Table 2.
Generalized Estimating Equations Examining if Trauma Characteristics Predict PTSD Response
| Β (SE) | χ2 | df | p-value | |
|---|---|---|---|---|
| Intercept | 57.15 (4.83) | 328.27 | 1 | <.001 |
| Education (years) | −1.16 (1.06) | 1.19 | 1 | .257 |
| Days of employment (past 30 days) | −0.66 (0.27) | 5.92 | 1 | .015 |
| Sex | −1.52 (5.05) | 0.09 | 1 | .764 |
| Group | 0.01 (6.65) | 0.00 | 1 | .999 |
| Time | −2.15 (0.37) | 60.79 | 1 | <.001 |
| Trauma age | 0.14 (0.28) | 0.01 | 1 | .912 |
| Trauma count | −1.72 (6.72) | 0.00 | 1 | .977 |
| Time × group | −0.12 (0.56) | 0.05 | 1 | .826 |
| Time × trauma age | −0.01 (0.02) | 0.10 | 1 | .758 |
| Time × trauma count | −0.35 (0.54) | 0.01 | 1 | .921 |
| Group × trauma age | −0.24 (0.39) | 0.37 | 1 | .545 |
| Group × trauma count | 3.19 (9.26) | 0.12 | 1 | .730 |
| Group × time × trauma age | 0.00 (0.04) | 0.01 | 1 | .933 |
| Group × time × trauma count | 0.77 (0.78) | 0.97 | 1 | .324 |
Note. Statistically significant effects are bolded. Group = Co-Occurring Prolonged Exposure and Relapse Prevention (COPE; Back et al., 2014) versus Relapse Prevention Therapy (RPT; Carroll, 1998; Marlatt & Donovan, 2007); trauma age and count were grand mean centered. RPT = reference category.