Skip to main content

Table 2 ED and patient characteristics

From: Economic evaluation of the NET intervention versus guideline dissemination for management of mild head injury in hospital emergency departments

  N (%)/mean (SD) N (%)/mean (SD) N (%)/mean (SD) N (%)/mean (SD)
NET sample NET-Plus sample
Control 1 Intervention 2 Control 3 Intervention 4
ED structural characteristics
 Hospital type (private) 1 (6%) 1 (7%) 1 (7%) 1 (10%)
 Hospital type (public) 16 (94%) 13 (93%) 13 (93%) 9 (90%)
 Trauma unit 3 (18%) 4 (29%) 2 (14%) 3 (30%)
 Short stay unit 13 (76%) 10 (71%) 10 (71%) 6 (60%)
 Annual presentation rate 2012, mean (SD) 44,710 (22593) 41,255 (16512) 44,592 (25046) 36,852 (16913)
 Annual presentation rate 2012, median (IQR) 42,495 (34,313 to 46,690) 41,574 (27,075 to 55,667) 38,816 (32,833 to 52,963) 32,612 (25,646 to 47,189)
 Existence of protocol for mTBI 4 (24%) 3 (21%) 3 (21%) 3 (30%)
 NET-Plus 14 (82%) 13 (93%) 14 (100%) 10 (100%)
 Rurality (regional) 7 (41%) 5 (36%) 6 (43%) 4 (40%)
Patient characteristics
 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%)
 Mechanism of injury, road traffic 58 (6%) 51 (6%) 11 (5%) 10 (8%)
 Mechanism of injury, violence/assault 250 (24%) 163 (18%) 36 (17%) 15 (12%)
 Mechanism of injury, sport 62 (6%) 55 (6%) 17 (8%) 11 (9%)
 Mechanism of injury, others 179 (17%) 137 (15%) 41 (19%) 24 (19%)
 Mechanism of injury, 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%)
  1. 1Number of patients = 1050; numbers of clusters = 17
  2. 2Number of patients = 893; number of clusters = 14
  3. 3Number of patients = 218; number of clusters = 14
  4. 4Number of patients = 125; number of clusters = 10