The three-factor structure of PTSD specified by the DSM-IV is not supported in the empirical literature. Two alternative four-factor models have received a wealth of empirical support. However, a consensus regarding which is superiorhas not been reached. A recent five-factor model has been shown to provide superior fit over the existing four-factor models. The present study investigated the fit of the five-factor model against the existing four-factor models and assessed the resultant factors association with depression in a bereaved European trauma sample (N=325). Participants were assessed for PTSD via the Harvard Trauma Questionnaire and depression via the Beck Depression Inventory. The five-factor model provided superior fit to the data compared to the existing four-factor models. In the Dysphoric Arousal model depression was equally related to both Dysphoric Arousal and Emotional Numbing whereas depression was more related to Dysphoric Arousal than to Anxious Arousal.
Journal of Nervous and Mental Disease, 2013, Vol 201, Issue 10, p. 901-906
Aged Aged, 80 and over Anxiety/classification/psychology Arousal/classification/physiology Bereavement Denmark Depression/classification/psychology Emotions/classification/physiology Factor Analysis, Statistical Female Humans Life Change Events Male *Models, Psychological Psychiatric Status Rating Scales Questionnaires Stress Disorders, Post-Traumatic/classification/*psychology Survivors/psychology