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7.
Centers for Medicare & Medicaid Services.Final DRG weight version 22, Table5FR05. http://www.cms.hhs.gov/AcuteInpatientPPS/FFD/itemdetail.asp?filterType=none&filterByDID=99&sortByDID=2&sortOrder=ascending&itemID=CMS022597&intNumPerPage=10 Accessed December 5, 2007. (Note: We selected version 22 to match the study population.)
8.
Peng MM, Kurtz S., Johannes RSAdverse outcomes from hospital-acquired infection in Pennsylvania cannot be attributed to increased risk on admission. Am J Med Qual.2006;21 (6)(suppl):17S-28S.
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Centers for Medicare & Medicaid Services, Department of Health and Human Services.42 CFR § 412 and 413 Medicare Program; Changes to the Hospital Inpatient Prospective Payment Systems and Fiscal Year 2004 Rates; Final Rule. Fed Regist.2003;68(148):45488. (Note: The average payment is the sum of the labor-related and non-labor-related portions of the national adjusted operating standardized amount for fiscal year 2004. We selected rates from fiscal year 2004 to match the study population.)