Table I.
Sociodemographic characteristics of the patients with or without pulmonary contusion.
| Characteristics | PC group, n=151a | Non-PC group, n=159a | P-value |
|---|---|---|---|
| Age, years | 42.2±15.9 | 39.0±15.1 | 0.066 |
| Sex (male/female) | 116/35 | 115/44 | 0.364 |
| Mechanism of injury | <0.001b | ||
| Motor vehicle crash | 61 | 44 | 0.018b |
| Bicycle | 22 | 21 | |
| Pedestrian | 10 | 35 | |
| Fall | 39 | 25 | |
| Explosion | 19 | 34 | |
| Comorbidities | 0.637 | ||
| Diabetes mellitus | 10 | 13 | |
| Hypertension | 15 | 11 | |
| Smoking | 20 | 27 | |
| COPD | 5 | 8 | |
| None | 101 | 100 | |
| Localization | |||
| Right | 23 | - | |
| Left | 18 | - | |
| Bilateral | 110 | - | |
| Other types of chest trauma | |||
| None | 84 | 126 | <0.001b |
| Pneumothorax/Haemothorax/ | 5/13/23/26 | 7/7/5/14 | |
| Haemopneumothorax/Rib fractures | |||
| Rib fractures, ≤3; >3 | 115/36 | 157/2 | <0.001b |
| ISS | 31.9±10.0 | 29.9±9.5 | 0.071 |
| ISS, ≤16; >16 | 15/136 | 25/134 | 0.129 |
| Polytrauma, yes/no | 129/22 | 120/39 | 0.027b |
| SaO2, % | 98.8±2.9 | 98.4±3.4 | 0.324 |
| Thoracic trauma treatment | <0.001 | ||
| Conservative | 110 | 146 | |
| Pleurocan drainage | 41 | 13 | |
| Complications | <0.001 | ||
| None | 56 | 140 | |
| Pneumonia | 49 | 14 | |
| Pleural effusion | 26 | 5 | |
| Pneumonia and pleural effusion | 20 | 0 | |
| ARDS, yes/no | 28/123 | 12/147 | 0.004c |
| Blood products, yes/no | 32/119 | 27/132 | 0.345 |
| ICU admission, yes/no | 20/131 | 9/150 | 0.022b |
| ICU stay, days | 5.2±1.7 | 3.8±1.4 | 0.040b |
| Mechanical ventilation, yes/no | 19/132 | 9/150 | 0.034b |
| Ventilatory, days | 4.2±1.6 | 2.9±0.9 | 0.029b |
| Hospital stay, days | 26.2±21.7 | 13.3±10.7 | <0.001d |
| Mortality, yes/no | 3/148 | 4/155 | 0.754 |
aMean ± standard deviation or n.
bP<0.05,
cP<0.01,
dP,0.001. PC, pulmonary contusion; COPD, chronic obstructive pulmonary disease; ISS, injury severity score; SaO2, arterial oxygen saturation; ARDS, acute respiratory distress syndrome; ICU, intensive care unit.