Table 1.
Demographic and clinical characteristics of the study cohort.
| Had PTSD outcome at 6m post-injury | Total | p-value | ||
|---|---|---|---|---|
| No | Yes | |||
| Age Median (IQR) | 38 (26, 55) | 38 (25, 55) | 38 (26, 55) | 0.396 |
| Years of Education Median (IRQ) | 12 (11, 14) | 13 (12, 16) | 13 (12, 16) | <0.001 |
| Patient Type | ||||
| ED Discharge | 114 (23.65%) | 339 (29.66%) | 453 (27.88%) | <0.001 |
| Hospital admit no ICU | 186 (38.59%) | 488 (42.69%) | 674 (41.48%) | |
| Hospital admit with ICU | 182 (37.76%) | 316 (27.65%) | 498 (30.65%) | |
| Total | 482 (100%) | 1143 (100%) | 1625 (100%) | |
| Gender | 0.002 | |||
| Male | 351 (72.82%) | 740 (64.74%) | 1091 (67.14%) | |
| Female | 131 (27.18%) | 403 (35.26%) | 534 (32.86%) | |
| Total | 482 (100%) | 1143 (100%) | 1625 (100%) | |
| Race | 0.117 | |||
| White | 376 (80.17%) | 865 (75.94%) | 1241 (77.18%) | |
| Black | 72 (15.35%) | 198 (17.38%) | 270 (16.79%) | |
| Other | 21 (4.48%) | 76 (6.67%) | 97 (6.03%) | |
| Total | 469 (100%) | 1139 (99.99%) | 1608 (100%) | |
| Hispanic | <0.001 | |||
| Non-Hispanic | 343 (72.82%) | 945 (83.04%) | 1288 (80.05%) | |
| Hispanic | 128 (27.18%) | 193 (16.96%) | 321 (19.95%) | |
| Total | 471 (100%) | 1138 (100%) | 1609 (100%) | |
| Injury Cause | 0.551 | |||
| Road traffic incident | 260 (54.05%) | 645 (56.63%) | 905 (55.86%) | |
| Incidental fall | 141 (29.31%) | 315 (27.66%) | 456 (28.15%) | |
| Violence/assault | 37 (7.69%) | 70 (6.15%) | 107 (6.6%) | |
| Other | 43 (8.94%) | 109 (9.57%) | 152 (9.38%) | |
| Total | 481 (99.99%) | 1139 (100.01%) | 1620 (100%) | |
| Prior TBI | 0.129 | |||
| No | 309 (71.36%) | 763 (67.34%) | 1072 (68.45%) | |
| Yes | 124 (28.64%) | 370 (32.66%) | 494 (31.55%) | |
| Total | 433 (100%) | 1133 (100%) | 1566 (100%) | |
| Psychiatric History | 0.121 | |||
| No | 383 (79.63%) | 868 (75.94%) | 1251 (77.03%) | |
| Yes | 98 (20.37%) | 275 (24.06%) | 373 (22.97%) | |
| Total | 481 (100%) | 1143 (100%) | 1624 (100%) | |
| GCS ED Arrival | 0.114 | |||
| 13 | 32 (6.64%) | 49 (4.29%) | 81 (4.98%) | |
| 14 | 83 (17.22%) | 220 (19.25%) | 303 (18.65%) | |
| 15 | 367 (76.14%) | 874 (76.47%) | 1241 (76.37%) | |
| Total | 482 (100%) | 1143 (100.01%) | 1625 (100%) | |
| LOC | 0.964 | |||
| No | 62 (12.89%) | 142 (12.47%) | 204 (12.59%) | |
| Yes | 396 (82.33%) | 941 (82.62%) | 1337 (82.53%) | |
| Unknown | 23 (4.78%) | 56 (4.92%) | 79 (4.88%) | |
| Total | 481 (100%) | 1139 (100.01%) | 1620 (100%) | |
| Posttraumatic Amnesia (PTA) | 0.393 | |||
| No | 93 (19.33%) | 212 (18.61%) | 305 (18.83%) | |
| Yes | 357 (74.22%) | 831 (72.96%) | 1188 (73.33%) | |
| Unknown | 31 (6.44%) | 96 (8.43%) | 127 (7.84%) | |
| Total | 481 (99.99%) | 1139 (100%) | 1620 (100%) | |
| CT Intracranial Injury | 0.12 | |||
| CT− | 277 (60.61%) | 725 (64.79%) | 1002 (63.58%) | |
| CT+ | 180 (39.39%) | 394 (35.21%) | 574 (36.42%) | |
| Total | 457 (100%) | 1119 (100%) | 1576 (100%) | |
| Sampling Time (hours) | 0.351 | |||
| 0–8h | 100 (20.75%) | 274 (23.97%) | 374 (23.02%) | |
| 9–16h | 148 (30.71%) | 341 (29.83%) | 489 (30.09%) | |
| 17–24h | 234 (48.55%) | 528 (46.19%) | 762 (46.89%) | |
| Total | 482 (100.01%) | 1143 (99.99%) | 1625 (100%) | |