Table 2.
Hierarchical regression model predicting post‐traumatic stress severity on the CPSS at 2 months post‐trauma
| Predictor variable (assessed at 2–4 weeks) | Model | Step | Step 5 | ||||
|---|---|---|---|---|---|---|---|
| Adj. R 2 | F test | ΔR 2 | F test | B | Bootstrapped 95% CI | β | |
| Step 1: Pretrauma factors | .10 | F 1,189 = 22.74, p < .0001 | .10 | F 1,190 = 22.74, p < .0001 | |||
| Emotional difficulties | −0.50 | −0.87, −0.11 | −.16 | ||||
| Step 2: Trauma characteristics | .17 | F 3,187 = 13.57, p < .0001 | .07 | F 2,187 = 8.12, p < .0001 | |||
| Assault versus nonassault | 3.07 | 0.10, 5.90 | .12 | ||||
| Head injury | −3.42 | −5.39, −1.55 | −.17 | ||||
| Step 3: Peritrauma cognitive processing | .42 | F 8,182 = 18.12, p < .0001 | .27 | F 5,182 = 17.31, p < .0001 | |||
| Subjective threat | −0.30 | −0.74, 0.15 | −.08 | ||||
| Panic | 0.57 | −0.02, 1.16 | .14 | ||||
| Data‐driven processing | 0.20 | 0.00, 0.41 | .13 | ||||
| Peritraumatic dissociation | 0.08 | −0.32, 51 | .03 | ||||
| Peritraumatic pain | −0.79 | −1.61, 0.13 | −.09 | ||||
| Step 4: Post‐trauma psychosocial factors | .43 | F 11,179 = 13.87, p < .0001 | .02 | F 3,183 = 1.85, p = .14 | |||
| Adaptive processing | 0.04 | −.21, 0.29 | .02 | ||||
| Ongoing pain | 0.17 | −1.08, 1.45 | .02 | ||||
| Life stressors | −0.10 | −0.99, 0.64 | −.01 | ||||
| Step 5: Post‐trauma cognitive processing | .64 | F 15,175 = 23.59, p < .0001 | .21 | F 4,175 = 27.63, p < .0001 | |||
| Ongoing dissociation | 0.87 | .19, 1.57 | .21 | ||||
| Memory quality (TMQQ) | 0.11 | −.09, 0.29 | .07 | ||||
| Trauma‐related appraisals (CPTCI) | 0.32 | .19, 0.43 | .48 | ||||
| Trauma‐related rumination | 0.42 | .13, 0.83 | .12 | ||||
Regression coefficients (B and β) where the 95% bootstrapped regression coefficient did not cross zero are highlighted in bold. CPSS, Child PTSD Symptom Scale; CPTCI, Child Post‐Traumatic Cognitions Inventory; TMQQ, Trauma Memory Quality Questionnaire.