Emergency Department Use Among the Homeless and Marginally Housed: Results From a Community-Based Study
Margot B. Kushel, MD,
Sharon Perry, PhD,
David Bangsberg, MD, MPH,
Richard Clark, MPH and
Andrew R Moss, PhD
Margot B. Kushel is with the Division of General Internal Medicine, University of California at San Francisco/San Francisco General Hospital, San Francisco, Calif. Sharon Perry, David Bangsberg, Richard Clark, and Andrew R. Moss are with the Department of Epidemiology and Biostatistics, University of California at San Francisco. David Bangsberg is also with the Division of Infectious Diseases, Department of Medicine, University of California at San Francisco/San Francisco General Hospital.
Correspondence: Requests for reprints should be sent to Margot B. Kushel, MD, Division of General Internal Medicine, UCSF/San Francisco General Hospital, Box 1364, San Francisco, CA 94143 (e-mail: kushel{at}itsa.ucsf.edu).
Objectives. This study examined factors associated with emergencydepartment use among homeless and marginally housed persons.
Methods. Interviews were conducted with 2578 homeless and marginallyhoused persons, and factors associated with different patternsof emergency department use were assessed in multivariate models.
Results. Findings showed that 40.4% of respondents had 1 ormore emergency department encounters in the previous year; 7.9%exhibited high rates of use (more than 3 visits) and accountedfor 54.5% of all visits. Factors associated with high use ratesincluded less stable housing, victimization, arrests, physicaland mental illness, and substance abuse. Predisposing and needfactors appeared to drive emergency department use.
Conclusions. Efforts to reduce emergency department use amongthe homeless should be targeted toward addressing underlyingrisk factors among those exhibiting high rates of use.
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