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  1. hcup-us.ahrq.gov/figures/nis_figure8_2008.jsp
    January 01, 2008 - Figure 8: Number of Hospitals in the 2006 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8: Number of Hospitals in the 2006 Universe, Frame, Sample, Target, and Surplus, by Region Region Hospitals in Universe Hospitals in Frame Hospitals in Target Hospitals in Sample Surplu…
  2. hcup-us.ahrq.gov/figures/nis_figure8_2012.jsp
    January 01, 2012 - Figure 8: Number of Hospitals in the 2010 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8: Number of Hospitals in the 2010 Universe, Frame, Sample, Target, and Surplus, by Region Region Hospitals in Frame Hospitals in Sample Hospitals in Target Hospitals in Universe Surplu…
  3. hcup-us.ahrq.gov/figures/nis_figure8_2011.jsp
    January 01, 2011 - Figure 8: Number of Hospitals in the 2009 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8: Number of Hospitals in the 2009 Universe, Frame, Sample, Target, and Surplus, by Region Region Hospitals in Universe Hospitals in Frame Hospitals in Sample Hospitals in Target Surplu…
  4. hcup-us.ahrq.gov/figures/nis_figure8_2010.jsp
    January 01, 2010 - Figure 8: Number of Hospitals in the 2008 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8: Number of Hospitals in the 2008 Universe, Frame, Sample, Target, and Surplus, by Region Region Hospitals in Universe Hospitals in Frame Hospitals in Sample Hospitals in Target Surplu…
  5. hcup-us.ahrq.gov/figures/nis_figure8_2013.jsp
    January 01, 2013 - Figure 8: Number of Hospitals in the 2011 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8: Number of Hospitals in the 2011 Universe, Frame, Sample, Target, and Surplus, by Region Region Hospitals in Frame Hospitals in Sample Hospitals in Target Hospitals in Universe Surplu…
  6. hcup-us.ahrq.gov/figures/nis_figure8_2009.jsp
    January 01, 2009 - Figure 8: Number of Hospitals in the 2007 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8: Number of Hospitals in the 2007 Universe, Frame, Sample, Target, and Surplus, by Region Region Hospitals in Universe Hospitals in Frame Hospitals in Sample Hospitals in Target Surplu…
  7. hcup-us.ahrq.gov/db/nation/kid/KID_Sources_and_Restrictions_2000.pdf
    January 01, 2000 - Microsoft Word - KID_Sources_and_Restrictions_2000.doc Sources of KID Data and State-Specific Restrictions 2000 HCUP KID (1/28/03) 1 Sources of KID Data and State-Specific Restrictions AZ Arizona Department of Health Services No restrictions CA Office of Statewide Health Planning & …
  8. hcup-us.ahrq.gov/db/vars/s_disc_u/nassnote.jsp
    August 01, 2019 - Healthcare Cost and Utilization Project (HCUP) NASS Notes An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQ…
  9. hcup-us.ahrq.gov/db/vars/s_hosp_u/nassnote.jsp
    August 01, 2019 - Healthcare Cost and Utilization Project (HCUP) NASS Notes An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQ…
  10. hcup-us.ahrq.gov/news/announcements/neds2020.jsp
    October 19, 2022 - AHRQ releases 2020 Nationwide Emergency Department Sample (NEDS) and Cost to Charge Ratio (NEDS CCR) Files An official website of the Department of Health & Human Services Search All AHRQ Websites…
  11. hcup-us.ahrq.gov/reports/methods/2018-01.pdf
    January 01, 2018 - DEPARTMENT RATES FOR SELECTED AHRQ QUALITY INDICATORS The HCUP Nationwide Emergency Department Samples … We consider the SID to be samples from a “super-population” for purposes of variance estimation.
  12. hcup-us.ahrq.gov/figures/8_04.jsp
    Figure 8 : Number of Hospitals in 2004 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8 : Number of Hospitals in 2004 Universe, Frame, Sample, Target, and Surplus, by Region Hospital Region Hospitals in Universe Hospitals in Frame Hospitals in Target Hospitals in Sample Surplus…
  13. hcup-us.ahrq.gov/figures/8_03.jsp
    Figure 8 : Number of Hospitals in 2003 Universe, Frame, Sample, Target, and Surplus, by Region Figure 8 : Number of Hospitals in 2003 Universe, Frame, Sample, Target, and Surplus, by Region Hospital Region Hospitals in Universe Hospitals in Frame Hospitals in Target Hospitals in Sample Surplus…
  14. hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS61997Final.pdf
    August 09, 2000 - Statistical comparisons of in-hospital mortality estimates between the NIS and the NHDS samples were … RESULTS Comparisons Between the NIS and the NHDS Since the NIS and the NHDS represent different samples … ” race is higher than the NHDS estimate by 99 percent, primarily due to differences between the two samples
  15. hcup-us.ahrq.gov/db/nation/neds/nedschecklist.jsp
    November 01, 2024 - Checklist for Working with the NEDS An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email Updates …
  16. hcup-us.ahrq.gov/db/nation/nis/HCUPNISChecklist_081020.pdf
    August 10, 2020 - Microsoft Word - HCUP NIS Checklist_PDF Version.docx HCUP NIS (08/10/2020) 1 Checklist for Working With the NIS The National Inpatient Sample (NIS) is part of a family of databases and software tools developed for the Healthcare Cost and Utilization Project (HCUP). The number of studies using the NIS has i…
  17. hcup-us.ahrq.gov/db/nation/nis/HCUPNISChecklist_PDFVersion.pdf
    November 28, 2017 - Microsoft Word - HCUP NIS Checklist_PDF Version.docx HCUP (11/28/17) 1 Checklist for Working With the NIS The National (Nationwide) Inpatient Sample (NIS) is part of a family of databases and software tools developed for the Healthcare Cost and Utilization Project (HCUP). The number of studies using the…
  18. hcup-us.ahrq.gov/reports/methods/2017-03.pdf
    January 01, 2017 - DEPARTMENT RATES FOR SELECTED AHRQ QUALITY INDICATORS The HCUP Nationwide Emergency Department Samples … We consider the SID to be samples from a “super-population” for purposes of variance estimation.
  19. hcup-us.ahrq.gov/db/nation/nis/reports/NISVarianceReport_Notification.pdf
    July 01, 2004 - Microsoft Word - NISVarianceReport_Notification.doc DATE: July 1, 2004 TO: Users of the HCUP Nationwide Inpatient Sample (NIS) and Kids’ Inpatient Database (KID) SUBJECT: Corrections to instructions on how to calculate variances (standard errors) Page 1 of 2 Memorandum We have recently uncove…
  20. hcup-us.ahrq.gov/news/announcements_archives.jsp
    March 01, 2021 - HCUP Announcements - Archives An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email Updates …

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