Comparison of variables between survival status
| Alive (n=71) | Dead (n=13) | P value | |
| Gender, n (%) | 0.5836 | ||
| Female | 6 (8.5) | 0 (0) | |
| Male | 65 (91.6) | 13 (100) | |
| Injury type, n (%) | 0.5288 | ||
| Blunt | 50 (70.4) | 8 (61.5) | |
| Penetrating | 21 (29.6) | 5 (38.5) | |
| Arrival mode, n (%) | 0.7708 | ||
| Ground transport | 40 (56.3) | 8 (61.5) | |
| Air transport | 31 (43.7) | 5 (38.5) | |
| Tube thoracostomy, n (%) | 0.0648 | ||
| Yes | 55 (77.5) | 13 (100) | |
| No | 16 (22.5) | 0 (0) | |
| CT findings, n (%) | 0.4994 | ||
| Proper insertion | 21 (29.6) | 2 (15.4) | |
| Improper insertion | 50 (70.4) | 11 (84.6) | |
| Location of improper insertion, n (%) | N/A | ||
| Spleen | 1 (2)* | 0 (0)* | |
| Liver | 2 (4)* | 0 (0)* | |
| Subdiaphragmatic | 2 (4)* | 0 (0)* | |
| Subcutaneous extrathoracic | 44 (88)* | 11 (100)* | |
| Anterior mediastinum | 1 (2) | 0 (0) | |
| Age | 36.14±13.96 | 52±20.29 | 0.0008 |
| ICU LOS | 5 (2, 14) | 1 (0, 7) | 0.1255 |
| Hospital LOS | 7 (4, 16) | 3 (1, 6) | 0.0638 |
| BMI | 29.07±5.3 | 29.21±5.91 | 0.9336 |
| ISS | 27.51±9.61 | 34.92±14.23 | 0.0941 |
These data excluded those 18 dead on arrival.
*Percentage was calculated using the denominator of improper insertion in each group.
BMI, body mass index; ICU, intensive care unit; ISS, Injury Severity Score; LOS, length of stay; N/A, not applicable.