Abstract P387: Length of Stay Among Medicare Beneficiaries Hospitalized with Heart Failure
Background: Heart failure (HF) is among the most common reasons for hospitalization in the United States. Hospital length of stay (LOS) is a driver of cost and disease burden. Objectives: To examine factors associated with LOS of HF hospitalizations. Methods: Medicare beneficiaries with fee-for-service and pharmacy coverage who had HF hospitalizations (inpatient claims with ≥1 overnight stay/2 hospital days with HF as the primary discharge diagnosis, discharged alive) between 2007 and 2011 were identified in the Medicare national 5% sample. The median and interquartile range (IQR) LOS was calculated by demographic characteristics, comorbidities, and discharge status based on Medicare claims data with the Kruskal-Wallis test to compare distributions in the overall population with HF (n = 45,584) and in the subpopulation with documented systolic dysfunction (n = 10,256). Results: The median LOS was 5 days (range 2-255, IQR 4-8 days) in the overall HF population and 5 days (range 2-204, IQR 4-8 days) in those with systolic dysfunction. Across most demographic characteristics and comorbidities, the median LOS was 5 days but was higher among nursing home residents and individuals with malnutrition in both groups and with chronic kidney disease in those with systolic dysfunction (Figure). All comorbidities were associated with a shift in the distribution toward longer LOS in the population with systolic dysfunction and all but coronary heart disease in the overall population (p < 0.001). HF patients discharged to a skilled nursing facility had longer LOS (median 7 days, IQR 5-10 days) versus other discharge statuses (median 5 days, IQR 3-7 days, p < 0.001) in both populations. Conclusions: In patients hospitalized for HF, the median LOS was 5 days across most comorbidities and other characteristics, but comorbidities were associated with a shift in the upper tail of the distribution toward longer LOS. Worse functional status (nursing residence or discharge to a skilled nursing facility) was associated with a higher median LOS.
Author Disclosures: E.B. Levitan: B. Research Grant; Significant; Amgen Inc. M.K. Van Dyke: A. Employment; Significant; Amgen Inc. L. Chen: B. Research Grant; Significant; Amgen Inc. M.L. Kilgore: B. Research Grant; Significant; Amgen Inc. T.M. Brown: B. Research Grant; Modest; Amgen Inc. R.W. Durant: B. Research Grant; Modest; Amgen Inc. M.M. Safford: B. Research Grant; Significant; Amgen Inc.
- © 2015 by American Heart Association, Inc.