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61. AHRQ Slide Template 2019-Regular (pdf file)
    hcup-us.ahrq.gov/news/exhibit_booth/HCUPOverviewDeck_092921.pdf
    March 10, 2021 - years and older adults. 2008, 2010, 2012, 2014, 2016, 2017 NEDS, Stat Brief #263 COVID-19- related analyses … and 8.9 percent of costs for all nonobstetric stays. 2017 SID, Stat Brief #259 Opioid- related analyses … Nationwide Databases to Produce National Estimates * The NRD is not designed to support regional analyses … Readmission analyses possible in some States. … Structure Files Contain Measures of Hospital Competition HCUP NIS Ownership Files Facilitate �Analyses

62. NASS Overview
    hcup-us.ahrq.gov/nassoverview.jsp
    February 01, 2025 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … there were some NASS design changes between 2016–2019 that will cause some discontinuity in multi-year analyses … status) Return to Contents   Using the NASS for Trending When conducting longitudinal analyses … For the subset of CCS-Services and Procedures categories affected by NASS design changes, trend analyses … of a file marking different steps while preparing it for analysis and more versions for the actual analyses

63. NIS Database Documentation
    hcup-us.ahrq.gov/db/nation/nis/nisdbdocumentation.jsp
    April 01, 2025 - Its large sample size is ideal for developing national and regional estimates and enables analyses of

64. Enhanced State Data Grants
    hcup-us.ahrq.gov/datainnovations/grants.jsp
    July 01, 2016 - health records with missing Social Security numbers and names Constructed a database for conducting analyses … Additional analyses are currently under peer review. … clinically enhanced database, the research team has compared comparative risk-adjusted outcomes and analyses … alternative revascularization procedures using the clinically enhanced administrative database with analyses … The New York team conducted analyses that compared outcome measures, risk-adjustment models, comparative

65. HCUPnet
    hcup-us.ahrq.gov/news/exhibit_booth/hcupnet_brochure.jsp
    May 01, 2018 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … Expand Your Analyses Use HCUP Tools. … HCUPnet incorporates several AHRQ products into its analyses, including the Clinical Classification Software

66. 1993-2002 Nationwide Inpatient Sample (NIS) Supplemental Discharge-Level Files
    hcup-us.ahrq.gov/db/nation/nis/nistrends2.jsp
    January 01, 2018 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … Analyses of time trends using the HCUP NIS are recommended from 1993 forward. … The trend weights were developed for trends analysis, but they can be used for all analyses, as is done … the 1993-2002 NIS Supplemental Discharge Level-Files is to ease the burden on researchers conducting analyses

67. HCUP Nationwide Inpatient Sample Design Report 1993
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1993_Design_Report.jsp
    January 01, 1993 - 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

68. Frequently Asked Questions for Coronary Procedures Project
    hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/ny14.jsp
    September 01, 2014 - 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 Cost

69. Release of the 2018 National Inpatient Sample (NIS) (November 2020)
    hcup-us.ahrq.gov/news/announcements/nis2018.jsp
    November 18, 2020 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … The large size of the NIS enables analyses of infrequent conditions, uncommon treatments, and special

70. AHRQ releases 2019 Nationwide Emergency Department Sample (NEDS)(October 2021)
    hcup-us.ahrq.gov/news/announcements/neds2019_Oct21.jsp
    October 20, 2021 - 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

71. AHRQ releases 2019 Kids' Inpatient Database (KID) (October 2021)
    hcup-us.ahrq.gov/news/announcements/kid2019.jsp
    October 20, 2021 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … The large size of the KID enables analyses of infrequent conditions, uncommon treatments, and special

72. AHRQ releases 2019 National Inpatient Sample (NIS) (September 2021)
    hcup-us.ahrq.gov/news/announcements/nis2019.jsp
    September 22, 2021 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … The large size of the NIS enables analyses of infrequent conditions, uncommon treatments, and special

73. AHRQ releases Cost-to-Charge Ratio (CCR) Files for the Nationwide Emergency Department Sample (NEDS)(October 2021)
    hcup-us.ahrq.gov/news/announcements/ccr_neds2019.jsp
    October 01, 2021 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … For some analyses, users may be interested in estimating how hospital charges translate into actual costs

74. AHRQ releases 2020 Nationwide Readmissions Database (NRD) and Cost to Charge Ratio (NRD CCR) Files (December 2022)
    hcup-us.ahrq.gov/news/announcements/nrd2020.jsp
    December 01, 2022 - 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

75. AHRQ releases 2020 National Inpatient Sample (NIS) (September 2022)
    hcup-us.ahrq.gov/news/announcements/nis2020.jsp
    September 21, 2022 - Cost-to-Charge Ratio (CCR) Files Hospital Market Structure (HMS) Files Supplemental Variables for Revisit Analyses … The large size of the NIS enables analyses of infrequent conditions, uncommon treatments, and

76. Healthcare Cost and Utilization Project (HCUP) NASS Notes
    hcup-us.ahrq.gov/db/vars/discwt/nassnote.jsp
    August 01, 2019 - 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

77. Newsletter December 2019
    hcup-us.ahrq.gov/news/newsletters/newsltrQ4_2019.jsp
    January 01, 2019 - The Multi-year Analysis Tutorial presents solutions that may be necessary when conducting analyses … the 2018 QDR, the steps taken to apply the AHRQ Quality Indicators™ (QIs) to the HCUP data, and other analyses … Can I use the NASS for State-level analyses as well? … Can I use the NASS for State-level analyses as well? … For users interested in ambulatory surgery analyses at the State-level, we recommend using the SASD.

78. 2017-01 (pdf file)
    hcup-us.ahrq.gov/reports/methods/2017-01.pdf
    January 01, 2017 - The NRD is designed to be flexible to various types of analyses of national readmissions for all types … Importantly, analyses must incorporate statistical precision of national estimates based on the NRD … It is designed to be flexible to various types of analyses of readmissions. … However, the NRD is not designed to support regional, State-, or hospital-specific readmission analyses … The definitions of the readmission rate were specific to the purpose of the analyses.

79. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2005
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2005.jsp
    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 … 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.

80. Newsletter Winter 2021
    hcup-us.ahrq.gov/news/newsletters/newsltrQ4_2021.jsp
    January 01, 2021 - The NRD is designed to support various types of analyses of national readmission rates for all patients … For some analyses, users may be interested in estimating how hospital charges translate into actual costs … to create new data elements from existing data, thereby enhancing a researcher's ability to conduct analyses … 2018 HCUP data for the 2021 NHQDR, the steps taken to apply the AHRQ QIs to the HCUP data, and other analyses … For that reason, we do not recommend applying the indices for analyses of outpatient administrative data