Table 1.
Injury characteristics for harmonize study cohort patients stratified by blunt and penetrating mechanism of injury; caption (Abbreviations- interquartile range, IQR; body mass index, BMI; injury severity score, ISS; abbreviated injury score, AIS; Glasgow coma scale, GCS)
| Blunt (n= 465) | Penetrating (n=161) | p-value | |
|---|---|---|---|
| Classification of Mechanism of Injury | |||
| Motor Vehicle | 247 (53.1%) | ||
| Motorcycle | 85 (18.3%) | ||
| Pedestrian/cyclist | 44 (9.5%) | ||
| Fall | 38 (8.2%) | ||
| Other | 51 (11.0%) | ||
| Firearm | 77 (47.8%) | ||
| Stabbing | 69 (41.0%) | ||
| Other | 15 (9.3%) | ||
| Full Cohort, n (%) | 465 (74.3%) | 161 (25.7%) | |
| COMBAT | 59 (47.2%) | 66 (52.8%) | |
| PAMPer | 406 (81.0%) | 95 (19.0%) | |
| Age, median (IQR) | 45 (28, 61) | 35 (26, 49) | <0.001 |
| Male, n (%) | 326 (70.1%) | 141 (87.6%) | <0.001 |
| Race, n (%) | |||
| White | 418 (89.9%) | 108 (68.4%) | <0.001 |
| Black | 28 (6.0%) | 45 (28.5%) | |
| Other/Unknown | 19 (4.1%) | 5 (3.1%) | |
| Hispanic, n (%) | 33 (7.5%) | 31 (20.5%) | <0.001 |
| BMI, mean (SD) | 30.2 (11.9) | 27.7 (6.8) | 0.040 |
| ISS, median (IQR) | 24 (17, 34) | 14 (6, 25) | <0.001 |
| AIS ≥3, n (%) | |||
| Head | 203 (43.7%) | 15 (9.3%) | <0.001 |
| Face | 16 (3.4%) | 6 (3.7%) | 0.870 |
| Chest | 271 (58.3%) | 54 (33.5%) | <0.001 |
| Abdomen | 133 (28.6%) | 38 (23.6%) | 0.220 |
| Extremities | 168 (36.1%) | 25 (15.5%) | <0.001 |
| Skin | 8 (1.7%) | 9 (5.6%) | 0.009 |
| Prehospital Interval | |||
| Minutes, median (IQR) | 39.3 (28.4, 50.2) | 30.6 (19.7, 43.7) | <0.001 |
| ≤20 Minutes, n (%) | 54 (11.6%) | 45 (28.0%) | <0.001 |
| Arrival Vital Signs, median (IQR) | |||
| Heart Rate | 107 (89, 124) | 105 (91 121) | 0.500 |
| Systolic Blood Pressure | 98 (78, 119) | 106 (80, 128) | 0.034 |
| GCS | 3 (3, 15) | 14 (3, 15) | 0.004 |
| Mortality 24hr (%) | 18.7% | 11.8% | <0.001 |
| Mortality 28-day (%) | 29.2% | 12.4% | <0.001 |