TABLE 1.
Summary of study characteristics by type of study populations (n = 42), 34 papers
| Characteristic | Military | Professionals | Civilians |
|---|---|---|---|
| Number of study populations, n | 20 | 5 | 17 |
| Publication year, n | |||
| 2000–2010 | 2 | 0 | 4 |
| 2011–2015 | 9 | 1 | 7 |
| 2016–2020 | 9 | 4 | 6 |
| Region, n | |||
| USA | 12 | 4 | 7 |
| Europe | 2 | 0 | 4 |
| Other | 6 | 1 | 6 |
| Traumatic event(s), n | |||
| Deployment/combat | 21 | 0 | 0 |
| Terror | 0 | 4 | 5 |
| Disaster | 0 | 1 | 5 |
| Injury/disease | 0 | 0 | 6 |
| Study size, n | |||
| 100‐<500 | 9 | 0 | 6 |
| 500‐<3000 | 3 | 2 | 1 |
| 3000+ | 8 | 3 | 10 |
| Men, % mean (range) | 93.9 (72–100) | 67.7 (41–86) | 43.6 (0–82) |
| Age, years, mean at baseline (range) | 31.6 (23–59) | 43.4 (40–45) | 41.0 (20–70) |
| Number of assessments, mean (range) | 3.9 (3–6) | 3.6 (3–4) | 3.5 (3–7) |
| Duration of follow‐up, months (mean, range) | 130 (7–420) | 112 (54–144) | 43 (12–144) |
| Method of data collection, % | |||
| Questionnaire | 17 | 4 | 8 |
| Interview | 0 | 1 | 8 |
| Expert | 3 | 0 | 1 |
| PTSD symptom scale, % | |||
| PCL | 11 | 5 | 4 |
| CAPS | 4 | 0 | 2 |
| Other | 5 | 0 | 11 |
| PTSD symptom trajectory, % (mean) | |||
| No delayed‐onset track, n | 3 | 0 | 10 |
| Resilient, mean % | 74.9 | 71.1 | 63.8 |
| Delayed‐onset, mean % | 11.9 | 11.1 | 8.3 |
| Other, mean % | 13.2 | 17.8 | 27.9 |
| High homogeneity, % | 52.9 | 60.0 | 70,5 |
| Participation at baseline <75%, % | 80 | 80 | 70 |
| Attrition from baseline to latest follow‐up >25%, % | 85 | 80 | 65 |