Table 1 Baseline characteristics
Characteristic | EMS, N = 612a | Police, N = 10a | Private vehicle, N = 27a | Walking, N = 8a |
|---|---|---|---|---|
Age (years) | 30 (22,45) | 23 (20.5, 29) | 26 (22, 28.5) | 25.5 (23,29) |
(Missing) | 1 | 0 | 0 | 0 |
Sex | ||||
Female | 62/612 (10%) | 0/10 (0%) | 1/27 (3.7%) | 0/8 (0%) |
Male | 550/612 (90%) | 10/10 (100%) | 26/27 (96%) | 8/8 (100%) |
Unknown | 0/612 (0%) | 0/10 (0%) | 0/27 (0%) | 0/8 (0%) |
Injury severity score | 25 (17, 29) | 25 (24.25, 28.25) | 20 (16, 34.5) | 18 (17, 19.5) |
Injury mechanism | ||||
GSW | 198/612 (32%) | 8/10 (80%) | 16/27 (59%) | 2/8 (25%) |
SW | 369/612 (60%) | 2/10 (20%) | 11/27 (41%) | 5/8 (62%) |
Other | 45/612 (7.4%) | 0/10 (0%) | 0/27 (0%) | 1/8 (12%) |
ED GCS score | 15 (14, 15) | 11.5 (3, 15) | 15 (12.5, 15) | 15 (14.75, 15) |
First ED blood pressure (mmHg) | 120 (90, 140) | 110 (40, 146) | 124 (94, 139) | 144.5 (131.25, 160.25) |
(Missing) | 118 | 3 | 6 | 0 |
First ED blood pressure (RTS) | ||||
No carotid | 71/101 (70%) | 1/2 (50%) | 5/6 (83%) | 0/0 (NA%) |
Only carotid | 8/101 (7.9%) | 1/2 (50%) | 0/6 (0%) | 0/0 (NA%) |
Femoral | 4/101 (4.0%) | 0/2 (0%) | 1/6 (17%) | 0/0 (NA%) |
Weak radial | 7/101 (6.9%) | 0/2 (0%) | 0/6 (0%) | 0/0 (NA%) |
Clear radial | 11/101 (11%) | 0/2 (0%) | 0/6 (0%) | 0/0 (NA%) |
(Missing) | 494 | 7 | 21 | 8 |
Time spent at scene (mins) | 12 (8, 19) | NA (NA, NA) | NA (NA, NA) | NA (NA, NA) |
(Missing) | 0 | 10 | 24 | 8 |
Time spent in transit from scene to hospital (mins) | 12 (7, 19) | NA (NA, NA) | NA (NA, NA) | NA (NA, NA) |
(Missing) | 4 | 10 | 27 | 8 |
First respiratory rate (/min) | ||||
0 | 56/426 (13%) | 3/9 (33%) | 5/21 (24%) | 0/8 (0%) |
1–9 | 3/426 (0.7%) | 0/9 (0%) | 0/21 (0%) | 0/8 (0%) |
10–29 | 307/426 (72%) | 6/9 (67%) | 15/21 (71%) | 8/8 (100%) |
> 29 | 60/426 (14%) | 0/9 (0%) | 1/21 (4.8%) | 0/8 (0%) |
(Missing) | 186 | 1 | 6 | 0 |