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. Author manuscript; available in PMC: 2021 Nov 1.
Published in final edited form as: Psychol Med. 2020 Feb 3;51(7):1129–1139. doi: 10.1017/S0033291719004008

Table 1.

Descriptive Data for Included Studies and the Pooled ICPP Dataset

Variable Multisite ASD JTOPS TCOM Ohio-MVA Zurich ICU Amsterdam Cortisol ICPP χ2df; p-value
Age Quartile χ215=122.89
 <27 272 (26.1%) 181 (24.6%) 59 (33.9%) 87 (30.4%) 36 (29.8%) 119 (16.4%) 754 (24.5%) p < .001
 27–37 231 (22.2%) 263 (35.8%) 39 (22.4%) 52 (18.2%) 24 (19.8%) 180 (24.8%) 789 (25.6%)  
 38–48 283 (27.2%) 146 (19.9%) 28 (16.1%) 81 (28.3%) 29 (24%) 179 (24.7%) 746 (24.2%)
 >48 255 (24.5%) 145 (19.7%) 48 (27.6%) 66 (23.1%) 32 (26.4%) 248 (34.2%) 794 (25.8%)
Gender   χ25=105.1
 Male 761 (73.1%) 379 (51.6%) 126 (72.4%) 163 (57%) 91 (75.2%) 462 (63.6%) 1982 (64.3%) p <.001
 Female 280 (26.9%) 356 (48.4%) 48 (27.6%) 123 (43%) 30 (24.8%) 264 (36.4%) 1101 (35.7%)  
Race   χ210=1707.19
 White 622 (59.8%) 735 (100%) 0 (0%) 262 (91.6%) 99 (81.8%) 650 (89.5%) 2368 (76.8%) p <.001
 Non-White 69 (6.6%) 0 (0%) 174 (100%) 23 (8%) 0 (0%) 64 (8.8%) 330 (10.7%)  
 Missing 350 (33.6%) 0 (0%) 0 (0%) 1 (0.3%) 22 (18.2%) 12 (1.7%) 385 (12.5%)
Education   χ210=233.68
 Secondary or Greater 692 (66.5%) 594 (80.8%) 139 (79.9%) 261 (91.3%) 105 (86.8%) 569 (78.4%) 2360 (76.5%) p <.001
 Less than Secondary 234 (22.5%) 86 (11.7%) 35 (20.1%) 24 (8.4%) 16 (13.2%) 152 (20.9%) 547 (17.7%)  
 Missing 115 (11%) 55 (7.5%) 0 (0%) 1 (0.3%) 0 (0%) 5 (0.7%) 176 (5.7%)
Marital Status   χ210=188.05
 Married/living with partner 459 (44.1%) 343 (46.7%) 77 (44.3%) 120 (42%) 52 (43%) 393 (54.1%) 1444 (46.8%) p <.001
 Single/not living with partner 476 (45.7%) 337 (45.9%) 97 (55.7%) 165 (57.7%) 69 (57%) 332 (45.7%) 1476 (47.9%)  
 Missing 106 (10.2%) 55 (7.5%) 0 (0%) 1 (0.3%) 0 (0%) 1 (0.1%) 163 (5.3%)
Prior Trauma   χ215=1104.56
 No prior trauma 133 (12.8%) 195 (26.5%) 38 (21.8%) 15 (5.2%) 0 (0%) 90 (12.4%) 471 (15.3%) p <.001
 Prior non-interpersonal trauma 288 (27.7%) 234 (31.8%) 76 (43.7%) 120 (42%) 0 (0%) 278 (38.3%) 996 (32.3%)  
 Prior interpersonal trauma 619 (59.5%) 224 (30.5%) 43 (24.7%) 127 (44.4%) 0 (0%) 357 (49.2%) 1370 (44.4%)
 Missing 1 (0.1%) 82 (11.2%) 17 (9.8%) 24 (8.4%) 121 (100%) 1 (0.1%) 246 (8%)
Trauma Type   χ210=558.12
 MVA 674 (64.7%) 604 (82.2%) 174 (100%) 286 (100%) 75 (62%) 476 (65.6%) 2289 (74.2%) p <.001
 Other accidents 310 (29.8%) 41 (5.6%) 0 (0%) 0 (0%) 46 (38%) 218 (30%) 615 (19.9%)  
 Assaults (intentional harm) 57 (5.5%) 90 (12.2%) 0 (0%) 0 (0%) 0 (0%) 32 (4.4%) 179 (5.8%)
Mean CAPS Severity (SD)   Fdf, p-value
 <1 month 18.12 (16.81)       21.5 (15.14)   18.47 (16.67) F1 = 4.49, p =.034
 1 month   56.77 (25.14) 19.71 (17.64) 26.02 (21.24)   22.04 (19.98) 36.74 (27.89) F3 = 340.39, p < .001
 3 months 20.25 (20.88)         18.53 (17.71) 19.84 (20.18) F1 = 1.55 p = .214
 6 months   29.33 (25.77) 15.64 (16.13) 20.21 (19.21) 14.79 (13.84) 17.93 (18.84) 22.47 (22.27) F4 = 27.27 p < .001
 9 months   31.51 (26.73)         31.51 (26.73) N/A
 1 year 19.03 (21.91)   16.88 (20.96) 18.56 (19.64) 16.69 (15.12) 15.69 (17.23) 17.84 (20.07) F4 = 2.04 p = .086

Note. df = degrees of freedom; CAPS = Clinician-Administered PTSD Scale; SD = Standard Deviation;