Table 3.
Percentage of patients for each condition that was an occult injury and proportions who had interventions of mechanical ventilation, chest tube (both major interventions), and inpatient pain control or observation greater than 24 hours (minor intervention), with ORs for each injury comparing intervention for conditions found on chest CT only versus those found on chest radiography and chest CT.*
| Imaging That Identified Injury, No. (%) |
OR (95% CI) for Intervention for Injury Observed on CCT Only vs CXR and CCT |
||||
|---|---|---|---|---|---|
| Injury Type | Total Injured, No. (%) | CXR and CCT | CCT Only | OI, % | |
| Pulmonary contusion | 682 | 168 | 514 | 75.4 | |
| Mechanical ventilation, major | 51 (7.5) | 20 (11.9) | 31 (6.0) | 60.8 | 0.41 (0.22–0.80) |
| Pain control/observation >24 h, minor | 148 (21.7) | 46 (27.4) | 102 (19.8) | 68.9 | 0.59 (0.39–0.92) |
| No intervention | 483 (70.8) | 102 (60.7) | 381 (74.1) | 78.9 | 1.00 [Reference] |
| Pneumothorax | 597 | 192 | 405 | 67.8 | |
| Chest tube, major | 234 (39.2) | 116 (60.4) | 118 (29.1) | 50.4 | 0.33 (0.22–0.48) |
| Pain control/observation >24 h, minor | 95 (15.9) | 11 (5.7) | 84 (20.7) | 88.4 | 2.45 (1.20–5.39) |
| No intervention | 268 (44.9) | 65 (33.8) | 203 (50.1) | 75.7 | 1.00 [Reference] |
| Hemothorax | 230 | 46 | 184 | 80.0 | |
| Chest tube, major | 101 (43.9) | 26 (56.5) | 75 (40.8) | 74.3 | 0.65 (0.31–1.34) |
| Pain control/observation >24 h, minor | 26 (11.3) | 1 (2.2) | 25 (13.6) | 96.1 | 5.65 (0.81–244.2) |
| No intervention | 103 (44.8) | 19 (41.3) | 84 (45.7) | 81.6 | 1.00 [Reference] |
*
If a patient had both pneumothorax and hemothorax and received a chest tube, this was counted as a major intervention for both pneumothorax and hemothorax.