title: Trauma and chronic depression among patients with anxiety disorders.
abstract: This study examined the relationship between a history of trauma and the features and persistence of major depression (MDD) in patients with anxiety disorders. The study found that, among 408 patients with an anxiety disorder and past or current MDD, those patients who reported a history of trauma had a greater number of previous episodes of major depression than those patients without trauma histories. Also, of 174 patients with an anxiety disorder and current major depression, patients who reported histories of trauma, compared with patients who did not report such experiences, were less likely to remit from MDD over a 5-year period. Results suggest that a history of trauma is a risk factor for chronic depression.
authors.affiliation: Butler Hospital, Brown University, Providence, Rhode Island 02906, USA.
authors.forename: C
authors.initials: C
authors.lastname: Zlotnick
authors.forename: M
authors.initials: M
authors.lastname: Warshaw
authors.forename: M T
authors.initials: MT
authors.lastname: Shea
authors.forename: M B
authors.initials: MB
authors.lastname: Keller
mesh_terms: D000328:Adult; D001008:Anxiety Disorders / Q000453:epidemiology*; D016009:Chi-Square Distribution; D015897:Comorbidity; D003866:Depressive Disorder / Q000175:diagnosis* / Q000453:epidemiology*; D006801:Humans; D011379:Prognosis; D016016:Proportional Hazards Models; D011446:Prospective Studies; D012189:Retrospective Studies; D013313:Stress Disorders, Post-Traumatic / Q000453:epidemiology; D016019:Survival Analysis