Baseline characteristics of study population divided by transfer and surgery decisions
| Not transferred (n=1035) | Transferred, no surgery (n=65) | Transferred, surgery (n=75) | |
|---|---|---|---|
| Demographic | |||
| Age (years), median (IQR) | 75 (65 to 84) | 56 (45 to 66) | 55 (45 to 63) |
| Male, n (%) | 546 (52.8) | 34 (52%) | 39 (52%) |
| Referring hospital, ID (n) | 1 (4), 2 (94), 3 (87), 4 (78), 5 (65), 6 (47), 7 (58), 8 (43), 9 (129), 10 (88), 11 (101), 12 (33), 13 (95), 14 (113) | 1 (1), 2 (1), 3 (2), 4 (5), 5 (5), 6 (4), 7 (4), 8 (4), 9 (4), 10 (9), 11 (11), 12 (3), 13 (5), 14 (7) | 1 (0), 2 (2), 3 (10), 4 (0), 5 (17), 6 (8), 7 (2), 8 (4), 9 (5), 10 (6), 11 (9), 12 (2), 13 (5), 14 (5) |
| Clinical | |||
| Premorbid ASA grade (%) | 1 (14%), 2 (54%), 3 (23%), 4/5 (10%) | 1 (31%), 2 (58%), 3 (8%), 4/5 (3%) | 1 (33%), 2 (45%), 3 (17%), 4/5 (4%) |
| GCS, median (IQR) | 14 (7 to 15) | 14 (11 to 15) | 10 (7 to 13) |
| Imaging | |||
| Haematoma volume (mL), median (IQR) | 23.6 (6.8 to 63.4) | 26.9 (12.6 to 50.4) | 49.5 (23.2 to 87.6) |
| Deep, n (%) | 444 (43%) | 26 (40%) | 33 (44%) |
| Lobar, n (%) | 481 (46%) | 31 (48%) | 25 (33%) |
| Brainstem, n (%) | 74 (7%) | 1 (2%) | 10 (13%) |
| Cerebellum, n (%) | 36 (3%) | 7 (11%) | 7 (9%) |
| Hydrocephalus, n (%) | 503 (49%) | 23 (35%) | 49 (65%) |
| Intraventricular haemorrhage, n (%) | 383 (37%) | 19 (29%) | 44 (59%) |
Total number of patients in final analysis=1175.
ASA, American Society of Anesthesiologists grade; GCS, Glasgow Coma Scale.