Table 4.
Generalized Estimating Equations Examining if Trauma Characteristics Predict PTSD Response from the Last Session Across Follow Up Periods
| Β (SE) | χ2 | df | p-value | |
|---|---|---|---|---|
| Intercept | 34.37 (9.79) | 8.02 | 1 | .005 |
| Sex | −2.80 (5.24) | 0.29 | 1 | .593 |
| Group | −4.66 (21.86) | 0.05 | 1 | .831 |
| Time | −0.17 (0.63) | 0.01 | 1 | .937 |
| Education (years) | −2.59 (1.13) | 5.30 | 1 | .021 |
| Days of employment (past 30 days) | −0.74 (0.29) | 6.51 | 1 | .011 |
| Trauma age | −0.69 (0.62) | 0.53 | 1 | .465 |
| Trauma count | −23.59 (16.85) | 0.17 | 1 | .683 |
| Time × group | 0.23 (1.32) | 0.03 | 1 | .861 |
| Time × trauma age | 0.05 (0.05) | 0.62 | 1 | .430 |
| Time × trauma count | 1.36 (1.14) | 0.10 | 1 | .748 |
| Group × trauma age | −0.28 (2.26) | 0.02 | 1 | .903 |
| Group × trauma count | 58.46 (27.27) | 4.60 | 1 | .032 |
| Group × time × trauma age | 0.01 (0.14) | 0.00 | 1 | .952 |
| Group × time × trauma count | −3.28 (1.74) | 3.54 | 1 | .060 |
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.