Background Homelessness is believed to be a cause of healthproblems and high medical costs, but data supporting this associationhave been difficult to obtain. We compared lengths of stay andreasons for hospital admission among homeless and other low-incomepersons in New York City to estimate the hospitalization costsassociated with homelessness.
Methods We obtained hospital-discharge data on 18,864 admissionsof homeless adults to New York City's public general hospitals(excluding admissions for childbirth) and 383,986 nonmaternityadmissions of other low-income adults to all general hospitalsin New York City during 1992 and 1993. The differences in lengthof stay were adjusted for diagnosis-related group, principaldiagnosis, selected coexisting illnesses, and demographic characteristics.
Results Of the admissions of homeless people, 51.5 percent werefor treatment of substance abuse or mental illness, as comparedwith 22.8 percent for the other low-income patients, and another19.7 percent of the admissions of homeless people were for trauma,respiratory disorders, skin disorders, and infectious diseases(excluding the acquired immunodeficiency syndrome [AIDS]), manyof which are potentially preventable medical conditions. Forthe homeless, 80.6 percent of the admissions involved eithera principal or a secondary diagnosis of substance abuse or mentalillness roughly twice the rates for the other patients.The homeless patients stayed 4.1 days, or 36 percent, longerper admission on average than the other patients, even afteradjustments were made for differences in the rates of substanceabuse and mental illness and other clinical and demographiccharacteristics. The costs of the additional days per dischargeaveraged $4,094 for psychiatric patients, $3,370 for patientswith AIDS, and $2,414 for all types of patients.
Conclusions Homelessness is associated with substantial excesscosts per hospital stay in New York City. Decisions to fundhousing and supportive services for the homeless should takeinto account the potential of these services to reduce the highcosts of hospitalization in this population.
Source Information
From the New York City Health and Hospitals Corporation, New York (S.A.S., J.M.V., A.L.M.); the Department of Emergency Medicine, Medical College of Wisconsin, Milwaukee (E.M.K.); and the Department of Family Medicine and the Public Policy Center, University of Iowa, Iowa City (A.J.H.).
Address reprint requests to Ms. Salit at the United Hospital Fund, Empire State Bldg., 350 Fifth Ave., 23rd Fl., New York, NY 10118.
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