Association Between Medicare Expenditure Growth and Mortality Rates in Patients With Acute Myocardial Infarction

作者：Donald S. Likosky, Jessica Van Parys, Weiping Zhou, William B. Borden, Milton C. Weinstein, Jonathan Skinner · 发表于：JAMA Cardiology · 年份：2017 · DOI：10.1001/jamacardio.2017.4771 · 被引用次数：36 · 研究领域：Global Health Care Issues、Healthcare Policy and Management、Healthcare Systems and Reforms

Importance: Many studies have considered the association between Medicare spending and health outcomes at a point in time; few have considered the association between the long-term growth in spending and outcomes. Objective: To assess whether components of growth in Medicare expenditures are associated with mortality rates between January 1, 1999, and June 30, 2014, for beneficiaries hospitalized for acute myocardial infarction. Design, Setting, and Participants: Cross-sectional analysis of a random 20% sample of fee-for-service Medicare beneficiaries from January 1, 1999, through December 31, 2000 (n=72 473) and January 1, 2004, through December 31, 2004 (n=38 248), and 100% sample from January 1, 2008, through December 31, 2008 (n=159 558) and January 1, 2013, through June 30, 2014 (n=209 614) admitted with acute myocardial infarction to 1220 hospitals. Main Outcomes and Measures: Primary exposure measures include the growth of 180-day expenditure components (eg, inpatient, physician, and postacute care) and early percutaneous coronary intervention by hospitals adjusted for price differences and inflation. The primary outcome is the risk-adjusted 180-day case fatality rate. Results: Patients in each of the years 2004, 2008, and 2013-2014 (relative to those in 1999-2000) were qualitatively of equivalent age, less likely to be white or female, and more likely to be diabetic (all P < .001). Adjusted expenditures per patient increased 13.9% from January 1, 1999, through Decembe...