75) | 550 (66) | 592 (66) | |
| Embolization | 0.796 | |||
| Yes | 25 (40) | 347 (38) | 372 (38) | |
| No | 38 (60) | 565 (62) | 603 (62) | |
| Prior History of Hemorrhage | < 0.001 | |||
| Yes | 8 (13) | 7 (1) | 15 (2) | |
| No | 55 (88) | 905 (99) | 960 (98) | |
| Maximal AVM Size (cm) | 2.8 ± 1.5 | 2.9 ± 1.6 | 2.9 ± 1.6 | 0.520 |