Table 4.

Results of Models Predicting Trajectory Membership for Initial PTSD Reaction Models and PTSD Course Models (OR [95% CI]).

Variables	Initial PTSD Reaction Models		PTSD Course Models
	All Other (1) vs. Low (0)	High (1) vs. Low (0)	Delayed (1) vs. Low (0)	High (1) vs. Remitting (0)
Intercept	0.17*** [0.12–0.24]	0.01*** [0–0.02]	0.17*** [0.09–0.32]	0.21* [0.08–0.54]
Age Quartile
27–37	1.15 [0.91–1.45]	1.65* [1.03–2.65]	1.14 [0.69–1.89]	1.63 [0.93–2.84]
38–48	1.49* [1.17–1.91]	2.38** [1.46–3.87]	1.67* [1.04–2.69]	2.26* [1.27–4.04]
>48	0.92 [0.71–1.18]	0.96 [0.56–1.66]	0.96 [0.56–1.64]	1.81 [0.96–3.39]
Difference	χ23=19.71; p < .001	χ23=20.71; p < .001	χ23=7.28; p = .064	χ23=7.7; p = .053
Gender
Female	2*** [1.69–2.36]	2.63*** [1.9–3.65]	1.56* [1.07–2.27]	1.14 [0.78–1.68]
Difference	χ21=64.91; p < .001	χ21=33.48; p < .001	χ21=5.36; p = .021	χ21=0.45; p = .504
Race
Non-White	1.6* [1.12–2.3]	2.66* [1.38–5.12]	0.83 [0.4–1.72]	0.96 [0.28–3.27]
Missing	1.19 [0.88–1.61]	1.38 [0.78–2.44]	0.74 [0.46–1.19]	0.69 [0.34–1.4]
Difference	χ22=7.29; p = .026	χ22=9.02; p = .011	χ22=1.66; p = .437	χ22=1.08; p = .584
Education
Less than Secondary	1.16 [0.93–1.43]	2.83*** [1.93–4.15]	0.72 [0.45–1.16]	1.89* [1.16–3.09]
Missing	2.05* [1.19–3.55]	4.59* [1.84–11.46]	2.37 [0.95–5.92]	2.89 [0.99–8.49]
Difference	χ22=7.92; p = .019	χ22=34.83; p < .001	χ22=5.7; p = .058	χ22=9.19; p = .01
Marital Status
Single/not living with partner	1.07 [0.89–1.28]	0.95 [0.66–1.36]	1.03 [0.71–1.51]	0.77 [0.49–1.2]
Missing	0.94 [0.52–1.71]	0.81 [0.28–2.35]	0.62 [0.21–1.87]	0.64 [0.2–2.05]
Difference	χ22=0.59; p = .745	χ22=0.19; p = .91	χ22=0.84; p = .657	χ22=1.68; p = .432
Prior Trauma
Prior non-interpersonal	1.01 [0.78–1.3]	1.54 [0.84–2.8]	0.59 [0.32–1.07]	1.71 [0.87–3.37]
Prior interpersonal	1.65*** [1.29–2.12]	3.2*** [1.83–5.61]	1.33 [0.8–2.24]	2.57* [1.34–4.93]
Missing	1.88* [1.17–3.03]	3.54* [1.44–8.66]	0.44 [0.05–3.54]	1.73 [0.69–4.29]
Difference	χ23=35.19; p < .001	χ23=26.05; p < .001	χ23=14.49; p = .002	χ23=8.61; p = .035
Trauma Type
Other accidents	0.65** [0.52–0.81]	0.61 [0.37–1.02]	0.49* [0.31–0.79]	0.55 [0.28–1.08]
Assaults (intentional harm)	2.31*** [1.65–3.25]	4.74*** [2.86–7.85]	2.67* [1.32–5.4]	2.09* [1.17–3.71]
Difference	χ22=42.05; p < .001	χ22=44.06; p < .001	χ22=18.55; p < .001	χ22=10.48; p < .001
Study
JTOPS	3.94*** [3.07–5.06]	4.03*** [2.45–6.61]	-	0.27*** [0.15–0.49]
TCOM	0.56* [0.33–0.94]	0.39 [0.13–1.16]	0.31* [0.11–0.94]	0.35 [0.08–1.55]
Ohio-MVA	0.61* [0.43–0.87]	1.22 [0.64–2.33]	0.32** [0.18–0.58]	1.12 [0.5–2.54]
Zurich ICU	0.92 [0.49–1.73]	1.77 [0.57–5.47]	0.83 [0.09–7.78]	0.98 [0.29–3.39]
Amsterdam Cortisol	1.42* [1.13–1.8]	0.92 [0.54–1.56]	-	-
Difference	χ25=187.15; p < .001	χ25=46.75; p < .001	χ25=17.52; p = .004	χ25=30.39; p < .001
N	3083	2186	2156	720
Efron’s R2	0.15	0.14	0.12	0.24
Brier	0.2	0.07	0.06	0.15
AUC	0.73	0.79	0.83	0.77

Note:

^*p < .05

^**p < .01

^***p < .001;

AUC = Area Under the Curve of the Receiver Operator Characteristic.