title: Predicting the Incremental Hospital Cost of Adverse Events Among Medicare Beneficiaries in the Comprehensive Joint Replacement Program During Fiscal Year 2014.
abstract: The Medicare program's Comprehensive Care for Joint Replacement (CJR) payment model places hospitals at financial risk for the treatment cost of Medicare beneficiaries (MBs) undergoing lower extremity joint replacement (LEJR).
  
  
  
  This study uses Medicare Provider Analysis and Review File and identified 674,777 MBs with LEJR procedure during fiscal year 2014. Adverse events (death, acute myocardial infarction, pneumonia, sepsis or shock, surgical site bleeding, pulmonary embolism, mechanical complications, and periprosthetic joint infection) were studied. Multivariable regressions were modeled to estimate the incremental hospital cost of treating each adverse event.
  
  
  
  The risk-adjusted estimated hospital cost of treating adverse events varied from a high of $29,061 (MBs experiencing hip fracture and joint infection) to a low of $6308 (MBs without hip fracture that experienced pulmonary embolism).
  
  
  
  Avoidance of adverse events in the LEJR hospitalization will play an important role in managing episode hospital costs in the Comprehensive Care for Joint Replacement program.
authors.affiliation: Rollins School of Public Health, Emory University, Atlanta, Georgia.
authors.forename: Steven D
authors.initials: SD
authors.lastname: Culler
authors.affiliation: Department of Orthopaedics, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire.
authors.forename: David S
authors.initials: DS
authors.lastname: Jevsevar
authors.affiliation: Beth Israel Deaconess Medical Center, Boston, Massachusetts.
authors.forename: Kevin J
authors.initials: KJ
authors.lastname: McGuire
authors.affiliation: St Luke's Health System, Boise, Idaho; Department of Orthopedics, University of Utah, Salt Lake, Utah.
authors.forename: Kevin G
authors.initials: KG
authors.lastname: Shea
authors.affiliation: St Luke's Health System, Boise, Idaho.
authors.forename: Kenneth M
authors.initials: KM
authors.lastname: Little
authors.affiliation: Clinical Data Solutions, A Division of HealthTrust Purchasing Group, LLP, Nashville, Tennessee.
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Schlosser
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019643:Arthroplasty, Replacement / Q000009:adverse effects / Q000191:economics*; D005260:Female; D005102:Health Expenditures; D006620:Hip Fractures / Q000191:economics* / Q000601:surgery; D017721:Hospital Costs; D006761:Hospitals; D006801:Humans; D008297:Male; D006278:Medicare / Q000191:economics; D008875:Middle Aged; D009203:Myocardial Infarction; D011183:Postoperative Complications / Q000191:economics* / Q000209:etiology; D011655:Pulmonary Embolism; D014481:United States
keywords: Medicare reimbursement; THA; TKA; adverse events; hip fracture; hospital cost