Table 3.
Injuries seen on NEXUS Chest imaging studies
| Injury | CXR Derivation N = 2628 |
CXR Validation N = 9905 |
CT Derivation N = 6002 |
CT Validation N = 5475 |
TOTAL N = 24,010 |
|---|---|---|---|---|---|
| Patients with Injury (%) | 271 (10.3) | 1478 (14.9) | 777 (12.9) | 811 (14.8) | 3,337 (13.9) |
| ≥2 Rib fractures | 199 (7.6) | 996 (10.1) | 407 (6.8) | 446 (8.1) | 2,048 (8.5) |
| Pneumothorax | 103 (3.9) | 590 (6.0) | 207 (3.4) | 216 (3.9) | 1,116 (4.6) |
| Pulmonary contusion | 79 (3.0) | 527 (5.3) | 186 (3.1) | 249 (4.5) | 1,041 (4.3) |
| Hemothorax | 41 (1.6) | 207 (2.1) | 75 (1.2) | 60 (1.1) | 383 (1.6) |
| Sternal fracture | 24 (0.9) | 212 (2.1) | 112 (1.9) | 124 (2.3) | 472 (2.0) |
| Ruptured diaphragm | 14 (0.5) | 6 (0.1) | 1 (0.0) | 3 (0.1) | 24 (0.1) |
| Aorta/great vessel injury | 2 (0.1) | 15 (0.2) | 11 (0.2) | 10 (0.2) | 38 (0.2) |
| Spinal fracture* | 149 (2.5) | 90 (1.6) | 239 (2.1) | ||
| Scapular fracture* | 68 (1.1) | 66 (1.2) | 134 (1.2) | ||
| Mediastinal or pericardial hematoma* | 34 (0.6) | 40 (0.7) | 74 (0.6) | ||
| Pneumomediastinum* | 33 (0.5) | 20 (0.4) | 53 (0.5) | ||
| Other* | 13 (0.2) | 4 (0.1) | 17 (0.1) |
CXR = chest X-ray
CT = computed tomography
*
Injury types collected for CT study only