The structure and intensity of self-reported autonomic arousal symptoms across anxiety disorders and obsessive-compulsive disorder.

Background: Heightened autonomic arousal symptoms (AAS) are assumed to be a central feature of anxiety disorders. However, it is unclear whether the magnitude and profile of AAS vary across anxiety disorders and whether heightened AAS characterises obsessive-compulsive disorder (OCD).

Aims: We sought to determine whether the intensity and structure of AAS varied across anxiety disorders and OCD.