Transdiagnostic mechanism of social phobia and depression: The role of anger dysregulation

ABSTRACT

Emotion dysregulation has been identified as a transdiagnostic mechanism underlying social phobia and depression; however, there is much to learn about how emotion dysregulation leads to these specific outcomes. Thus, this study examined the relationship pattern between anger dysregulation and depression and how it is mediated by social phobia. Anger dysregulation was examined specifically considering anger as a significant emotional feature of both social phobia and depression. The mediation hypothesis within this study was empirically established. The data was drawn from the Collaborative Psychiatric Epidemiology Surveys (2001–2003), in which 2,827 participants met DSM-IV criteria for lifetime major depressive disorder (14.3%), and 1,905 participants met criteria for DSM-IV lifetime social anxiety disorder (9.6%). Among participants, 4,250 (21.5%) reported that they perceived their anger as out of control and either broke items or hit (or tried to hit) others. The mediation hypothesis was tested with logistic regression models. Anger dysregulation was significantly related to social phobia and depression. A significant indirect effect of social phobia was detected through bootstrap analysis, supporting the partial mediation hypothesis. This study represents the first attempt to examine the mediating role of social phobia in the relationship between anger dysregulation and depression. The findings of this study suggest that anger dysregulation may be a transdiagnostic factor across social phobia and depression.