Table 4 Patient characteristics
Patient characteristics | NET control1 | NET intervention2 | NET-Plus control 3 | NET-Plus intervention 4 |
|---|---|---|---|---|
N (%5)/mean (SD) | N (%5)/mean (SD) | N (%5)/mean (SD) | N (%5)/mean (SD) | |
Age | 50.9 (23.65) | 54.2 (24.93) | 53.5 (20.59) | 55.2 (21.17) |
Sex (male) | 476 (45%) | 390 (44%) | 105 (48%) | 51 (41%) |
After hours presentation | 748 (71%) | 653 (73%) | 149 (68%) | 90 (72%) |
Initial GCS 15 | 961 (92%) | 768 (86%) | 213 (98%) | 115 (92%) |
Initial GCS 14 | 89 (8%) | 125 (14%) | 5 (2%) | 10 (8%) |
Mechanism of injury | ||||
 Incidental fall | 492 (47%) | 481 (54%) | 113 (52%) | 65 (52%) |
 Road traffic | 58 (6%) | 51 (6%) | 11 (5%) | 10 (8%) |
 Violence / assault | 250 (24%) | 163 (18%) | 36 (17%) | 15 (12%) |
 Sport | 62 (6%) | 55 (6%) | 17 (8%) | 11 (9%) |
 Others | 179 (17%) | 137 (15%) | 41 (19%) | 24 (19%) |
 Unclear/not reported | 9 (0.9%) | 6 (0.7%) | 0 (0.0%) | 0 (0.0%) |
Presence other injuries (outside head) | 508 (48%) | 516 (58%) | 105 (48%) | 63 (50%) |
Alcohol/illicit drug involvement | 237 (23%) | 206 (23%) | 28 (13%) | 15 (12%) |
Pre-existing coagulopathy or anti-coagulant or anti-platelet drugs | 175 (17%) | 165 (18%) | 37 (17%) | 17 (14%) |
Known previous neurological condition | 202 (19%) | 191 (21%) | 26 (12%) | 13 (10%) |
Known neurosurgery | 14 (1.3%) | 18 (2.0%) | 2 (0.9%) | 3 (2.4%) |
Scalp laceration | 532 (51%) | 464 (52%) | 130 (60%) | 67 (54%) |
Scalp haematoma | 400 (38%) | 372 (42%) | 79 (36%) | 42 (34%) |
Clinical suspicion of skull fracture | 51 (4.9%) | 57 (6%) | 8 (3.7%) | 8 (6%) |
Loss of consciousness | 186 (18%) | 155 (17%) | 50 (23%) | 18 (14%) |
Vomiting | 56 (5%) | 49 (5%) | 12 (6%) | 4 (3.2%) |
Headache | 259 (25%) | 231 (26%) | 44 (20%) | 37 (30%) |
Post traumatic seizure | 3 (0.3%) | 6 (0.7%) | 0 (0.0%) | 2 (1.6%) |
Focal neurological deficit | 21 (2.0%) | 13 (1.5%) | 5 (2.3%) | 3 (2.4%) |