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The BDI-II may provide additional information for clinicians when examining the three-factor model with veterans in polytrauma settings.

The purpose of the study was to examine the relationship of posttraumatic growth (PTG) on symptoms of depression. Previous research has demonstrated a curvilinear relationship between PTG and stress response. It was hypothesized that there would be a curvilinear relationship between domains of PTG on symptoms of depression. A sample of 269 veterans being treated for PTSD was used for this study. All subjects were administered the Posttraumatic Growth Inventory (PTGI), and Beck Depression Inventory-II (BDI-II) as part of the patient's treatment in a residential trauma-focused treatment program for Veterans. Unlike previous studies that have found either curvilinear or no relationship between PTG and depression, the results of this study revealed a negative linear relationship between BDI-II and PTGI domain scores. A quadratic relationship was also explored and did not provide a better explanation for the data. The findings suggest that there was a negative linear relationship between depression symptoms and self-reported PTG. Higher scores on the BDI-II were related to lower PTGI scores. One possibility for the linear relationship findings compared with the previous studies is the use of a larger clinical sample with a greater range of depressive symptomatology and of reported growth in this study. Another factor is the measurements were obtained right after residential treatment. Recent treatment may have accentuated the relationship of depression to growth.

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