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Showing results for "sampling".

  1. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)

    hcup-us.ahrq.gov/reports/methods/2015-09.pdf
    January 01, 2015 - Prior to the 2012 NIS, the samples included all discharges from a sample of hospitals in the sampling … Users desiring a more comprehensive account should refer to the final report on the NIS sampling and … in the sampling frame. … Survey Sampling Principles. New York: Dekker; 1991, Chapter 10. … As the sampling fraction f approaches 1, the sampling variance approaches zero.

  2. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2006

    hcup-us.ahrq.gov/db/nation/kid/kid_2006_introduction.jsp
    January 01, 2006 - Return to Introduction SAMPLING OF DISCHARGES Sampling of Discharges Included in the KID … Sampling Procedure The KID includes a sample of pediatric discharges from all hospitals in the sampling … R k is the frame sampling rate for non-newborns from all non-newborn discharges in the sampling frame … Confidentiality of Hospitals - Limitation on Sampling Limitations on sampling were needed for … "KID Sampling-Frame Hospitals" lists hospitals with pediatric discharges in the sampling frame after

  3. Introducing the CAHPS Cancer Care Survey" Transcript (pdf file)

    www.ahrq.gov/sites/default/files/wysiwyg/cahps/news-and-events/events/webinars/cahps-cancer-care-transcript.pdf
    June 01, 2017 - And the CAHPS Consortium asked us to update the sampling algorithms from ICD-9 to -10. … Some cancer types do not have a surgery sampling algorithm. … So, we're going to suggest a minor change to the sampling algorithm logic. … It also lets you apply sampling where it's appropriate. … So, I think the approach to take would be to create separate sampling frames.

  4. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2018

    hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2018.jsp
    January 01, 2018 - Build the NASS hospital sampling frame. … Return to Introduction   3.4.2 NASS Sampling Strata Sampling strata were selected using results … This led to relaxing the number of sampling frame hospitals or sampling fraction criteria for some strata … Frame 2018 Population States Not in NASS Sampling Frame Total 2018 Population States in NASS Sampling … The overall sampling fraction for the 2018 universe of hospitals and sampling frame is (2,699/4,357)

  5. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/nass/2018_NASS_Introduction.pdf
    January 01, 2018 - • Build the NASS hospital sampling frame. … Hospitals are sampled from the NASS sampling frame. … frame hospitals small sampling fractions. … The overall sampling fraction for the 2018 universe of hospitals and sampling frame is (2,699/4,357) … This led to relaxing the number of sampling frame hospitals or sampling fraction criteria for some strata

  6. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)

    hcup-us.ahrq.gov/reports/methods/2003_02.pdf
    January 01, 2003 - The user desiring a more comprehensive account should refer to the final report on the NIS sampling … As the sampling fraction f approaches 1, the sampling variance approaches zero. … It can accommodate very large sampling frames. It can draw a replicated sampling, i.e. … PROC SURVEYSELECT accepts the sampling frame as a SAS data set. … without replacement of sampling units within strata.

  7. HCUP Methods Series Calculating Nationwide Inpatient Sample (NIS) Variances for Data Years 2011 and Earlier

    hcup-us.ahrq.gov/reports/methods/2003_02.jsp
    January 01, 2003 - One objective, already achieved, was a redesign of the Nationwide Inpatient Sample (NIS) sampling and … As the sampling fraction f approaches 1, the sampling variance approaches zero. … It can accommodate very large sampling frames. … PROC SURVEYSELECT accepts the sampling frame as a SAS data set. … without replacement of sampling units within strata.

  8. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2006

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2006.jsp
    January 01, 2006 - SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … for hospital-level sampling weights. … Confidentiality of Hospitals - Limitation on Sampling Limitations on sampling were needed for … were fewer than two hospitals in a sampling stratum.

  9. Preparing a Questionnaire Using the CAHPS Clinician & Group Survey (pdf file)

    www.ahrq.gov/sites/default/files/wysiwyg/cahps/surveys-guidance/mhs/cahps-outpatient-mental-health-guidance.pdf
    December 01, 2024 - Exhibit 2.1 provides an overview of the sampling recommendations. Exhibit 2.1. … • The sampling frame is a person-level list rather than a service- or visit-level list. … Use their most recent visit for inclusion in the sampling frame. … Therefore, a patient who has disenrolled from a health plan can be included in the sampling frame as … long as the patient meets the other sampling criteria

  10. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2009

    hcup-us.ahrq.gov/db/nation/kid/kid_2009_introduction.jsp
    January 01, 2009 - Return to Introduction SAMPLING OF DISCHARGES Sampling of Discharges Included in the KID Unlike … Sampling Procedure The KID includes a sample of pediatric discharges from all hospitals in the sampling … R k is the frame sampling rate for non-newborns from all non-newborn discharges in the sampling frame … Confidentiality of Hospitals - Limitation on Sampling Limitations on sampling were needed for … "KID Sampling-Frame Hospitals" lists hospitals with pediatric discharges in the sampling frame after

  11. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2019.pdf
    September 01, 2021 - The new sampling strategy produces more precise estimates than the previous NIS design by reducing sampling … sampling error. … The NIS sampling and weighting strategy was also revised in 1998. … Overview of the Sampling Procedure The strata for the 2012 and later NIS systematic sampling design … Thus, the sampling rate would not always be 20 percent for each stratum.

  12. http://172.16.18.243/db/nation/nis/nishospnotes.jsp (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/NIS_1999_HOSPITAL.pdf
    January 01, 1999 - 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 … For detailed information about the NIS sampling design, see the year-specific report on the Design of … Some strata were combined for sampling and weight calculations.

  13. Nis 1998 Hospital (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/NIS_1998_Hospital.pdf
    January 01, 1998 - 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 … For detailed information about the NIS sampling design, see the year-specific report on the Design of … Some strata were combined for sampling and weight calculations.

  14. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/kid/KID_2009_Introduction.pdf
    January 01, 2009 -  Rk is the frame sampling rate for non-newborns from all non-newborn discharges in the sampling … o One stand-alone children’s hospital was excluded from the sampling frame. … No hospitals were dropped from the sampling frame. … were fewer than two hospitals in a sampling stratum. …  “KID Sampling-Frame Hospitals” lists hospitals with pediatric discharges in the sampling frame

  15. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2008

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2008.jsp
    January 01, 2008 - SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … for hospital-level sampling weights. … Confidentiality of Hospitals - Limitation on Sampling Limitations on sampling were required … were fewer than two hospitals in a sampling stratum.

  16. 2017-01 (pdf file)

    hcup-us.ahrq.gov/reports/methods/2017-01.pdf
    January 01, 2017 - https://www.ahadataviewer.com/glossary/ HCUP (01/24/2017) 2 NRD Variance Report The sampling … Survey Sampling Principles. New York: Dekker; 1991, Chapter 10. … Under the finite population model, the variances of estimates approach zero as the sampling fraction … Sampling: Design and Analysis. Pacific Grove, CA: Brooks/Cole Publishing Company; 1999. … SAS /* Specify the sampling design with sampling weights DISCWT, */ /* hospital clusters HOSP_NRD

  17. Table 2: NIS and NHDS Comparisons by Region, 1999 (pdf file)

    hcup-us.ahrq.gov/reports/methods/1999NISComparisonReportFinal.pdf
    March 08, 2002 - specifications of the new NIS sampling strategy. … NIS Sampling The overall sampling objective was to select a sample of hospitals that could be generalized … Sampling error can be expected in both the NHDS and the NIS. … Because the sampling error in a stratified sample is the sum of the stratum- level sampling errors (Lehtonen … First, some differences exist in the sampling strategies used.

  18. 2006 05 Nistrendsreport 1988-2004A (pdf file)

    hcup-us.ahrq.gov/reports/methods/2006_05_NISTrendsReport_1988-2004A.pdf
    January 01, 2006 - o Redefined the hospital stratification variables for sampling. … States Added to or Subtracted From the Sampling Frame. … the NIS increased as new States were added to the sampling frame. … This decrease is associated with the expanding sampling frame. … In particular, as the sampling frame increased over time, we were more successful at sampling 20 percent

  19. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2007

    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2007.jsp
    January 01, 2007 - SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … for hospital-level sampling weights. … Confidentiality of Hospitals - Limitation on Sampling Limitations on sampling were needed for … were fewer than two hospitals in a sampling stratum.

  20. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)

    hcup-us.ahrq.gov/db/nation/nis/2006NIS_INTRODUCTION.pdf
    November 01, 2015 - The NIS-Trends weights account for this change in NIS sampling. … SAMPLING OF HOSPITALS Sampling of Hospitals Included in the NIS The NIS Hospital Universe The … Change to Hospital Sampling Procedure Beginning with the 1998 NIS Beginning with the 1998 NIS sampling … No hospitals were dropped from the sampling frame. … were fewer than two hospitals in a sampling stratum.
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