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Activity Number:
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285
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Type:
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Contributed
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Date/Time:
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Tuesday, August 4, 2009 : 8:30 AM to 10:20 AM
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Sponsor:
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Section on Health Policy Statistics
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| Abstract - #304219 |
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Title:
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Hospital Mortality Rates analyzed through Empirical Mode Decomposition Method.
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Author(s):
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Boguslaw Skierczynski*+ and David Pryor and Ann Hendrich
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Companies:
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Ascension Health and Ascension Health and Ascension Health
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Address:
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4600 Edmundson RD, St. Louis, MO, 63134,
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Keywords:
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qUALITY MEASUREMENT ; mortality ; EDM
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Abstract:
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Mortality is an important outcome to monitor in an quality work of health care delivery systems. The severity of illnesses of patients, seasonal variation, and other variables can confound assessment and obscure delineation of underlying trends over time. In this presentation we applied Empirical Mode Decomposition (EDM) to time series of hospital mortality rates from all acute care hospitals within Ascension Health System to discover underlying trends. The overall mortality rates show decline trend over past several years, with greatest decline rate following clinical transformation introduced within our System as well as very strong seasonal variations component.
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