Table 7 Meta-analysis: Summary mortality rate ratios comparing conflict-zone service members to non-conflict-zone service members
| Conflict | Follow-Up Period (Studies) | Mortality Grouping |
Summary Mortality Rate Ratio Conflict-Zone Service Members/ Non-Conflict-Zone Service Members (95% Confidence Interval) | Methodological Quality Score (mean ± SD) |
|---|---|---|---|---|
| Vietnam | Shorter Follow-up, 9 to 18 Years [9, 42] | All External Causes | 1.26 (1.08–1.46) | 94 ± 3 |
| Motor Vehicle Events | 1.27 (1.03–1.57) | |||
| Suicide | 1.26 (0.91–1.77) | |||
| Homicide | 1.02 (0.89–1.17) | |||
| Longer Follow-up, 18 to 40 Years [25, 29, 51] | All External Causes | 1.19 (1.11–1.28) | 86 ± 6 | |
| Motor Vehicle Events | 1.21 (0.99–1.47) | |||
| Suicide | 1.06 (0.83–1.36) | |||
| Homicide | 0.90 (0.60–1.36)a | |||
| Gulf | Shorter Follow-up, 3 to 8 Years [28, 32]b | All External Causes | 1.26 (1.16–1.37) | 86 ± 4 |
| Motor Vehicle Events | 1.39 (1.22–1.60) | |||
| Suicide | 0.95 (0.80–1.14) | |||
| Homicide | 0.95 (0.73–1.23) | |||
| Longer Follow-up, 7 to 13 Years [57, 59]b | All External Causes | 1.09 (1.04–1.14) | 85 ± 3 | |
| Motor Vehicle Events | 1.29 (1.18–1.40) | |||
| Suicide | 0.99 (0.85–1.15) | |||
| Homicide | 1.02 (0.89–1.17)c |
