Table 2.
Injury Event Exposurec | Sample N (% and Population Estimates) | Self-Report TBI Level of those with Exposure | ||||
---|---|---|---|---|---|---|
No TBI | Altered Consciousness | LOC< 1 Minute | LOC 1+ Minutes | Total of Exposure Group | ||
Blast/explosion exposure only | 653 (9.7%, 35,948) | 567 (83.0%) | 57 (11.9%) | 21 (3.6%) | 8 (1.5%) | 100% |
Other injury etiologies onlyd | 740 (9.8%, 40,737) | 562 (75.2%) | 109 (14.2%) | 41 (6.0%) | 28 (4.7%) | 100% |
Blast/explosion AND other injury etiologiesd | 1,107 (19.8%, 60,941) | 613 (50.7%) | 257 (25.1%) | 124 (12.9%) | 113 (11.3%) | 100% |
Subtotal with Exposure (%and Population Estimates) | N = 2,500 39.4%, (137,625) |
N = 1,742 (86.1%) 95,897 | N = 423 (7.5%) 23,286 | N = 186 (3.5%) 10,239 | N = 149 (2.8%) 8,202 | 100% |
No exposure | 4,655e (60.6%, 256,259) | |||||
Total Population Estimate | 7,155 (100%, 393,884) |
Abbreviations: LOC, loss of consciousness
The table shows unweighted N’s and weighted percentages. Sums may not add to 100% due to rounding.
Results were significant at the p≤.0001 level. The p-value was calculated with the use of a design-based F test.
Population estimates for a subpopulation of active duty service members returning from a combat deployment in the past year (population N is 393,884).
Vehicular accident/crash, fragments wound above the shoulders, bullet wound above the shoulders, falls, and ‘other’ self-reported events.
396 service members in the sample had missing injury event data. These missing data were imputed to become zeros (rather than missing data), which decreases the weighted percentages of those with TBI slightly.