Table 2.
Injury characteristics of the mild TBI sample
| Lifetime mild TBI (n, %) | |
| Total | 105, 100% |
| Military-related mild TBI | 56, 53% |
| More than one mild TBI | 49, 47% |
| Most severe mild TBI (minutes, SD) | |
| Altered mental status | 126.12, 438.97 |
| Post-traumatic amnesia | 25.44, 131.26 |
| Loss of consciousness | 2.37, 4.96 |
| Nature of injury (most severe) | |
| Military mild TBI | |
| Blast | 25 |
| Fall | 5 |
| Motor vehicle accident | 4 |
| Physical assault | 2 |
| Sports-related injury | 4 |
| Othera | 5 |
| Total | 45 |
| Pre-deployment mild TBI | |
| Fall | 7 |
| Motor vehicle accident | 10 |
| Physical assault | 7 |
| Sports-related injury | 23 |
| Othera | 6 |
| Total | 53 |
| Post-deployment mild TBI | |
| Fall | 1 |
| Motor vehicle accident | 2 |
| Physical assault | 1 |
| Sports-related injury | 2 |
| Othera | 1 |
| Total | 7 |
| Nature of injury Totals (n, %) | |
| Blast | 25, 24% |
| Fall | 13, 12% |
| Motor vehicle accident | 16, 15% |
| Physical assault | 10, 10% |
| Sports-related injury | 29, 28% |
| Othera | 12, 11% |
aOther injuries include: hit by blunt object (e.g. pole, bar, vehicle, ceiling). Most severe nature of injury is reported, but many individuals had multiple types of injuries. Most severe mild TBI was determined by length of loss of consciousness, or post-traumatic amnesia, or altered mental status if the subject did not experience loss of consciousness or post-traumatic amnesia.