-
hcup-us.ahrq.gov/db/nation/nis/Introduction_to_NIS_2002.pdf
January 01, 2002 - However, these NIS samples were not
designed to yield a representative sample of hospitals at the State
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hcup-us.ahrq.gov/db/nation/nis/nisdbdocumentation.jsp
March 01, 2025 - National (Nationwide) Inpatient Sample (NIS) Database Documentation
The National (Nationwide) Inpatient Sample (NIS) is the largest publicly available all-payer inpatient care database in the United States, containing data on more than seven million hospital stays. Its large sample size is ideal for developing nati…
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hcup-us.ahrq.gov/reports/spotlights_archive.jsp
December 01, 2019 - Research Spotlights - Archives
An official website of the Department of Health & Human Services
Search All AHRQ Websites
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hcup-us.ahrq.gov/db/nation/neds/IntroductionNEDS2012_updatedJan2019.pdf
February 01, 2012 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)
2012
…
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hcup-us.ahrq.gov/db/nation/neds/NEDS2010Introductionv3.pdf
November 01, 2015 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)
2010
…
-
hcup-us.ahrq.gov/db/nation/neds/NEDS2011Introduction01142014.pdf
November 01, 2015 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)
2011
…
-
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. The NEDS describes ED visits, regardless of whether they result in admission. One of the most distinctive fea…
-
hcup-us.ahrq.gov/db/nation/nis/DataElements_NIS_2001_HOSPITAL.pdf
January 01, 2001 - Description of Data Elements
Description of Data Elements
Nationwide Inpatient Sample (NIS)
Hospital Weights File
This document contains cumulative descriptions of data elements across all
states and years of HCUP data from 1988 to the current data year. Please
refer to the Overview of the Nationwi…
-
hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2009.pdf
January 01, 2009 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)
2009
…
-
hcup-us.ahrq.gov/db/nation/neds/NEDS2013Introduction.pdf
December 04, 2015 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)
2013
…
-
hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS21993Final.pdf
April 03, 1997 - RESULTS
Comparisons Between the NIS and the NHDS
Since the NIS and the NHDS represent different samples
-
hcup-us.ahrq.gov/nassoverview.jsp
February 01, 2025 - NASS Overview
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
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Espanol
FAQs
Email Updates
…
-
hcup-us.ahrq.gov/news/announcements/neds2019_Oct21.jsp
October 20, 2021 - AHRQ releases 2019 Nationwide Emergency Department Sample (NEDS)(October 2021)
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
Contact…
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2005.pdf
January 01, 2005 - However, these NIS samples were not
designed to yield a representative sample of hospitals at the State
-
hcup-us.ahrq.gov/db/nation/neds/NEDS2016Introduction.pdf
September 01, 2018 - HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
HEALTHCARE COST AND UTILIZATION PROJECT — HCUP
A FEDERAL-STATE-INDUSTRY PARTNERSHIP IN HEALTH DATA
Sponsored by the Agency for Healthcare Research and Quality
INTRODUCTION TO
THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)
2016
These pa…
-
hcup-us.ahrq.gov/databases.jsp
January 01, 2025 - Nationwide HCUP Databases
HCUP's Nationwide databases can be used to identify, track, and analyze national trends in healthcare utilization, access, charges, quality, and outcomes.
National (Nationwide) Inpatient Sample (NIS)
NIS Database Documentation
Kids’ Inpatient Database (KID)
KID Data…
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2004.pdf
January 01, 2004 - However, these NIS samples were not
designed to yield a representative sample of hospitals at the State
-
hcup-us.ahrq.gov/figures/8_05.jsp
Figure 8 : Number of Hospitals in 2005 Universe, Frame, Sample, Target, and Surplus, by Region
Figure 8 : Number of Hospitals in 2005 Universe, Frame, Sample, Target, and Surplus, by Region
Hospital Region
Hospitals in Universe
Hospitals in Frame
Hospitals in Target
Hospitals in Sample
Surplus…
-
hcup-us.ahrq.gov/figures/8_02.jsp
Figure 8 : Number of Hospitals in 2003 Universe, Frame, Sample, Target, and Surplus, by Region
Figure 8 : Number of Hospitals in 2002 Universe, Frame, Target, Sample, and Surplus, by Region
Hospital Region
Hospitals in Universe
Hospitals in Frame
Hospitals in Target
Hospitals in Sample
Surplus…
-
hcup-us.ahrq.gov/figures/8_01.jsp
Figure 8 : Number of Hospitals in 2003 Universe, Frame, Sample, Target, and Surplus, by Region
Figure 8 : Number of Hospitals in 2001 Universe, Frame, Target, Sample, and Surplus, by Region
Hospital Region
Hospitals in Universe
Hospitals in Frame
Hospitals in Target
Hospitals in Sample
Surplus…