Table 2.
Patient characteristics by prehospital blood received
| Received Prehospital Blood | |||||
|---|---|---|---|---|---|
|
| |||||
| Overall (N = 1058) |
No (N = 916) |
Yes (N = 142) |
P-value1 | ||
| Age (yrs) | Median (P25,P75) | 38 (25,55) | 38 (25,55) | 41 (26,57) | 0.63 |
|
| |||||
| Gender | Male N (%) | 751 (71.0) | 650 (71.0) | 101 (71.1) | 0.97 |
|
| |||||
| Race Group | White N (%) | 770 (72.8) | 680 (74.2) | 90 (63.4) | <.01 |
|
| |||||
| Other N (%) | 164 (15.5) | 128 (14.0) | 36 (25.4) | ||
|
| |||||
| Black N (%) | 124 (11.7) | 108 (11.8) | 16 (11.3) | ||
|
| |||||
| Systolic (mmHg) Blood Pressure | Median (P25,P75) | 126 (105,146) | 129 (110,149) | 98 (80,124) | <.01 |
| Diastolic (mmHg) Blood Pressure | Median (P25,P75) | 78 (62,91) | 79 (65,92) | 62 (44,88) | <.01 |
|
| |||||
| Pulse | Median (P25,P75) | 100 (83.5,122) | 99 (83,121) | 107 (85,128) | 0.04 |
|
| |||||
| GCS Score Total - Prehospital | Median (P25,P75) | 12 (3,15) | 11.5 (3,15) | 13 (3,15) | 0.88 |
|
| |||||
| Injury Severity Score (ISS) | Median (P25,P75) | 17 (9,29) | 17 (6,27) | 25 (13,34) | <.01 |
|
| |||||
| ANY Penetrating Injury | Yes N (%) | 210 (19.8) | 164 (17.9) | 46 (32.4) | <.01 |
|
| |||||
| Prehospital Lifesaving Interventions | Yes N (%) | 632 (59.7) | 525 (57.3) | 107 (75.4) | <.01 |
|
| |||||
| Air Team Call Time to ED Arrival (minutes) | Median (P25,P75) | 58 (48,73) | 58 (48,74) | 55 (48,68) | 0.04 |
| Air Team Departure from Scene to ED Arrival (minutes) | Median (P25,P75) | 19 (15,27) | 19 (15,27) | 18 (14,24) | 0.14 |
|
| |||||
| Satisfied More Than One Highest Risk Criteria | Yes N (%) | 362 (34.2) | 277 (30.2) | 85 (59.9) | <.01 |
|
| |||||
| Bleeding Source Identified Prehospital | Yes N (%) | 549 (51.9) | 431 (47.1) | 118 (83.1) | <.01 |
|
| |||||
| 30-Day Status | Deceased N (%) | 176 (16.6) | 140 (15.3) | 36 (25.4) | <.01 |
|
| |||||
| 24-Hour Status | Deceased N (%) | 116 (11.0) | 89 (9.7) | 27 (19.0) | <.01 |
|
| |||||
| 3-Hour Status | Deceased N (%) | 66 (6.2) | 43 (4.7) | 23 (16.2) | <.01 |
|
| |||||
| Time to Death from ED Arrival (hours) | Median (P25,P75) | 8.3 (0.8,45.8) | 13.2 (1.1,50.5) | 2.2 (0.2,23.7) | 0.03 |
1
The Wilcoxon rank sum and χ2 tests were used to compare groups for continuous and categorical characteristics, respectively