Table 3.
Psychiatric Comorbidity of US Veterans With and Without Probable Lifetime PTSDa
| Variable | No Probable Lifetime PTSD (n = 2,918), Raw Frequency (weighted %) | Probable Lifetime PTSD (n = 212), Raw Frequency (weighted %) | χ2 | P | OR | 95% CI |
|---|---|---|---|---|---|---|
| Lifetime major depressive disorder | 365 (12.2) | 147 (72.6) | 587.85 | < .001 | 14.90 | 10.85–20.46 |
| Lifetime social anxiety disorder | 182 (6.2) | 88 (49.4) | 493.37 | < .001 | 10.81 | 7.93–14.73 |
| Lifetime alcohol abuse or dependence | 1,139 (40.2) | 137 (68.3) | 73.80 | < .001 | 3.75 | 2.78–5.06 |
| Lifetime nicotine dependence | 509 (18.6) | 71 (31.5) | 24.00 | < .001 | 2.25 | 1.67–3.04 |
| Lifetime drug abuse or dependence | 309 (11.6) | 76 (35.9) | 115.33 | < .001 | 3.52 | 2.59–4.78 |
| Lifetime suicide attempt | 102 (4.0) | 61 (39.9) | 456.95 | < .001 | 11.81 | 8.43–16.56 |
| Current major depression | 118 (4.0) | 90 (51.2) | 710.95 | < .001 | 19.06 | 13.70–26.52 |
| Current generalized anxiety | 120 (4.4) | 78 (49.2) | 625.27 | < .001 | 15.76 | 11.39–21.80 |
| Current suicidal ideation | 143 (6.3) | 83 (45.2) | 404.48 | < .001 | 9.72 | 7.12–13.28 |
a
Percentages, χ2 statistics, and ORs were calculated by using poststratification weights to be consistent with the demographic composition of US veterans in concurrent US Census data. Odds ratios were calculated in separate models for each comorbidity and adjusted for the following sociodemographic and military variables: age, sex, race, military branch, and combat veteran status. A Bonferroni-corrected α level of .0056 was used to determine statistical significance.
Abbreviation: PTSD = posttraumatic stress disorder.