“…From the NCS-R data, Kessler et al [47] reported 45.0% comorbidity with other anxiety disorders in their PA-only group (i.e., PAs without a history of PD or agoraphobia), with highest comorbidity rates for specific phobia (21.0%) and social phobia (18.8%). Other studies have suggested that the presence of panic symptoms at the time of a traumatic event (i.e., a ''cued'' PA in response to trauma) may be associated with higher rates of an ensuing acute stress disorder [48,49] or posttraumatic stress disorder [50][51][52] compared to individuals who do not show panic symptomatology at trauma. As discussed by, [48] the association of PAs and acute stress disorder may be explained by an overlap in their symptomatology (e.g., derealization, fear of dying), a common predisposition to develop both conditions, and PAs intensifying the level of stress during the traumatic event.…”