Table 1.
Demographics, patient characteristics, and subarachnoid hemorrhage severity stratified by Hp phenotype
| Variable | Overall (n = 74) | Hp1-1 (n = 11) | Hp2-1 (n = 39) | Hp2-2 (n = 24) | Hp1-1/2–1 (n = 50) | P value* |
| Age, mean ± SD | 54.7 ± 15.3 | 54.7 ± 18.0 | 56.6 ± 14.0 | 51.6 ± 16.3 | 56.2 ± 14.7 | 0.254 |
| Sex, n (%) | ||||||
| Female | 54 (73.0) | 9 (81.8) | 28 (71.8) | 17 (70.8) | 37 (74.0) | 0.785 |
| Male | 20 (27.0) | 2 (18.2) | 11 (28.2) | 7 (29.2) | 13 (26.0) | |
| Race, n (%) | ||||||
| Black | 14 (18.9) | 3 (27.3) | 9 (23.1) | 2 (8.3) | 12 (24.0) | 0.223 |
| White | 57 (77.0) | 7 (63.6) | 29 (74.4) | 21 (87.5) | 36 (72.0) | |
| Hispanic | 3 (4.1) | 1 (9.1) | 1 (2.6) | 1 (4.2) | 2 (4.0) | |
| GCS, mean ± SD | 12.0 ± 3.3 | 9.4 ± 4.1 | 12.3 ± 3.1 | 12.8 ± 2.7 | 11.7 ± 3.5 | 0.169 |
| WFNS, mean ± SD | 2.5 ± 1.3 | 3.5 ± 1.2 | 2.4 ± 1.2 | 2.3 ± 1.3 | 2.6 ± 1.3 | 0.363 |
| Fisher grade, n (%) | ||||||
| 2 | 7 (9.5) | 0 (0.0) | 3 (7.7) | 4 (16.7) | 3 (6.0) | 0.256 |
| 3 | 24 (32.4) | 4 (36.4) | 14 (35.9) | 6 (25.0) | 18 (36.0) | |
| 3+4 | 43 (58.1) | 7 (63.6) | 22 (56.4) | 14 (58.3) | 29 (58.0) | |
| Hunt–Hess grade, mean ± SD | 2.8 ± 0.9 | 3.5 ± 0.9 | 2.7 ± 0.9 | 2.6 ± 0.9 | 2.9 ± 1.0 | 0.197 |
| Aneurysm size (mm), mean ± SD | 6.3 ± 3.1 | 5.4 ± 2.6 | 6.4 ± 2.8 | 6.7 ± 3.9 | 6.2 ± 2.7 | 0.903 |
| Treatment, n (%) | ||||||
| Clipping | 41 (55.4) | 8 (72.7) | 16 (41.0) | 17 (70.8) | 24 (48.0) | 0.083 |
| Coiling | 33 (44.6) | 3 (27.3) | 23 (59.0) | 7 (29.2) | 26 (52.0) |
*
For comparison between Hp2-2 and Hp1-1/2-1.