Variables | N (%) | Transfused with RBC n (%) |
---|---|---|
Total | 7062 (100.0) | 1991 (28.2) |
Age | ||
18–55 | 4336 (61.4) | 1346 (67.6) |
56–65 | 823 (11.7) | 252 (12.7) |
66–75 | 700 (9.9) | 174 (8.7) |
≥75 | 1203 (17.0) | 219 (11.0) |
Male gender | 5168 (73.2) | 1368 (68.7) |
GCS on admission | ||
Moderate (9–12) | 1509 (21.4) | 278 (14.0) |
Severe (3–8) | 1788 (25.3) | 505 (25.4) |
Missing | 3765 (53.3) | 1208 (60.7) |
Intubated on arrival | 3899 (55.2) | 1249 (62.7) |
Extracerebral trauma of serious or greater severity | 3339 (47.3) | 1417 (71.2) |
Serious injury (AIS≥3) by body region | ||
Head | 6682 (94.6) | 1839 (92.4) |
Face and neck | 598 (8.5) | 237 (11.9) |
Thorax and abdomen | 2512 (35.6) | 1140 (57.3) |
Spinal | 655 (9.3) | 286 (14.4) |
Upper extremities | 479 (6.8) | 257 (12.9) |
Lower extremities | 1001 (14.2) | 635 (31.9) |
Other | 43 (0.6) | 20 (1.0) |
Invasive interventions* | 4201 (59.5) | 1695 (85.1) |
Number of comorbidities† | ||
0 | 5505 (78.0) | 1543 (77.5) |
1 | 1214 (17.2) | 334 (16.8) |
≥2 | 343 (4.9) | 114 (5.7) |
Other specific comorbidities‡ | ||
Ischaemic heart disease | 172 (2.4) | 45 (2.3) |
Cerebrovascular disease | 114 (1.6) | 39 (2.0) |
Anaemia | 314 (4.5) | 218 (10.9) |
Coagulopathy | 89 (1.3) | 53 (2.7) |
Sepsis | 79 (1.1) | 39 (2.0) |
Hypovolemic shock | 554 (7.8) | 276 (13.9) |
Bleeding/haemorrhage | 1701 (24.1) | 611 (30.7) |
Direct admission | 3586 (50.8) | 1030 (51.7) |
Mechanism of injury | ||
MVC | 3162 (44.8) | 1237 (62.1) |
Fall | 2828 (40.1) | 543 (27.3) |
Other | 1072 (15.2) | 211 (10.6) |
*See online supplementary appendix C for specific codes.
†Based on previous publication,33 see online supplementary appendix B.
‡For specific comorbidities, the total of percentages may exceed 100% since they are not mutually exclusive.
AIS, Abbreviated Injury Severity Score; GCS, Glasgow Coma Scale; MVC, motor vehicle collision; RBC, red blood cell.