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hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompco.jsp
June 01, 2024 - SEDD File Composition - Colorado
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompmo.jsp
June 01, 2024 - SID File Composition - Missouri
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hcup-us.ahrq.gov/news/exhibit_booth/NASSBrochure_031220.pdf
March 18, 2020 - PowerPoint Presentation
What is the NASS?
The Nationwide Ambulatory Surgery Sample
(NASS) is part of the family of databases and
software tools developed for the Healthcare Cost
and Utilization Project (HCUP). The NASS
produces national estimates of major ambulatory
surgery encounters performed in hospital-owned
faci…
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hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2016.jsp
January 01, 2016 - Admissions (NRD_DaysToEvent and LOS)
NRD_DaysToEvent is the number of days from a randomly chosen "start … Each verified patient linkage number (NRD_VisitLink) was assigned a unique start date that was used to … The data element NRD_DaysToEvent was the difference between the visit's admission date and the start … For readmission analyses, determining the number of days between the end of one admission and the start … The number of days between the admissions (from discharge date of the first admission to the start
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hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2014.pdf
January 01, 2014 - Admissions (NRD_DaysToEvent and LOS)
NRD_DaysToEvent is the number of days from a randomly chosen "start … Each verified patient linkage number (NRD_VisitLink) was assigned a unique start date that was
used … The data element NRD_DaysToEvent was the difference between the visit’s admission date
and the start … For readmission analyses, determining the number of days between the end of one admission
and the start … The number of days between the admissions (from discharge date of the first admission
to the start
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hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompak.jsp
June 01, 2024 - SEDD File Composition - Alaska
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hcup-us.ahrq.gov/db/state/sedddist/sedddist_filecompmi.jsp
April 01, 2025 - SEDD File Composition - Michigan
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hcup-us.ahrq.gov/ahalinkage/ahalinkage_search.jsp
August 01, 2025 - American Hospital Association Linkage Files
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hcup-us.ahrq.gov/stataload/stataload_search.jsp
August 01, 2025 - HCUP-US Central Distributor Stata Load Programs
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompmi.jsp
April 01, 2025 - SID File Composition - Michigan
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hcup-us.ahrq.gov/db/state/siddist/siddist_filecompak.jsp
June 01, 2024 - SID File Composition - Alaska
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hcup-us.ahrq.gov/db/nation/nrd/NRD_Introduction_2013.jsp
January 01, 2013 - Admissions (NRD_DaysToEvent and LOS)
NRD_DaysToEvent is the number of days from a randomly chosen "start … Each verified patient linkage number (NRD_VisitLink) was assigned a unique start date that was used to … The variable NRD_DaysToEvent was the difference between the visit's admission date and the start date … For readmission analyses, determining the number of days between the end of one admission and the start … The number of days between the admissions (from discharge date of the first admission to the start
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hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2016.jsp
January 01, 2016 - discharge would be selected from the sorted list of discharges, beginning with a randomly selected start
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_1997_HOSPITAL.txt
January 01, 1997 - Columns Description:
======= ============
1- 3 Database name
5- 8 Discharge year of data
10-14 File name
19-21 Variable number
23-30 Variable name
32-34 Starting column of variable in ASCII file
36-38 Ending column of variable in ASCII file
40 Non-zero number of digits …
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hcup-us.ahrq.gov/db/nation/kid/tools/stats/FileSpecifications_KID_2003_HOSPITAL.TXT
January 01, 2003 - Data Set Name: KID_2003_HOSPITAL
Number of Observations: 3438
Total Record Length: 204
Total Number of Variables: 30
Columns Description:
======= ============
1- 3 Database name
5- 8 Discharge year of data
10- 25 File name
27- 29 Variable number
31- 59 Variable name
61- 63 Sta…
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hcup-us.ahrq.gov/reports/statbriefs/sb235-Inpatient-Stays-Age-Payer-Trends.pdf
December 01, 2016 - Trends in Hospital Inpatient Stays by Age and Payer, 2000-2015
1
January 2018
Trends in Hospital Inpatient Stays by Age
and Payer, 2000–2015
Ruirui Sun, Ph.D., Zeynal Karaca, Ph.D., and
Herbert S. Wong, Ph.D.
Introduction
The utilization of hospital care is related to and affected by changes …
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hcup-us.ahrq.gov/reports/methods/2007_05.pdf
January 01, 2007 - Microsoft Word - CaseforPOAIndicator_final_060806 _2_.doc
HCUP Methods Series
kbr33831
Contact Information:
Healthcare Cost and Utilization Project (HCUP)
Agency for Healthcare Research and Quality
540 Gaither Road
Rockville, MD 20850
http://www.hcup-us.ahrq.gov
For Technical Assistance with HCUP P…
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hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2015.jsp
January 01, 2015 - Admissions (NRD_DaysToEvent and LOS)
NRD_DaysToEvent is the number of days from a randomly chosen "start … Each verified patient linkage number (NRD_VisitLink) was assigned a unique start date that was used to … The data element NRD_DaysToEvent was the difference between the visit's admission date and the start … For readmission analyses, determining the number of days between the end of one admission and the start … The number of days between the admissions (from discharge date of the first admission to the start
-
hcup-us.ahrq.gov/db/vars/supcptn/nassnote.jsp
August 01, 2019 - Healthcare Cost and Utilization Project (HCUP) NASS Notes
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hcup-us.ahrq.gov/db/vars/cptn/nassnote.jsp
August 01, 2019 - Healthcare Cost and Utilization Project (HCUP) NASS Notes
An official website of the Department of Health & Human Services
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FAQ…