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hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2012_Redesign_report.jsp
January 01, 2012 - As a result of the 2012 evaluation study, a new NIS sample design was recommended. … Recommended a design that optimized the use of all available data to produce the most precise and stable … AHRQ has elected to deploy the systematic sampling design that was recommended, effective with the 2012 … The team recommended the systematic design because:
It is self-weighting, making the sample easy … As a result of this evaluation, a new NIS sample design was recommended.
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hcup-us.ahrq.gov/db/nation/nis/reports/NISRedesignFinalReport040914.pdf
June 11, 2014 - Recommended Citation: Houchens RL, Ross DN, Elixhauser A, and Jiang J. … As a result of the 2012 evaluation study, a new NIS sample design was
recommended. … Recommended a design that optimized the use of all available data to produce the most
precise … The team recommended the systematic design because:
It is self-weighting, making the sample easy … As a result of this evaluation, a new NIS sample design was recommended.
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hcup-us.ahrq.gov/reports/methods/2014-04.pdf
January 01, 2014 - hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended … As a result of the 2012 evaluation study, a new NIS sample design was
recommended. … Recommended a design that optimized the use of all available data to produce the most
precise … The team recommended the systematic design because:
It is self-weighting, making the sample easy … As a result of this evaluation, a new NIS sample design was recommended.
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hcup-us.ahrq.gov/db/nation/neds/2015HCUP_NEDS_121417.pdf
December 14, 2017 - Recommended Citation: Barrett ML. 2015 Healthcare Cost and Utilization Project
(HCUP) Nationwide Emergency
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hcup-us.ahrq.gov/reports/projections/2015-02.pdf
January 01, 2015 - hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
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hcup-us.ahrq.gov/reports/race/GeographicInfoIB.jsp
June 01, 2016 - Researchers in Virginia have recommended additional analyses with more social, economic and medical variables
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hcup-us.ahrq.gov/reports/projections/CDI_Regional_projections_Final.pdf
July 10, 2012 - Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/2015-08.pdf
January 01, 2015 - hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/2014-03UserGuide.pdf
January 01, 2014 - Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/2016-09UG.pdf
January 01, 2016 - Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/2017-05.pdf
January 01, 2017 - Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/MS2021-01-Expected-Payer-Coding.pdf
November 30, 2021 - For Technical Assistance with HCUP Products:
Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/2020-01.pdf
January 01, 2020 - For Technical Assistance with HCUP Products:
Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/reports/methods/MS2022-02-Expected-Payer-Coding.pdf
December 14, 2022 - For Technical Assistance with HCUP Products:
Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended
-
hcup-us.ahrq.gov/tech_assist/dua.jsp
March 01, 2023 - All purchasers and users of HCUP data must complete the HCUP Data Use Agreement (DUA) Training Course and sign an HCUP DUA before receipt of the data.
This Web-based training course outlines important terms of the DUA. The course will take approximately 15 minutes to complete. The purpose of the course is to:
…
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hcup-us.ahrq.gov/reports/methods/2019-04.pdf
January 01, 2019 - For Technical Assistance With HCUP Products:
Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended … Citation: Recommended Citation: McDermott KW, Barrett ML, Owens. … State at the time of the code change).14 If a
code change occurred during the study period, it is recommended
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hcup-us.ahrq.gov/reports/methods/2017-01.pdf
January 01, 2017 - Email: hcup@ahrq.gov
or
Phone: 1-866-290-HCUP
Recommended … Sampling discharges or hospitals was not recommended because the sample needed to
balance the database … This approach generally is recommended for calculating standard errors
because it will yield correct
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hcup-us.ahrq.gov/db/nation/nis/nis_statelevelestimates.jsp
January 01, 2016 - "Can I use older years of the NIS that include State identifiers to do State-level estimates?"
AHRQ strongly advises researchers against using the NIS to estimate State-specific statistics. Prior to 2012, State is available as a NIS data element. However, these NIS samples were not designed to yield a representat…
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hcup-us.ahrq.gov/nisoverview.jsp
July 01, 2025 - HCUP-US NIS Overview
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
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FAQs
Email Updates
…
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hcup-us.ahrq.gov/db/nation/nrd/NRD2010-2012.pdf
January 01, 2012 - In September 2017, AHRQ identified an error in the assignment of the data element for
discharge month (DMONTH) in the HCUP Central Distributor 2010–2012 Nationwide
Readmissions Database (NRD). This error led to incorrect values for some but not all records.
DMONTH is mainly used for identifying index events (rathe…