Table 3.
Weighted Lifetime PTSD Prevalence Models
| Lifetime PTSD | |||
|---|---|---|---|
| OR (95% CI), Model 1a | AOR (95% CI) | ||
| Model 2b | Model 3c | ||
| Wartime location | |||
| Vietnam (vs United States) | 1.53 (1.28-1.83)d | 1.78 (1.48-2.15)d | 0.94 (0.71-1.24) |
| Near Vietnam (vs United States) | 0.79 (0.60-1.05) | 0.97 (0.72-1.29) | 0.70 (0.51-0.98)d |
| Military characteristics | |||
| Enlistment age | NA | 0.94 (0.91-0.96)d | 0.96 (0.93-1.00)d |
| Nurse (vs nonnurse) | NA | 0.75 (0.62-0.91)d | 0.79 (0.62-1.01) |
| White (vs nonwhite) | NA | 1.07 (0.74-1.54) | 1.17 (0.77-1.79) |
| Air Force (vs Army) | NA | 0.74 (0.57-0.96)d | 0.77 (0.58-1.04) |
| Marines (vs Army) | NA | 1.25 (0.46-3.42) | 1.22 (0.43-3.44) |
| Navy (vs Army) | NA | 0.48 (0.31-0.75)d | 0.56 (0.35-0.89)d |
| Wartime exposures | |||
| Sexual discrimination or harassment | NA | NA | 1.07 (1.05-1.08)d |
| Casualty- or environment-related stress | NA | NA | 1.01 (1.00-1.03) |
| Performance pressure | NA | NA | 1.03 (1.02-1.04)d |
| Triage or death | NA | NA | 1.01 (1.00-1.03)d |
| Danger or threat | NA | NA | 1.01 (1.00-1.02) |
| Overwork | NA | NA | 1.00 (0.99-1.01) |
Abbreviations: AOR, adjusted odds ratio; NA, not applicable; OR, odds ratio; PTSD, posttraumatic stress disorder.
a
Indicates unadjusted model.
b
Indicates adjusted for military service characteristics.
c
Indicates adjusted for military service characteristics and wartime exposures.
d
Statistically significant at P ≤ .05.