The Long-term Impact of Medicare Payment Reductions on Patient Outcomes
NBER Working Paper No. 16859
This study examines the long term impact of Medicare payment reductions on patient outcomes using a natural experiment - the Balance Budget Act (BBA) of 1997. We use predicted Medicare revenue changes due to BBA, with simulated BBA payment cuts as an instrument, to categorize hospitals by degrees of payment cuts (small, moderate, or large), and follow Medicare patient outcomes in these hospitals over a 11 year panel: 1995-1997 pre-BBA, 1998-2000 initial years of BBA, and 2001-2005 post-BBA years. We find that Medicare AMI mortality trends stay similar across hospitals when comparing between pre-BBA and initial-BBA periods. However, the trends began to diverge in 2001-2005: hospitals facing large payment cuts saw increased mortality rates relative to that of hospitals facing small cuts in the post-BBA period (2001-2005) after controlling for their pre-BBA trends. We find support that part of the higher AMI mortalities among large-cut hospitals are explained by reductions in staffing level and operating cost following the payment cuts.
This paper was revised on April 4, 2012
Document Object Identifier (DOI): 10.3386/w16859
Published: Vivian Y. Wu & Yu-Chu Shen, 2014. "Long-Term Impact of Medicare Payment Reductions on Patient Outcomes," Health Services Research, vol 49(5), pages 1596-1615.
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