Table 2.
Clinical characteristics of patients with spontaneous subarachnoid haemorrhage who underwent surgical treatment, grouped by age.
| Characteristics | Age < 55 years (N = 127) |
Age ≥ 55 years (N = 105) |
Total (N = 232) |
p |
|---|---|---|---|---|
| Sex | <0.001 | |||
| Female, n (%) | 60 (47.2) | 83 (79.0) | 143 (61.6) | |
| Age, mean ± SD, years | 45.8 ± 6.1 | 65.7 ± 7.9 | 54.8 ± 12.1 | <0.001 |
| Height, mean ± SD, cm | 164.9 ± 8.3 | 157.4 ± 7.7 | 161.5 ± 8.9 | <0.001 |
| Weight, mean ± SD, kg | 66.5 ± 12.5 | 58.2 ± 9.2 | 62.7 ± 11.9 | <0.001 |
| BMI, mean ± SD, kg/m2 | 24.3 ± 3.4 | 23.4 ± 3.1 | 23.9 ± 3.3 | 0.041 |
| Hunt-Hess grade, n (%) | 0.066 | |||
| Grade 1 | 8 (6.3) | 3 (2.9) | 11 (4.7) | |
| Grade 2 | 62 (48.8) | 43 (41.0) | 105 (45.3) | |
| Grade 3 | 29 (22.8) | 42 (40.0) | 71 (30.6) | |
| Grade 4 | 26 (20.5) | 16 (15.2) | 42 (18.1) | |
| Grade 5 | 2 (1.6) | 1 (1.0) | 3 (1.3) | |
| Modified Fisher grade, n (%) | 0.024 | |||
| 1 | 36 (28.3) | 13 (12.4) | 49 (21.1) | |
| 2 | 21 (16.5) | 21 (20.0) | 42 (18.1) | |
| 3 | 25 (19.7) | 21 (20.0) | 46 (19.8) | |
| 4 | 45 (35.4) | 50 (47.6) | 95 (40.9) | |
| Location, n (%) | 0.167 | |||
| ACA | 49 (38.6) | 29 (27.6) | 78 (33.6) | |
| MCA | 43 (33.9) | 32 (30.5) | 75 (32.3) | |
| ICA | 10 (7.9) | 9 (8.6) | 19 (8.2) | |
| PCOM | 21 (16.5) | 30 (28.6) | 51 (22.0) | |
| VBA | 4 (3.1) | 5 (4.8) | 9 (3.9) | |
| IVH, n (%) | 0.054 | |||
| No | 61 (48.0) | 34 (32.4) | 95 (40.9) | |
| Focal | 39 (30.7) | 42 (40.0) | 81 (34.9) | |
| Pan | 27 (21.3) | 29 (27.6) | 56 (24.1) | |
| ICH, n (%) | 32 (25.2) | 31 (29.5) | 63 (27.2) | 0.556 |
| Operation type, n (%) | 0.448 | |||
| Craniotomy | 107 (84.3) | 93 (88.6) | 200 (86.2) | |
| Craniectomy | 20 (15.7) | 12 (11.4) | 32 (13.8) | |
| Fenestration of the lamina terminalis, n (%) | 52 (40.9) | 35 (33.3) | 87 (37.5) | 0.291 |
| Vasospasm, n (%) | 26 (20.5) | 21 (20.0) | 47 (20.3) | 1.000 |
| Ventriculo-peritoneal shunt, n (%) | 22 (17.3) | 29 (27.6) | 51 (22.0) | 0.084 |
SD, standard deviation; BMI, body mass index; ACA, anterior cerebral artery; MCA, middle cerebral artery; ICA, internal carotid artery; PCOM, posterior communicating artery; VBA, vertebrobasilar artery; IVH, intraventricular haemorrhage; ICH, intracerebral haemorrhage.