Baseline and Preflight Characteristics for TBI without Polytrauma and Polytrauma Patients, Grouped by Time to Transport
| . | TBI without polytrauma (n = 179) . | Polytrauma (n = 259) . | ||||||
|---|---|---|---|---|---|---|---|---|
| Variable . | ≤1 day (n = 84) . | 2 days (n = 61) . | ≥3 days (n = 34) . | P . | ≤1 day (n = 81) . | 2 days (n = 102) . | ≥3 days (n = 76) . | P . |
| Age | 24.0 [21.0-29.8] | 25.0 [22.0-29.0] | 25.5 [21.0-29.0] | 0.4468 | 25.0 [22.0-30.0] | 25.0 [22.0-30.0] | 23.0 [21.0-29.0] | 0.1837 |
| Male gender | 96.4 | 100 | 97.1 | 0.4040 | 97.5 | 96.1 | 98.7 | 0.6415 |
| Injury severity score | 21.0 [16.0-27.0] | 21.0 [16.5-26.0] | 19.5 [16.8-26.0] | 0.8879 | 33.0 [26.0-41.0] | 34.0 [27.0-42.3] | 34.0 [29.0-41.0] | 0.3128 |
| Gunshot wound | 29.8 | 23 | 17.6 | 0.3459 | 9.9 | 2 | 7.9 | 0.0663 |
| Blast injury | 53.6 | 62.3 | 44.1 | 0.2231 | 76.5 | 87.3 | 76.3 | 0.0978 |
| Penetrating injury | 63.1 | 70.5 | 44.1 | 0.0383* | 63 | 69.6 | 68.4 | 0.6129 |
| Open head injury | 39.3 | 34.4 | 11.8 | 0.0137* | 11.1 | 11.8 | 9.2 | 0.8498 |
| Head AIS >3 | 66.7 | 72.1 | 67.6 | 0.7737 | 54.3 | 51 | 57.9 | 0.6565 |
| Intracranial hemorrhage | 66.7 | 49.2 | 58.8 | 0.1066 | 42 | 37.3 | 36.8 | 0.7534 |
| Preflight GCS ≤8 | 45.2 | 41 | 14.7 | 0.0070* | 56.8 | 61.8 | 59.2 | 0.7921 |
| Preflight interventions | ||||||||
| Supplementary O2 | 11.9 | 16.4 | 32.4 | 0.0284* | 12.3 | 13.7 | 13.2 | 0.9630 |
| Mechanical ventilation | 70.2 | 59 | 35.3 | 0.0021* | 79 | 80.4 | 81.6 | 0.9212 |
| Surgery: abdomen | 1.2 | 8.2 | 2.9 | 0.0834 | 30.9 | 37.3 | 38.2 | 0.5679 |
| Surgery: extremities | 17.9 | 24.6 | 20.6 | 0.6135 | 60.5 | 73.5 | 73.7 | 0.1050 |
| Surgery: head | 73.8 | 65.6 | 61.8 | 0.3573 | 50.6 | 48 | 44.7 | 0.7614 |
| Blood products | 34.5 | 29.5 | 35.3 | 0.7766 | 46.9 | 68.6 | 68.4 | 0.0040* |
| Massive transfusion | 2.4 | 0 | 2.9 | 0.4249 | 9.9 | 15.7 | 13.2 | 0.5126 |
| . | TBI without polytrauma (n = 179) . | Polytrauma (n = 259) . | ||||||
|---|---|---|---|---|---|---|---|---|
| Variable . | ≤1 day (n = 84) . | 2 days (n = 61) . | ≥3 days (n = 34) . | P . | ≤1 day (n = 81) . | 2 days (n = 102) . | ≥3 days (n = 76) . | P . |
| Age | 24.0 [21.0-29.8] | 25.0 [22.0-29.0] | 25.5 [21.0-29.0] | 0.4468 | 25.0 [22.0-30.0] | 25.0 [22.0-30.0] | 23.0 [21.0-29.0] | 0.1837 |
| Male gender | 96.4 | 100 | 97.1 | 0.4040 | 97.5 | 96.1 | 98.7 | 0.6415 |
| Injury severity score | 21.0 [16.0-27.0] | 21.0 [16.5-26.0] | 19.5 [16.8-26.0] | 0.8879 | 33.0 [26.0-41.0] | 34.0 [27.0-42.3] | 34.0 [29.0-41.0] | 0.3128 |
| Gunshot wound | 29.8 | 23 | 17.6 | 0.3459 | 9.9 | 2 | 7.9 | 0.0663 |
| Blast injury | 53.6 | 62.3 | 44.1 | 0.2231 | 76.5 | 87.3 | 76.3 | 0.0978 |
| Penetrating injury | 63.1 | 70.5 | 44.1 | 0.0383* | 63 | 69.6 | 68.4 | 0.6129 |
| Open head injury | 39.3 | 34.4 | 11.8 | 0.0137* | 11.1 | 11.8 | 9.2 | 0.8498 |
| Head AIS >3 | 66.7 | 72.1 | 67.6 | 0.7737 | 54.3 | 51 | 57.9 | 0.6565 |
| Intracranial hemorrhage | 66.7 | 49.2 | 58.8 | 0.1066 | 42 | 37.3 | 36.8 | 0.7534 |
| Preflight GCS ≤8 | 45.2 | 41 | 14.7 | 0.0070* | 56.8 | 61.8 | 59.2 | 0.7921 |
| Preflight interventions | ||||||||
| Supplementary O2 | 11.9 | 16.4 | 32.4 | 0.0284* | 12.3 | 13.7 | 13.2 | 0.9630 |
| Mechanical ventilation | 70.2 | 59 | 35.3 | 0.0021* | 79 | 80.4 | 81.6 | 0.9212 |
| Surgery: abdomen | 1.2 | 8.2 | 2.9 | 0.0834 | 30.9 | 37.3 | 38.2 | 0.5679 |
| Surgery: extremities | 17.9 | 24.6 | 20.6 | 0.6135 | 60.5 | 73.5 | 73.7 | 0.1050 |
| Surgery: head | 73.8 | 65.6 | 61.8 | 0.3573 | 50.6 | 48 | 44.7 | 0.7614 |
| Blood products | 34.5 | 29.5 | 35.3 | 0.7766 | 46.9 | 68.6 | 68.4 | 0.0040* |
| Massive transfusion | 2.4 | 0 | 2.9 | 0.4249 | 9.9 | 15.7 | 13.2 | 0.5126 |
Values given are median [interquartile range] or column percent.
Comparisons are significant at P < 0.05.
Baseline and Preflight Characteristics for TBI without Polytrauma and Polytrauma Patients, Grouped by Time to Transport
| . | TBI without polytrauma (n = 179) . | Polytrauma (n = 259) . | ||||||
|---|---|---|---|---|---|---|---|---|
| Variable . | ≤1 day (n = 84) . | 2 days (n = 61) . | ≥3 days (n = 34) . | P . | ≤1 day (n = 81) . | 2 days (n = 102) . | ≥3 days (n = 76) . | P . |
| Age | 24.0 [21.0-29.8] | 25.0 [22.0-29.0] | 25.5 [21.0-29.0] | 0.4468 | 25.0 [22.0-30.0] | 25.0 [22.0-30.0] | 23.0 [21.0-29.0] | 0.1837 |
| Male gender | 96.4 | 100 | 97.1 | 0.4040 | 97.5 | 96.1 | 98.7 | 0.6415 |
| Injury severity score | 21.0 [16.0-27.0] | 21.0 [16.5-26.0] | 19.5 [16.8-26.0] | 0.8879 | 33.0 [26.0-41.0] | 34.0 [27.0-42.3] | 34.0 [29.0-41.0] | 0.3128 |
| Gunshot wound | 29.8 | 23 | 17.6 | 0.3459 | 9.9 | 2 | 7.9 | 0.0663 |
| Blast injury | 53.6 | 62.3 | 44.1 | 0.2231 | 76.5 | 87.3 | 76.3 | 0.0978 |
| Penetrating injury | 63.1 | 70.5 | 44.1 | 0.0383* | 63 | 69.6 | 68.4 | 0.6129 |
| Open head injury | 39.3 | 34.4 | 11.8 | 0.0137* | 11.1 | 11.8 | 9.2 | 0.8498 |
| Head AIS >3 | 66.7 | 72.1 | 67.6 | 0.7737 | 54.3 | 51 | 57.9 | 0.6565 |
| Intracranial hemorrhage | 66.7 | 49.2 | 58.8 | 0.1066 | 42 | 37.3 | 36.8 | 0.7534 |
| Preflight GCS ≤8 | 45.2 | 41 | 14.7 | 0.0070* | 56.8 | 61.8 | 59.2 | 0.7921 |
| Preflight interventions | ||||||||
| Supplementary O2 | 11.9 | 16.4 | 32.4 | 0.0284* | 12.3 | 13.7 | 13.2 | 0.9630 |
| Mechanical ventilation | 70.2 | 59 | 35.3 | 0.0021* | 79 | 80.4 | 81.6 | 0.9212 |
| Surgery: abdomen | 1.2 | 8.2 | 2.9 | 0.0834 | 30.9 | 37.3 | 38.2 | 0.5679 |
| Surgery: extremities | 17.9 | 24.6 | 20.6 | 0.6135 | 60.5 | 73.5 | 73.7 | 0.1050 |
| Surgery: head | 73.8 | 65.6 | 61.8 | 0.3573 | 50.6 | 48 | 44.7 | 0.7614 |
| Blood products | 34.5 | 29.5 | 35.3 | 0.7766 | 46.9 | 68.6 | 68.4 | 0.0040* |
| Massive transfusion | 2.4 | 0 | 2.9 | 0.4249 | 9.9 | 15.7 | 13.2 | 0.5126 |
| . | TBI without polytrauma (n = 179) . | Polytrauma (n = 259) . | ||||||
|---|---|---|---|---|---|---|---|---|
| Variable . | ≤1 day (n = 84) . | 2 days (n = 61) . | ≥3 days (n = 34) . | P . | ≤1 day (n = 81) . | 2 days (n = 102) . | ≥3 days (n = 76) . | P . |
| Age | 24.0 [21.0-29.8] | 25.0 [22.0-29.0] | 25.5 [21.0-29.0] | 0.4468 | 25.0 [22.0-30.0] | 25.0 [22.0-30.0] | 23.0 [21.0-29.0] | 0.1837 |
| Male gender | 96.4 | 100 | 97.1 | 0.4040 | 97.5 | 96.1 | 98.7 | 0.6415 |
| Injury severity score | 21.0 [16.0-27.0] | 21.0 [16.5-26.0] | 19.5 [16.8-26.0] | 0.8879 | 33.0 [26.0-41.0] | 34.0 [27.0-42.3] | 34.0 [29.0-41.0] | 0.3128 |
| Gunshot wound | 29.8 | 23 | 17.6 | 0.3459 | 9.9 | 2 | 7.9 | 0.0663 |
| Blast injury | 53.6 | 62.3 | 44.1 | 0.2231 | 76.5 | 87.3 | 76.3 | 0.0978 |
| Penetrating injury | 63.1 | 70.5 | 44.1 | 0.0383* | 63 | 69.6 | 68.4 | 0.6129 |
| Open head injury | 39.3 | 34.4 | 11.8 | 0.0137* | 11.1 | 11.8 | 9.2 | 0.8498 |
| Head AIS >3 | 66.7 | 72.1 | 67.6 | 0.7737 | 54.3 | 51 | 57.9 | 0.6565 |
| Intracranial hemorrhage | 66.7 | 49.2 | 58.8 | 0.1066 | 42 | 37.3 | 36.8 | 0.7534 |
| Preflight GCS ≤8 | 45.2 | 41 | 14.7 | 0.0070* | 56.8 | 61.8 | 59.2 | 0.7921 |
| Preflight interventions | ||||||||
| Supplementary O2 | 11.9 | 16.4 | 32.4 | 0.0284* | 12.3 | 13.7 | 13.2 | 0.9630 |
| Mechanical ventilation | 70.2 | 59 | 35.3 | 0.0021* | 79 | 80.4 | 81.6 | 0.9212 |
| Surgery: abdomen | 1.2 | 8.2 | 2.9 | 0.0834 | 30.9 | 37.3 | 38.2 | 0.5679 |
| Surgery: extremities | 17.9 | 24.6 | 20.6 | 0.6135 | 60.5 | 73.5 | 73.7 | 0.1050 |
| Surgery: head | 73.8 | 65.6 | 61.8 | 0.3573 | 50.6 | 48 | 44.7 | 0.7614 |
| Blood products | 34.5 | 29.5 | 35.3 | 0.7766 | 46.9 | 68.6 | 68.4 | 0.0040* |
| Massive transfusion | 2.4 | 0 | 2.9 | 0.4249 | 9.9 | 15.7 | 13.2 | 0.5126 |
Values given are median [interquartile range] or column percent.
Comparisons are significant at P < 0.05.
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