Table 5.
Generalized Estimating Equations Examining if Trauma Characteristics Predict SUD Response from the Last Session Across Follow Up Periods
| Β (SE) | χ2 | df | p-value | |
|---|---|---|---|---|
| Intercept | −1.10 (1.15) | 0.34 | 1 | .559 |
| Sex | 0.68 (0.33) | 4.15 | 1 | .042 |
| Education (years) | 0.11 (0.07) | 2.81 | 1 | .093 |
| Days of employment (past 30 days) | 0.00 (0.02) | 0.05 | 1 | .829 |
| PTSD severity | 0.00 (0.00) | 1.00 | 1 | .319 |
| Group | 0.70 (1.42) | 0.24 | 1 | .625 |
| Time | 0.04 (0.08) | 0.91 | 1 | .341 |
| Trauma age | −0.04 (0.05) | 1.07 | 1 | .302 |
| Trauma count | 0.42 (1.71) | 0.01 | 1 | .942 |
| Time × group | 0.02 (0.09) | 0.03 | 1 | .864 |
| Time × trauma age | 0.00 (0.00) | 0.40 | 1 | .529 |
| Time × trauma count | 0.01 (0.12) | 0.06 | 1 | .810 |
| Group × trauma age | −0.01 (0.09) | 0.00 | 1 | .948 |
| Group × trauma count | −0.98 (1.98) | 0.24 | 1 | .623 |
| Group × time × trauma age | 0.00 (0.01) | 0.07 | 1 | .789 |
| Group × time × trauma count | 0.02 (0.13) | 0.02 | 1 | .900 |
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.