Patient Demographics by Emergency Department Visits.

Abbreviations: IQR, interquartile range; MI, myocardial infarction; COPD, chronic obstructive pulmonary disease; TIA, transient ischemic attack; PTSD, post-traumatic stress disorder; PCP, primary care provider.aSixty-nine percent (69%) were missing this variable.bComposite of major depression, bipolar, schizophrenia and PTSD.cBecause of the small number of veterans in these groups, they were combined: active military personnel, CAV/NPS, ChampVA spouse and children, non-Veteran humanitarian groups, merchant marines, and Tricare.