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81. Welcome to the HCUP Nationwide Emergency Department Sample (NEDS) Overview Webinar! (pdf file)
    hcup-us.ahrq.gov/Web2Spring2021NASS_042121_posted.pdf
    January 16, 2020 - surgeries ► Facility and patient characteristics ► Changes over time overall and by payer ► Detailed analyses … surgeries ► Facility and patient characteristics ► Changes over time overall and by payer ► Detailed analyses … surgeries ► Facility and patient characteristics ► Changes over time overall and by payer ► Detailed analyses … surgeries ► Facility and patient characteristics ► Changes over time overall and by payer ► Detailed analyses … surgeries ► Facility and patient characteristics ► Changes over time overall and by payer ► Detailed analyses

82. Nationwide Readmissions Database (NRD)
    hcup-us.ahrq.gov/news/exhibit_booth/nrd_brochure.jsp
    May 01, 2017 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … The NRD is a unique and powerful database designed to support various types of analyses of national readmission … medical practice Health care cost inflation Quality of care and patient safety Expand Your Analyses

83. FAQs for Using Clinically Enhanced Claims Data to Guide Selection of Coronary Procedures (pdf file)
    hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/ny14.pdf
    March 20, 2012 - How relevant are analyses of relatively old retrospective data to current clinical performance? … Initial analyses will be performed using historical data starting with data from January 2008 from hospitals … Judicious use of this information can enable hospitals to address quality issues before more rigorous analyses … Data will be requested for all cases that qualify for inclusion in the study based on preliminary analyses … These standards may be altered as POA coding improves nationally based on analyses of the Hospital

84. Hospital Market Structure Files
    hcup-us.ahrq.gov/toolssoftware/hms/hms.jsp
    March 01, 2022 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … Using the merged data elements, hospital market structure measures can then be included in analyses using … Hospital market structure measures are generally useful for performing empirical analyses that examine

85. NRD Database Documentation
    hcup-us.ahrq.gov/db/nation/nrd/nrddbdocumentation.jsp
    April 01, 2025 - Readmissions Database (NRD) is a unique and powerful database designed to support various types of analyses

86. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2004
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2004.jsp
    January 01, 2004 - In all data years except 2000, this weight is used to create national estimates for all analyses. … DISCWT10 for all analyses 2000 DISCWT to create nationwide estimates for all analyses … DISCWT10 for all analyses 1988 - 1997 DISCWT_U for all analyses D10CWT_U for … For trends analysis, it is recommended that analyses begin with the 1993 data year. … HCUP Fact Books report aggregate statistics and detailed analyses using HCUP data.

87. HCUP-US SID Overview
    hcup-us.ahrq.gov/sidoverview.jsp
    January 01, 2025 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … in participating States, translated into a uniform format to facilitate multi-State comparisons and analyses … State, to compare data from two or more States, to conduct market area research or small variation analyses

88. AHRQ releases 2020 Nationwide Emergency Department Sample (NEDS) and Cost to Charge Ratio (NEDS CCR) Files
    hcup-us.ahrq.gov/news/announcements/neds2020.jsp
    October 19, 2022 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … It enables analyses of ED utilization patterns and supports public health professionals, administrators

89. Healthcare Cost and Utilization Project (HCUP) NEDS Notes
    hcup-us.ahrq.gov/db/vars/cptn/nedsnote.jsp
    May 01, 2015 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … did not consider the quality of the CPT information to be reliable and did not use CPT codes in their analyses … New York used only the ICD-9-CM codes for analyses.

90. Kids' Inpatient Database (KID)
    hcup-us.ahrq.gov/news/exhibit_booth/kid_brochure.jsp
    May 01, 2018 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … It also enables analyses of rare conditions, such as congenital anomalies, as well as uncommon treatments … Expand Your Analyses Use HCUP Tools.

91. KID Database Documentation
    hcup-us.ahrq.gov/db/nation/kid/kiddbdocumentation.jsp
    April 01, 2025 - Its large sample size is ideal for developing national and regional estimates and enables analyses of

92. HCUP Nationwide Inpatient Sample Design Report 1995
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1995_Design_Report.jsp
    January 01, 1995 - Thus, the NIS supports both cross-sectional and longitudinal analyses. … Therefore, sample weights were developed separately for hospital- and discharge-level analyses. … All of these discharge weights can be rescaled if necessary for selected analyses, to sum to the NIS … Given that a very large number of observations will be available for most analyses, it may be feasible … Consequently, longitudinal analyses of hospital-level outcomes may be biased if they are based on any

93. HCUP Nationwide Inpatient Sample Design Report 1994
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1994_Design_Report.jsp
    January 01, 1994 - Thus, the NIS supports both cross-sectional and longitudinal analyses. … Therefore, sample weights were developed separately for hospital- and discharge-level analyses. … All of these discharge weights can be rescaled if necessary for selected analyses, to sum to the NIS … Given that a very large number of observations will be available for most analyses, it may be feasible … Consequently, longitudinal analyses of hospital-level outcomes may be biased if they are based on any

94. HCUP Nationwide Inpatient Sample Design Report 1997
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1997_Design_Report.jsp
    January 01, 1997 - Therefore, sample weights were developed separately for hospital- and discharge-level analyses. … All of these discharge weights can be rescaled if necessary for selected analyses, to sum to the NIS … Given that a very large number of observations will be available for most analyses, it may be feasible … Return to Contents Longitudinal Analyses As previously shown in Table 0, hospitals that continue … Consequently, longitudinal analyses of hospital-level outcomes may be biased if they are based on any

95. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
    hcup-us.ahrq.gov/reports/methods/2005-07.pdf
    January 01, 2005 - Several statistical programming packages allow weighted analyses. … Types of Estimands and Statistical Analyses That Can Be Accommodated. … Types of Estimands and Statistical Analyses That Can Be Accommodated. … Types of Estimands and Statistical Analyses That Can Be Accommodated. … Types of Estimands and Statistical Analyses That Can Be Accommodated.

96. HCUP Nationwide Inpatient Sample Design Report 1996
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1996_Design_Report.jsp
    January 01, 1996 - 5 1996 19 906 6.5 Thus, the NIS supports both cross-sectional and longitudinal analyses … Therefore, sample weights were developed separately for hospital- and discharge-level analyses. … All of these discharge weights can be rescaled if necessary for selected analyses, to sum to the NIS … Given that a very large number of observations will be available for most analyses, it may be feasible … Consequently, longitudinal analyses of hospital-level outcomes may be biased if they are based on any

97. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
    hcup-us.ahrq.gov/db/nation/kid/reports/CalculatingKIDVariances.pdf
    December 16, 2005 - Several statistical programming packages allow weighted analyses. … Types of Estimands and Statistical Analyses That Can Be Accommodated. … Types of Estimands and Statistical Analyses That Can Be Accommodated. … Types of Estimands and Statistical Analyses That Can Be Accommodated. … Types of Estimands and Statistical Analyses That Can Be Accommodated.

98. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2005.pdf
    January 01, 2005 - (Analyses of time trends are recommended from 1993 forward. …  DISCWT10 for all analyses 2000  DISCWT to create nationwide estimates for all analyses except …  DISCWT10 for all analyses 1988-1997  DISCWT_U for all analyses  D10CWT_U for all analyses … For trends analysis, it is recommended that analyses begin with the 1993 data year. … HCUP Fact Books report aggregate statistics and detailed analyses using HCUP data.

99. Nis 1998 Design Report (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1998_Design_Report.pdf
    January 01, 1998 - .................................................................................. 16 Longitudinal Analyses … Therefore, sample weights were developed separately for hospital- and discharge-level analyses. … Given that a very large number of observations will be available for most analyses, it may be feasible … Consequently, longitudinal analyses of hospital-level outcomes may be biased if they are based on any … One approach to consider in hospital-level longitudinal analyses is to use repeated-measure models that

100. Healthcare Cost and Utilization Project (HCUP) KID Notes
     hcup-us.ahrq.gov/db/vars/uncbwtcharge/kidnote.jsp
     September 01, 2008 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … DISCWT should be used to create national estimates for all analyses except those that involve total charge