Table 2.
Results of Hierarchical Regression Analyses Predicting 3-month and 8-month Outcomes
| IES-R (Model 1) | BDI (Model 2) | LOSROS (Model 3) | IES-R (Model 4) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Predictor | B | b | SE | t | p | B | b | SE | t | p | B | SE | t | p | B | b | SE | t | p | |
| 3-month Outcomes (T2) | ||||||||||||||||||||
| Constant | .18 | .12 | 1.51 | .13 | 1.14 | 1.19 | .93 | .35 | .89 | .21 | 4.08 | < .001 | .48 | .16 | 2.92 | .004 | ||||
| IES-R-T1 | .50 | .39 | .07 | 5.66 | < .001 | -- | -- | -- | -- | -- | -- | -- | -- | .25 | .20 | .10 | 2.00 | .05 | ||
| BDI-T1 | -- | -- | -- | -- | .62 | .53 | .07 | 7.41 | < .001 | -- | -- | -- | -- | .17 | .01 | .01 | 1.28 | .20 | ||
| LOSROS-T1 | -- | -- | -- | -- | -- | -- | -- | -- | .67 | .54 | .06 | 8.84 | < .001 | -- | -- | -- | -- | |||
| EW | .22 | .30 | .12 | 2.45 | .02 | .19 | 3.27 | 1.45 | 2.26 | .03 | .08 | .20 | .20 | 1.03 | .36 | .22 | .30 | .12 | 2.27 | .01 |
| Rumination | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .21 | .24 | .13 | 1.80 | .07 | |||
| EW X Rumination | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .22 | .53 | .22 | 2.47 | .02 | |||
| R2 Model | .30 | .41 | .45 | .39 | ||||||||||||||||
| 8-month Outcomes (T3) | ||||||||||||||||||||
| IES-R (Model 5) | BDI (Model 6) | LOSROS (Model 7) | IES-R (Model 8) | |||||||||||||||||
| Constant | .09 | .13 | .71 | .48 | .73 | 1.39 | .52 | .60 | .82 | .24 | 3.33 | < .001 | .71 | .06 | 10.68 | < .001 | ||||
| IES-R-T1 | .48 | .41 | .08 | 5.09 | < .001 | -- | -- | -- | -- | -- | -- | -- | -- | .25 | .21 | .11 | 1.81 | .07 | ||
| BDI-T1 | -- | -- | -- | -- | .54 | .46 | .08 | 5.51 | < .001 | -- | -- | -- | -- | .42 | .03 | .01 | 2.91 | < .001 | ||
| LOSROS-T1 | -- | -- | -- | -- | -- | -- | -- | -- | .65 | .56 | .07 | 7.36 | < .001 | -- | -- | -- | ||||
| EW | .17 | .25 | .14 | 1.72 | .09 | .12 | 2.07 | 1.73 | 1.19 | .24 | .07 | .17 | .23 | .744 | .45 | .21 | .30 | .13 | 2.17 | .03 |
| Rumination | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | −.08 | −.09 | .16 | −.60 | .54 | |||
| EW X Rumination | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .25 | .63 | .25 | 2.54 | .01 | |||
| R2 Model | .26 | .26 | .40 | .33 | ||||||||||||||||
Note. IES-R = Impact of Event Scale-Revised, combined hyperarousal-intrusion subscales; BDI= Beck Depression Inventory; LOSROSROS = Loss of Self, Rediscovery of Self scale T1 = Initial study visit. EW = Expressive Writing. For the EW contrast reported here, both the TEW and NEW groups were coded .33, and the Control group was coded −.66. R2 Model = Total variance explained in the follow-up outcome with all variables included in the model.