| | Study | Sample source | Sample gender | Trauma type | Diagnostic tool | Sample size | Patients | Controls | Ethn. | Val/Val | Val/Met | Met/Met | HWE |
| | Zhang et al., 2006 [16] | Hospital | Mixed | N/A | SCID DSM III-R, SADS-L (PTSD section) | 346 | 96 | 250 | Cauc. | PTSD: 69
Controls: 166 | PTSD: 26
Controls: 74 | PTSD: 1
Controls: 10 | PTSD:
Controls: |
| | Valente et al., 2011 [28] | Hospital | N/A | Urban viol. | CIDI, SCID, CAPS, BAI, BDI, ETI | 832 | 65 | 767 | Braz. | PTSD: 48
PTSD−: 29
Controls: 555 | PTSD: 15
PTSD−: 5
Controls: 164 | PTSD: 2
PTSD−: 0
Controls: 14 | PTSD:
PTSD−:
Controls: |
| | Lee et al., 2006 [30] | Health centres; random controls | Mixed | N/A | SCID DSM IV, Korean version | 268 | 107 | 161 | Korean | PTSD: 28
Controls: 48 | PTSD: 57
Controls: 82 | PTSD: 22
Controls: 31 | PTSD:
Controls: |
| | Pivac et al., 2012 [22] (add. inf.) | Hospital | Male | Combat | SCID DSM IV, PANSS, CAPS | 638 | 373 | 265 | Cauc. | PTSD: 235
PTSD−: 173 | PTSD: 126
PTSD−: 86 | PTSD: 12
PTSD−: 6 | PTSD:
PTSD−: |
| | Zhang et al., 2014 [27] | US Army Special Ops. | N/A | Combat | PCL for DSM IV, Life Events Checklist | 461 | 42 | 419 | Mixed | PTSD: 20
PTSD−: 294 | PTSD: 16
PTSD−: 104 | PTSD: 6
PTSD−: 21 | PTSD:
PTSD−: |
| | Lyoo et al., 2011 [31] | Daegu registry, local comm. | Mixed | Subway disaster | CAPS, Structured Clinical Interviews for DSM IV | 66 | 30 | 36 | South Korean | PTSD: 10
Controls: 14 | PTSD: 15
Controls: 18 | PTSD: 5
Controls: 4 | PTSD:
Controls: |
| | Our study | Hospital; RSL | Male | Combat | CAPS, Semi-structured Clinical Interviews for DSM V | 257 | 151 | 106 | Cauc. | PTSD: 99
PTSD−: 71 | PTSD: 46
PTSD−: 28 | PTSD: 6
PTSD−: 7 | PTSD:
PTSD−: |
| | Li et al., 2016 [23] | High school | N/A | Natural disaster | PCL-C (DSM IV) | 531 | 161 | 370 | Han Chin. | PTSD: 39
PTSD−: 109 | PTSD: 80
PTSD−: 190 | PTSD: 42
PTSD−: 71 | PTSD:
PTSD−: |
| | Dretsch et al., 2016 [29] | US Army | N/A | Combat | PCL-M | 226 | 41 | 185 | Mixed | PTSD: 28
PTSD−: 129 | PTSD: 8
PTSD−: 49 | PTSD: 5
PTSD−: 7 | PTSD:
PTSD−: |
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Note. Ethn., ethnicity; HWE, Hardy-Weinberg equilibrium; N/A, not available; Cauc., Caucasian; Braz., Brazilian; Chin., Chinese; viol., violence; PTSD−, trauma exposed but no PTSD diagnosis; controls, no trauma exposure; add. inf., includes additional information; comm., community; RSL, Returned Services League; SCID, Structured Clinical Interview for DSM; DSM, Diagnostic and Statistical Manual for Mental Disorders; SADS-L, schedule for affective disorders and schizophrenia-lifetime version; CIDI, Composite International Diagnostic Interview; CAPS, Clinician-administered PTSD scale; BAI, Beck Anxiety Interview; BDI, Beck Depression Inventory; ETI, Early Trauma Inventory; PANSS, Positive and Negative Syndrome Scale; PCL, Posttraumatic Stress Disorder Checklist.
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