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hcup-us.ahrq.gov/db/nation/neds/NEDS2020Introduction.pdf
September 01, 2022 - The HCUP Sample Design tutorial is designed to help users learn how to account
for sample design in … ) ÷ Ns(sample)
where Ws(universe) was the ED universe weight, and Ns(universe) and Ns(sample) were … A larger sample would be cumbersome for data users, given
that a 20-percent sample contains about 30 … The sampling design consisted of a stratified, single-stage
cluster sample. … ED visit
information from a
sample of EDs
HCUP Nationwide Emergency
Department Sample
Nationwide
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hcup-us.ahrq.gov/db/nation/neds/nedsdbdocumentation.jsp
March 01, 2025 - Nationwide Emergency Department Sample (NEDS) Database Documentation
The Nationwide Emergency Department … Sample (NEDS) produces national estimates about emergency department (ED) visits across the country. … One of the most distinctive features of the NEDS is its large sample size, which allows for analysis
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hcup-us.ahrq.gov/db/nation/neds/NEDS2018Introduction.pdf
November 01, 2020 - • The HCUP Sample Design tutorial is designed to help users learn how to account for
sample design … ) ÷ Ns(sample)
where Ws(universe) was the ED universe weight, and Ns(universe) and Ns(sample) were … A larger sample would be cumbersome for data users, given
that a 20-percent sample contains about 30 … ED visit
information from a
sample of EDs
HCUP Nationwide Emergency
Department Sample
Nationwide … WHAT’S NEW IN THE 2018 NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)?
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hcup-us.ahrq.gov/db/nation/neds/NEDS2019Introduction.pdf
September 01, 2021 - The HCUP Sample Design tutorial is designed to help users learn how to account
for sample design in … ) ÷ Ns(sample)
where Ws(universe) was the ED universe weight, and Ns(universe) and Ns(sample) were … A larger sample would be cumbersome for data users, given
that a 20-percent sample contains about 30 … ED visit
information from a
sample of EDs
HCUP Nationwide Emergency
Department Sample
Nationwide … WHAT’S NEW IN THE 2019 NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)?
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hcup-us.ahrq.gov/databases.jsp
January 01, 2025 - National (Nationwide) Inpatient Sample (NIS)
NIS Database Documentation
Kids’ Inpatient Database … (KID)
KID Database Documentation
Nationwide Ambulatory Surgery Sample (NASS)
NASS Database … Documentation
Nationwide Emergency Department Sample (NEDS)
NEDS Database Documentation
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hcup-us.ahrq.gov/news/announcements_archives.jsp
March 01, 2021 - Readmissions Database (NRD) (October 2021)
Release of the 2019 Nationwide Emergency Department Sample … (NEDS) (October 2021)
Release of the 2019 Nationwide Ambulatory Surgery Sample (NASS) (October … the 2019 Kids' Inpatient Database (KID) (October 2021)
Release of the 2019 National Inpatient Sample … Refined (CCSR) for ICD-10-PCS procedures (December 2020)
Release of the 2018 National Inpatient Sample … (NIS) (November 2020)
Release of the 2018 Nationwide Emegency Department Sample (NEDS) (November
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hcup-us.ahrq.gov/db/nation/kid/reports/KID_2003_Design_Edited_013006.pdf
January 01, 2003 - Sample Design
Design Considerations
The overall design objective was to select a sample of pediatric … Another strategy is to use sample weight
adjustments to compensate for missing values. … • “KID Sample Hospitals@ lists the hospitals selected for the KID. … In some instances, strata were collapsed for sample weight calculations. … Different methods are used for calculating
variances under the two sample theories.
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hcup-us.ahrq.gov/db/nation/kid/reports/KID_design_rpt_2003.jsp
January 01, 2003 - Sample Design
Design Considerations
The overall design objective was to select a sample of pediatric … Another strategy is to use sample weight adjustments to compensate for missing values. … "KID Sample Hospitals@ lists the hospitals selected for the KID. … In some instances, strata were collapsed for sample weight calculations. … Different methods are used for calculating variances under the two sample theories.
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hcup-us.ahrq.gov/db/nation/neds/NEDS2017Introduction.pdf
December 01, 2019 - universe) ÷ Ns(sample)
where Ws(universe) was the ED universe weight, and Ns(universe) and Ns(sample … A larger sample would be cumbersome for data users, given
that a 20 percent sample contains about 30 … The HCUP Nationwide Inpatient Sample (NIS)
prior to 2012 used stratified sample design similar to the … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design
similar to the … ED visit
information
from a
sample of
EDs
HCUP Nationwide Emergency
Department Sample (NEDS)
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hcup-us.ahrq.gov/figures/nis_figure4_2009.jsp
January 01, 2009 - Figure 4: Number of Hospitals in the 2007 Universe, Frame, and Sample for Frame States … Figure 4: Number of Hospitals in the 2007 Universe, Frame, and Sample for Frame States
States
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hcup-us.ahrq.gov/nisoverview.jsp
February 01, 2025 - (NIS)
The National (Nationwide) Inpatient Sample (NIS) is part of a family of databases and software … For prior years, the NIS was a sample of hospitals . … " to the " National Inpatient Sample." … The redesign incorporates three major types of changes:
Revisions to the sample design - the NIS … is now a sample of discharge records from all HCUP-participating hospitals, rather than a sample of hospitals
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hcup-us.ahrq.gov/db/nation/kid/KID_2019_Introduction.pdf
January 01, 2019 - KID Sample Design
Design Considerations
The overall design objective was to select a sample of pediatric … THE FINAL KID SAMPLE
In Appendix I, we present tables and figures that summarize the final KID sample … hospitals, and sample discharges. … • “KID Sample Hospitals” lists the hospitals selected for the KID. … of sample other newborns in KID_STRATUM
S_UNCB_U Number of sample normal newborns in KID_STRATUM
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hcup-us.ahrq.gov/db/nation/nis/NIS_1998_Hospital.pdf
January 01, 1998 - and hospital weights, see the year-specific report on
the Design of the HCUP Nationwide Inpatient Sample … and hospital weights, see the year-specific report on the Design of the HCUP Nationwide
Inpatient Sample … the NIS sampling design, see the year-specific report on the Design of the
HCUP Nationwide Inpatient Sample … When sample size was sufficiently large, hospitals were stratified as public,
voluntary, and proprietary … General Notes
Uniform Values
Variable Description Value Value Description
S_DISC_U Number of sample
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hcup-us.ahrq.gov/db/nation/nass/nasschecklist.jsp
November 01, 2024 -
⬜
Types of records included in the sample may change over time. … Prior to data year 2019, the NASS sample was limited to SASD encounters that involved surgeries defined … To learn more about how to account for sample design when working with the HCUP nationwide databases, … view the HCUP Sample Design tutorial on the HCUP Online Tutorial Series page on HCUP-US. … Review the HCUP Methods Series Report # 2003-02, Calculating Nationwide Inpatient Sample Variances .
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hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_1998.pdf
January 01, 1998 - GA GHA: An Association of Hospitals & Health Systems
Confidentiality of Hospitals
The sample … 1998
3
HI Hawaii Health Information Corporation
Confidentiality of Hospitals
The sample … Confidentiality of Hospitals
Sources of NIS Data and
State-Specific Restrictions
1998
4
The sample … SC South Carolina State Budget & Control Board
Confidentiality of Hospitals
The sample … TN Tennessee Hospital Association
Confidentiality of Hospitals
The sample of Tennessee hospitals
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hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_1999.pdf
January 01, 1999 - GA GHA: An Association of Hospitals & Health Systems
Confidentiality of Hospitals
The sample … 1999
3
HI Hawaii Health Information Corporation
Confidentiality of Hospitals
The sample … restrictions
MO Hospital Industry Data Institute
Confidentiality of Hospitals
The sample … SC South Carolina State Budget & Control Board
Confidentiality of Hospitals
The sample … TN Tennessee Hospital Association
Confidentiality of Hospitals
The sample of Tennessee hospitals
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hcup-us.ahrq.gov/db/nation/nis/nistrends_filespecs.jsp
May 01, 2015 - 1993-2002 Nationwide Inpatient Sample (NIS) Supplemental Discharge-Level Files - File Specifications … DATA VISUALIZATIONS
DATA QUERY TOOLS
1993-2002 Nationwide Inpatient Sample … 1999
2000
2001
2002
Internet Citation: 1993-2002 Nationwide Inpatient Sample
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hcup-us.ahrq.gov/db/nation/nis/nistrends_loadprgms.jsp
May 01, 2015 - 1993-2002 Nationwide Inpatient Sample (NIS) Supplemental Discharge-Level Files - Load Programs … DATA VISUALIZATIONS
DATA QUERY TOOLS
1993-2002 Nationwide Inpatient Sample … 2000
2001
2002
Internet Citation: 1993-2002 Nationwide Inpatient Sample
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hcup-us.ahrq.gov/db/nation/nass/2018_NASS_Introduction.pdf
January 01, 2018 - • The HCUP Sample Design tutorial is designed to help users learn how to account for
sample design … On the basis of the set of
NASS sample hospitals and universe totals, sample weights are computed that … Computation of sample weights is straightforward. … universe to sample encounter
volumes so that the sample volume is inflated to agree with the universe … NASS Target Universe, Sampling Frame, and Final Sample
Characteristics, 2018
Sample Description
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2019_MaskedStats_Hospital.PDF
January 01, 2019 - births in the stratum 3,998 222 138,129 22,814.8 7,096 91,213,556
S_CHLD_U : Number of sample pediatric … non-births in the stratum 3,998 26 440,930 28,798.2 5,398 115,135,107
S_CMPB_U : Number of sample sick … newborns in the stratum 3,998 31 121,033 19,427.5 5,621 77,671,132
S_DISC_U : Number of sample births … and children in the stratum 3,998 438 456,297 51,641.4 11,791 206,462,206
S_HOSP_U : Number of sample … hospitals in the stratum 3,998 2 195 75.2 64 300,537
S_UNCB_U : Number of sample normal newborns in