Table 2.
Clinical variables for intubated survivors and intubated nonsurvivors.
| Parameter | Survivors | Non-survivors | Difference (p-value) | ||
|---|---|---|---|---|---|
| N | Mean (sd) or N (%) | N | Mean (sd) or N (%) | ||
| Demographics | |||||
| Age | 324 | 38.6 (16.7) | 434 | 44.7 (20.3) | 6.1 (<0.0001) |
| Male n(%) | 322 | 242 (75.2) | 434 | 327 (75.4) | 0.2 (0.95) |
| Mechanism n (%) | |||||
| Blunt | 324 | 278 (85.8) | 434 | 308 (71.0) | −14.8 (<0.0001) |
| Penetrating | 324 | 32 (9.9) | 434 | 110 (25.4) | 15.5 (<0.0001) |
| Other | 324 | 14 (4.3) | 434 | 16 (3.7) | −0.6 (0.66) |
| GCS | |||||
| Initial | 322 | 5.1 (2.4) | 429 | 3.6 (1.6) | −1.5 (<0.0001) |
| Worst | 324 | 4.1 (1.7) | 434 | 3.3 (1.0) | −0.8 (<0.0001) |
| Systolic BP (mmHg) | |||||
| Initial | 288 | 127.4 (34.2) | 287 | 82.2 (62.5) | −45.2 (<0.0001) |
| Lowest | 299 | 117.9 (31.7) | 289 | 75.7 (59.6) | −42.2 (<0.0001) |
| Respiratory Rate (breaths/min) | |||||
| Initial | 298 | 17.1 (9.1) | 345 | 9.6 (9.8) | −7.5 (<0.0001) |
| Lowest | 305 | 14.2 (9.0) | 351 | 7.1 (8.3) | −7.1 (<0.0001) |
| Highest | 305 | 18.9 (9.0) | 351 | 11.5 (10.6) | −7.4 (<0.0001) |
| Pulse (beats/min) | |||||
| Initial | 308 | 96.7 (26.7) | 367 | 68.8 (46.6) | −27.9 (<0.0001) |
| Lowest | 316 | 88.8 (27.2) | 376 | 57.5 (46.2) | −31.3 (<0.0001) |
| Highest | 316 | 104.6 (26.3) | 375 | 83.2 (49.2) | −21.3 (<0.0001) |
| RTS | |||||
| Initial | 270 | 4.9 (1.2) | 261 | 2.8 (2.1) | −2.1 (<0.0001) |
| Prehospital times (min) | |||||
| Response | 304 | 6.5 (4.5) | 418 | 6.4 (4.2) | −0.1 (0.76) |
| Scene | 298 | 27.7 (14.4) | 407 | 23.4 (13.1) | −4.2 (<0.0001) |
| Transport | 308 | 15.4 (14.0) | 378 | 11.9 (9.4) | −3.5 (0.0002) |
| Neuromuscular blocking agents used (%) | |||||
| Yes | 324 | 131 (40.4) | 434 | 50 (11.5) | −28.9 (<0.0001) |