Journal
HEALTH SERVICES RESEARCH
Volume 48, Issue 2, Pages 499-518Publisher
WILEY
DOI: 10.1111/1475-6773.12001
Keywords
Hospital-based skilled nursing facility; prospective payment policy; instrumental variables; rehospitalization
Funding
- National Institute on Aging [P01AG027296]
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Objective To examine the effect of reductions in hospital-based (HB) skilled nursing facility (SNF) bed supply on the rate of rehospitalization of patients discharged to any SNF from zip codes that lost HB beds. Data Source We used Medicare enrollment records, Medicare hospital and SNF claims, and nursing home Minimum Dataset assessments and characteristics (OSCAR) to examine nearly 10million Medicare fee-for-service hospital discharges to SNFs between 1999 and 2006. Study Design We calculated the number of HB and freestanding (FS) SNF beds within a 22km radius from the centroid of all zip codes in which Medicare beneficiaries reside in all years. We examined the relationship between HB and FS bed supply and the rehospitalization rates of the patients residing in corresponding zip codes in different years using zip code fixed effects and instrumental variable methods including extensive sensitivity analyses. Principal Findings Our estimated coefficients suggest that closure of 882 HB homes during our study period resulted in 12,00018,000 extra rehospitalizations within 30days of discharge. The effect was largely concentrated among the most acutely ill, high-need patients. Conclusions SNF patient-based prospective payment resulted in closure of higher cost HB facilities that had served most postacute patients. As other, less experienced SNFs replaced HB facilities, they were less able to manage high acuity patients without rehospitalizing them.
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