Table 2:
Demographic characteristics of sample participants at first evaluation
| Total† | No PTSD | ICD-10 PTSD | ICD-11 PTSD | ICD-10 only | p‡ | |
|---|---|---|---|---|---|---|
| Wave 1 | N = 1,061 | N = 464 | N = 585 | N = 421 | N = 173 | |
| Age | ||||||
| M (SD) | 34.61 (12.26) | 33.29 (11.89) | 35.72 (12.47) | 35.38 (12.38) | 36.29 (12.65) | 0.423 |
| [95% CI] | [33.88, 35.35] | [32.21, 34.37] | [34.70, 36.73] | [34.20, 36.57] | [34.40, 38.19] | |
| Female gender | n = 509 (47.97%) | n = 218 (46.78%) | n = 287 (48.89%) | n = 220 (52.26%) | n = 71 (40.80%) | 0.012 |
| Trauma type: | .003 | |||||
| MVA | n = 872 (82.50%) | n = 389 (84.01%) | n = 477 (81.40%) | n = 332 (78.86%) | n = 151 (87.28%) | |
| Non-MVA accident | n = 63 (5.96%) | n = 32 (6.91%) | n = 31 (5.29%) | n = 20 (4.75%) | n = 11 (6.36%) | |
| Interpersonal harm | n = 122 (11.54%) | n = 42 (9.07%) | n = 78 (13.31%) | n = 69 (16.39%) | n = 11 (6.36%) | |
| Symptom severity: | ||||||
| CAPS | ||||||
| M (SD) | 47.91 (28.83) | 23.70 (18.02) | 67.36 (19.90) | 71.93 (19.73) | 54.61 (15.70) | <0.001 |
| [95% CI] | [46.17, 49.64] | [22.05, 25.34] | [65.74, 68.97] | [70.04, 73.82] | [52.26, 56.96] | |
| BDI-II | N = 1,012 | N = 457 | N = 547 | N = 394 | N = 161 | |
| M (SD) | 18.30 (12.61) | 14.25 (12.05) | 21.73 (12.12) | 23.15 (12.47) | 17.93 (10.21) | <0.001 |
| [95% CI] | [17.52, 19.07] | [13.14, 15.35] | [20.72, 22.75] | [21.91, 24.38] | [16.34, 19.51] | |
| Wave 2 | N = 902 | N = 656 | N = 244 | N = 132 | N = 114 | |
| Age | 34.48 (12.17) | 13.37 (14.33) | 36.65 (12.52) | 65.95 (20.99) | 48.80 (16.53) | 0.159 |
| M (SD) | [33.69, 35.28] | [12.27, 14.47] | [35.07, 38.23] | [62.34, 69.57] | [45.73, 51.87] | |
| [95% CI] | ||||||
| Female gender | n = 444 (49.22%) | n = 307 (46.80%) | n = 136 (55.74%) | n = 69 (51.52%) | n = 68 (60.53%) | 0.16 |
| Trauma type: | 0.433 | |||||
| MVA | n = 740 (82.41%) | n = 544 (83.31%) | n = 194 (79.84%) | n = 103 (78.63%) | n = 93 (81.58%) | |
| Non-MVA accident | n = 49 (5.46%) | n = 37 (5.67%) | n = 12 (4.94%) | n = 5 (3.82%) | n = 7 (6.14%) | |
| Interpersonal harm | n = 109 (12.14%) | n = 72 (11.03%) | n = 37 (15.23%) | n = 23 (17.56%) | n = 14 (12.28%) | |
| Symptom severity: | ||||||
| CAPS | 25.54 (25.75) | 13.37 (14.33) | 58.25 (20.76) | 65.95 (20.99) | 48.80 (16.53) | <0.001 |
| M (SD) | [23.86, 27.23] | [12.27, 14.47] | [55.64, 60.87] | [62.34, 69.57] | [45.73, 51.87] | |
| [95% CI] | ||||||
| BDI-II | N = 865 | N = 635 | N = 228 | N = 126 | N = 104 | <0.001 |
| M (SD) | 13.03 (12.65) | 10.06 (11.42) | 21.30 (12.29) | 23.93 (12.71) | 17.94 (10.94) | |
| [95% CI] | [12.19, 13.88] | [9.18, 10.95] | [19.70, 22.91] | [21.69, 26.17] | [15.81, 20.07] |
†
Missing data: 4 participants were missing data on type of trauma.
‡
Statistical comparisons are between ICD-10 only and ICD-11 groups. T-tests were used for age, and Fisher’s tests were used for gender and type of trauma.
Abbreviations: MVA = motor vehicle accident; CAPS = Clinician-Administered PTSD Scale; BDI-II = Beck Depression Inventory-II