title: Ambulatory visits to hospital emergency departments. Patterns and reasons for use. 24 Hours in the ED Study Group.
abstract: OBJECTIVE
  To characterize the reasons ambulatory patients use hospital emergency departments (EDs) for outpatient care and to determine the proportion of ED patients who initially are assessed as having nonurgent conditions, but subsequently are hospitalized.
  
  
  METHODS
  Cross-sectional survey during a single 24-hour period of time.
  
  
  METHODS
  Fifty-six hospital EDs nationwide.
  
  
  METHODS
  Consecutive ambulatory patients presenting for care. Patents who arrived by ambulance were excluded.
  
  
  RESULTS
  Of 6441 ambulatory patients (79 percent of all ED visits) who were eligible for study, interviews were obtained from 6187 (96 percent). A total of 5323 patients (86 percent) had clinical reasons or preferences for seeking care at an ED, including 2799 (45 percent) who thought they had an emergency or an urgent condition or were too sick to go elsewhere. Nineteen percent (n=1199) reported that they were sent to the ED by a health care professional. Patients with a regular clinician or with insurance cited similar reasons for seeking care at an ED. A total of 3062 patients (50 percent) cited 1 or more nonfinancial barriers to care as an important reason for coming to the ED, and 949 (15 percent) cited financial considerations. A total of 3045 patents (49 percent of ambulatory patients and 37 percent of total ED visits) were assessed at triage as having a nonurgent condition; 166 of them (5.5 percent; 95 percent confidence interval, 4.7 percent-6.3 percent) were admitted to the hospital.
  
  
  CONCLUSIONS
  Most ambulatory patients seek care in an ED because of worrisome symptoms or nonfinancial barriers to care. Although many ambulatory patients appear to have nonurgent conditions based on triage classification, a small but disturbing percentage of nonurgent patients are hospitalized.
authors.affiliation: Department of Emergency Medicine, Highland General Hospital, Oakland, CA 94602, USA.
authors.forename: G P
authors.initials: GP
authors.lastname: Young
authors.forename: M B
authors.initials: MB
authors.lastname: Wagner
authors.forename: A L
authors.initials: AL
authors.lastname: Kellermann
authors.forename: J
authors.initials: J
authors.lastname: Ellis
authors.forename: D
authors.initials: D
authors.lastname: Bouley
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000553:Ambulatory Care / Q000706:statistics & numerical data*; D002648:Child; D002675:Child, Preschool; D016001:Confidence Intervals; D003430:Cross-Sectional Studies; D003710:Demography; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data*; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D007223:Infant; D007348:Insurance, Health; D008297:Male; D008875:Middle Aged; D014218:Triage; D014481:United States