Table 2.
History of military service in standard and long-duration ALS groups.
| Standard | Long | P-value | |
|---|---|---|---|
| Years in Military, mean ± SEM | 6.49 ± 0.75 | 5.96 ± 0.77 | 0.971† |
| Military Branch, n (%) | 0.808‡ | ||
| Army | 47 (48%) | 37 (48%) | |
| Navy | 21 (21%) | 19 (25%) | |
| Air Force | 23 (23%) | 14 (19%) | |
| Marines | 5 (5%) | 3 (4%) | |
| Coast Guard | 1 (1%) | 0 (0%) | |
| Merchant Marines | 0 (0%) | 1 (1%) | |
| Multiple Branches | 2 (2%) | 2 (3%) | |
| Military Era, n (%) | 0.676‡ | ||
| WWII | 5 (5%) | 7 (9%) | |
| Korean | 5 (5%) | 6 (8%) | |
| Post-Korean | 1 (1%) | 0 (0%) | |
| Vietnam | 63 (64%) | 42 (55%) | |
| Post-Vietnam | 7 (7%) | 7 (9%) | |
| Gulf War | 8 (8%) | 4 (5%) | |
| Multiple Eras | 10 (10%) | 10 (13%) | |
| Deployed Overseas, ± (%) | 67/13 (84%) | 61/14 (81%) | 0.692‡ |
†
Mann-Whitney U test.
‡
χ2 test of variance.