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Showing results for "design sample size".

  1. hcup-us.ahrq.gov/reports/statbriefs/sb182-Medicaid-Uninsured-Hospitalizations-2012.jsp
    October 01, 2014 - The redesign incorporates two critical changes: Revisions to the sample design—the NIS … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analysis … Hospitals, 2011 For a detailed description of HCUP and more information on the design of the National
  2. hcup-us.ahrq.gov/reports/methods/2018-01.pdf
    January 01, 2018 - Revision, Clinical Modification/Procedure Coding System. 5 In data year 2012, the HCUP NIS changed its design … Because of the differences in design, the trend analyses for the QDR did not use the 2012– 2015 NIS. … size: 7.5 million records Nationally weighted analysis file with a 20 percent sample of hospitals … size: 7.9 million records Nationally weighted analysis file with a 20 percent sample of hospitals … This method takes into account the cluster and stratification aspects of the sample design when calculating
  3. hcup-us.ahrq.gov/news/exhibit_booth/HCUPOverviewDeck_121422.pdf
    February 09, 2022 - Sampling Strata NIS Sample Design • Ownership/control • Bed size • Teaching status • Urban/rural … KID Sample Design The KID is a systematic random sample design, 10 percent uncomplicated … Sampling StrataStarting HCUP Database Sample Design NEDS Sample Design The NEDS is drawn from SEDD … NEDS Sample Design Sampling StrataStarting HCUP Database Sample Design The NRD is a 100 percent … • Patient age and sex *State not included Sampling StrataStarting HCUP Database Sample Design
  4. hcup-us.ahrq.gov/reports/methods/2017-03.pdf
    January 01, 2017 - 3 In data year 2012, the HCUP NIS changed its design … Because of the differences in design, the trend analyses for the QDR did not use the 2012– 2014 NIS. … size: 7.5 million records Nationally weighted analysis file with a 20 percent sample of hospitals … size: 7.9 million records Nationally weighted analysis file with a 20 percent sample of hospitals … This method takes into account the cluster and stratification aspects of the sample design when calculating
  5. hcup-us.ahrq.gov/reports/methods/2016-01.pdf
    January 01, 2016 - 3 In data year 2012, the HCUP NIS changed its design … Because of the differences in design, the trend analyses for the QDR did not use the 2012– 2013 NIS. … size: 7.5 million records Nationally weighted analysis file with a 20 percent sample of hospitals … size: 7.9 million records Nationally weighted analysis file with a 20 percent sample of hospitals … This method takes into account the cluster and stratification aspects of the sample design when calculating
  6. hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2001_HOSPITAL.pdf
    January 01, 2001 - For detailed information about the NIS sampling design, see the year-specific report on the Design of … When the sample size was sufficiently large, hospitals were stratified as public (HOSP_CONTROL=1), voluntary … For detailed information about the NIS sampling design, see the year-specific report on the Design of … For detailed information about the NIS sampling design, see the year-specific report on the Design of … For detailed information about the NIS sampling design, see the year-specific report on the Design of
  7. hcup-us.ahrq.gov/db/nation/kid/kid_2009_introduction.jsp
    January 01, 2009 - The KID's large sample size enables analyses of rare conditions, such as congenital anomalies and uncommon … The HCUP Sampling Design tutorial is designed to help users learn how to account for sample design … reports on Design of the Kids’ Inpatient Database found on the HCUP-US Website . … Starting with the 2006 KID, the design information was incorporated into this report. … Hospital Sample Design Design Considerations The overall design objective was to select a sample
  8. hcup-us.ahrq.gov/news/exhibit_booth/nass_brochure.jsp
    March 01, 2020 - Nationwide Ambulatory Surgery Sample (NASS) An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email U…
  9. hcup-us.ahrq.gov/db/nation/kid/DataElements_KID_Hospital_2000.pdf
    January 01, 2000 - When sample size was sufficiently large, hospitals were stratified as public, voluntary, and proprietary … For detailed information about the KID sampling design, see the year-specific report on the Design of … For detailed information about the KID sampling design, see the year-specific report on the Design of … For detailed information about the KID sampling design, see the year-specific report on the Design of … For detailed information about the KID sampling design, see the year-specific report on the Design of
  10. hcup-us.ahrq.gov/reports/statbriefs/sb246-Geographic-Variation-Hospital-Stays.pdf
    February 01, 2018 - Because of the large sample sizes, we focus on the size of differences between estimates rather than … The redesign incorporates two critical changes: • Revisions to the sample design—starting with 2012 … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … The unweighted sample size for the 2016 NIS is 7,135,090 (weighted, this represents 35,675,421 inpatient
  11. hcup-us.ahrq.gov/db/nation/nis/reports/2004niscomparisonrpt.jsp
    May 01, 2016 - One of the most distinctive features of the NIS is that its large sample size allows for the study of … We must emphasize that the NIS provides a large sample size that tends to yield estimates with much smaller … Because NIS estimates have greater precision — the result of the large sample size — it may be preferred … Where a comprehensive geographic representation is more important than a large sample size, and the question … (a) Because of very small sample size, the NHDS estimate and standard error were unreliable and not reported
  12. hcup-us.ahrq.gov/reports/statbriefs/sb235-Inpatient-Stays-Age-Payer-Trends.pdf
    December 01, 2016 - The redesign incorporates two critical changes: • Revisions to the sample design—starting with 2012 … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analyses … For a detailed description of HCUP and more information on the design of the National (Nationwide) Inpatient
  13. hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS41995Final.pdf
    December 21, 1998 - See Design of the HCUP Nationwide Inpatient Sample, Release 4, for more details on the design of the … A significance test was not performed because a valid standard error was not available. b The NHDS samplesize was too small to calculate a valid estimate of standard error … size was too small to calculate a valid estimate of standard error … size was too small to calculate a valid estimate of standard error
  14. hcup-us.ahrq.gov/db/nation/nis/reports/2005niscomparisonrpt.jsp
    November 01, 2015 - Where a comprehensive geographic representation is more important than a large sample size, and the question … The NIS provides a large sample size that tends to yield estimates with much smaller standard errors … Because NIS estimates have greater precision – the result of the large sample size – it may be preferred … (a) Because of very small sample size, the NHDS estimate and standard error were unreliable and not reported … (a) Because of very small sample size, the NHDS estimate and standard error were unreliable and not reported
  15. hcup-us.ahrq.gov/reports/statbriefs/sb205-Hospital-Discharge-Postacute-Care.pdf
    November 01, 2015 - The redesign incorporates two critical changes:  Revisions to the sample design—starting with … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analysis … Hospitals, 2011 For a detailed description of HCUP and more information on the design of the National
  16. hcup-us.ahrq.gov/reports/statbriefs/sb226-Patient-Residence-Opioid-Hospital-Stays-ED-Visits-by-State.pdf
    December 01, 2016 - size was too small to calculate the rate) a The number of States represented in the top and bottom … size was too small to calculate the rate) a The number of States represented in the top and bottom … size was too small to calculate the rate) a Opioid-related inpatient rates are per 100,000 population … size was too small to calculate the rate) a Opioid-related ED visit rates are per 100,000 population … half the length of confidence intervals under the previous design.
  17. Nedsbrochure 050218 (pdf file)

    hcup-us.ahrq.gov/news/exhibit_booth/NEDSBrochure_050218.pdf
    May 16, 2018 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis
  18. hcup-us.ahrq.gov/db/nation/kid/KID_2009_Introduction.pdf
    January 01, 2009 - The KID's large sample size enables analyses of rare conditions, such as congenital anomalies and uncommon … Detailed information on the design of the KID prior to 2006 is available in the year-specific special … The HHCUP Sampling DesignH tutorial is designed to help users learn how to account for sample design … Variance estimates must take into account both the sampling design and the form of the statistic. … reports on Design of the Kids’ Inpatient Database found on the HHCUP-US WebsiteH.
  19. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2022_Hospital.TXT
    January 01, 2022 - Data Set Name: NRD_2022_HOSPITAL Created on 11/06/2024 Number of Observations: 2505 Total Number of Data Elements: 12 Columns Description ======== =========== 1 - 3 Database name 5 - 8 Discharge year of data 10 - 35 File name 37 - 40 Data element number 42 - 70 Data eleme…
  20. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2021_Hospital.TXT
    January 01, 2021 - Data Set Name: NRD_2021_HOSPITAL Created on 12/29/2023 Number of Observations: 2505 Total Number of Data Elements: 12 Columns Description ======== =========== 1 - 3 Database name 5 - 8 Discharge year of data 10 - 35 File name 37 - 40 Data element number 42 - 70 Data eleme…

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