Table 2. Determinants of the delta-rGMV value of the peak voxel in the significant cluster: multiple regression analyses.
| Dependent variables | Independent variables | R | Adjusted R2 | F | β | VIF |
|---|---|---|---|---|---|---|
| The delta-rGMV value of the peak voxel (54, 38, 25) in the significant cluster | Relating to others | 0.890 | 0.674 | 6.738** | 0.778*** | 1.271 |
| CAPS | −0.428* | 1.711 | ||||
| CES-D | 0.173 | 3.451 | ||||
| Trait-anxiety | −0.123 | 3.615 | ||||
| Sex | 0.103 | 3.152 | ||||
| Age | 0.249 | 1.613 | ||||
| RAPM | 0.721*** | 1.374 | ||||
| Total intracranial volume | 0.093 | 3.840 | ||||
| Interval between the pre- and post-assessments | −0.336* | 1.558 | ||||
| The delta-rGMV value of the peak voxel (54, 42, 22) in the significant cluster | PTG | 0.852 | 0.573 | 4.724 | 0.744** | 1.219 |
| CAPS | −0.418* | 1.696 | ||||
| CES-D | 0.309 | 3.449 | ||||
| Trait-anxiety | −0.196 | 3.585 | ||||
| Sex | 0.073 | 3.069 | ||||
| Age | −0.013 | 1.610 | ||||
| RAPM | 0.680*** | 1.354 | ||||
| Total intracranial volume | −0.162 | 3.805 | ||||
| Interval between the pre- and post-assessments | −0.269 | 1.554 |
Significance: *P < 0.05, **P < 0.01, ***P < 0.001. Abbreviation: CAPS, Clinician-administered PTSD Scale; CES-D, Center for Epidemiologic Studies Depression Scale; delta-rGMV, delta- regional grey matter volume; DLPFC, dorsolateral prefrontal cortex; PTG, post-traumatic growth; RAPM, Raven’s Advanced Progressive Matrix; VIF, variance inflation factor.