Table 1.
Demographic and baseline clinical data.
| Variable | (−) Vasospasm N=219 | (+) Vasospasm N=309 | Combined N=528 | P-value |
|---|---|---|---|---|
| Age | 56 (46–66) | 53 (45–61) | 55 (45–64) | 0.0031 |
| Sex | 0.362 | |||
| Male | 64 (29%) | 102 (33%) | 166 (31%) | |
| Female | 155 (71%) | 207 (67%) | 362 (69%) | |
| Race | 0.582 | |||
| Caucasian | 167 (76%) | 249 (81%) | 416 (79%) | |
| African American | 37 (17%) | 41 (13%) | 78 (15%) | |
| Other | 8 (4%) | 8 (3%) | 16 (3%) | |
| Missing | 7 (3%) | 11 (4%) | 18 (3%) | |
| Hypertension | 129 (59%) | 192 (62%) | 321 (61%) | 0.452 |
| Tobacco use | 118 (54%) | 185 (60%) | 303 (57%) | 0.172 |
| Aneurysm location | 0.0242 | |||
| ICA | 19 (9%) | 34 (11%) | 53 (10%) | |
| ACA | 12 (6%) | 18 (6%) | 30 (6%) | |
| MCA | 32 (15%) | 43 (14%) | 75 (14%) | |
| PCA | 5 (2%) | 3 (1%) | 8 (2%) | |
| ACOM | 63 (29%) | 96 (31%) | 159 (30%) | |
| PCOM | 63 (29%) | 53 (17%) | 116 (22%) | |
| Basilar Tip | 7 (3%) | 27 (9%) | 34 (6%) | |
| PICA | 7 (3%) | 19 (6%) | 26 (5%) | |
| Vertebral/Vertebrobasilar | 5 (2%) | 9 (3%) | 14 (3%) | |
| Other | 3 (1%) | 6 (2%) | 9 (2%) | |
| Missing | 3 (1%) | 1 (0%) | 4 (1%) | |
| Hunt Hess Grade | 0.0082 | |||
| 1 | 35 (16%) | 23 (7%) | 58 (11%) | |
| 2 | 68 (31%) | 82 (27%) | 150 (28%) | |
| 3 | 59 (27%) | 88 (28%) | 137 (28%) | |
| 4 | 33 (15%) | 73 (24%) | 106 (20%) | |
| 5 | 24 (11%) | 42 (14%) | 66 (12%) | |
| Missing | 0 (0%) | 1 (0%) | 1 (0%) | |
| Fisher Grade | 0.0012 | |||
| 1 | 15 (7%) | 6 (2%) | 21 (4%) | |
| 2 | 29 (13%) | 27 (9%) | 56 (11%) | |
| 3 | 47 (21%) | 48 (16%) | 95 (18%) | |
| 4 | 128 (58%) | 227 (73%) | 355 (67%) | |
| Missing | 0 (0%) | 1 (0%) | 1 (0%) | |
| Modified Fisher Grade | <0.0012 | |||
| 0 | 19 (9%) | 7 (2%) | 26 (5%) | |
| 1 | 32 (15%) | 31 (10%) | 63 (12%) | |
| 2 | 15 (7%) | 9 (3%) | 24 (5%) | |
| 3 | 73 (33%) | 92 (30%) | 165 (31%) | |
| 4 | 80 (37%) | 170 (55%) | 250 (47%) | |
| IPH | 61 (28%) | 80 (26%) | 141 (27%) | 0.612 |
| IVH | 106 (48%) | 199 (64%) | 305 (58%) | <0.0012 |
| SBP (n=522) | 142 (126–155) | 145 (130–165) | 144 (128–160) | 0.0781 |
| Admission Day | 0 (0–1) | 0 (0–1) | 0 (0–1) | 0.511 |
Continuous variables listed as median (IQR), categorical variables as n (%).
Tests used:
1
Wilcoxon test;
2
Pearson test.
ICA: internal carotid artery; ACA: anterior cerebral artery; MCA: middle cerebral artery; PCA: posterior cerebral artery; ACOM: anterior communicating artery; PCOM: posterior communicating artery; IPH: intraparenchymal hemorrhage; IVH: intraventricular hemorrhage; SBP: systolic blood pressure