Background Reducing rates of rehospitalization has attractedattention from policymakers as a way to improve quality of careand reduce costs. However, we have limited information on thefrequency and patterns of rehospitalization in the United Statesto aid in planning the necessary changes.
Methods We analyzed Medicare claims data from 2003–2004to describe the patterns of rehospitalization and the relationof rehospitalization to demographic characteristics of the patientsand to characteristics of the hospitals.
Results Almost one fifth (19.6%) of the 11,855,702 Medicarebeneficiaries who had been discharged from a hospital were rehospitalizedwithin 30 days, and 34.0% were rehospitalized within 90 days;67.1% of patients who had been discharged with medical conditionsand 51.5% of those who had been discharged after surgical procedureswere rehospitalized or died within the first year after discharge.In the case of 50.2% of the patients who were rehospitalizedwithin 30 days after a medical discharge to the community, therewas no bill for a visit to a physician's office between thetime of discharge and rehospitalization. Among patients whowere rehospitalized within 30 days after a surgical discharge,70.5% were rehospitalized for a medical condition. We estimatethat about 10% of rehospitalizations were likely to have beenplanned. The average stay of rehospitalized patients was 0.6day longer than that of patients in the same diagnosis-relatedgroup whose most recent hospitalization had been at least 6months previously. We estimate that the cost to Medicare ofunplanned rehospitalizations in 2004 was $17.4 billion.
Conclusions Rehospitalizations among Medicare beneficiariesare prevalent and costly.
Source Information
From an independent consulting practice, Baltimore (S.F.J.); the Division of Hospital Medicine, Northwestern University Feinberg School of Medicine, Chicago (M.V.W.); and the Care Transitions Program, Division of Health Care Policy and Research, University of Colorado at Denver, Denver (E.A.C.).
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