-
hcup-us.ahrq.gov/reports/methods/2007_07.pdf
January 01, 2007 - The sampling strata were defined
based on five hospital characteristics: geographic region, hospital … Hospitals
were excluded from the sampling frame if the coding of patient race was suspect (i.e., more … The sampling
and weighting strategy used for the disparities analysis file is similar to the method … There is no sampling error associated with Claritas
census population counts. … For Claritas population counts, there is no sampling
error.
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hcup-us.ahrq.gov/db/nation/nis/nisrelatedreports.jsp
February 01, 2025 - 1993 ( PDF file, 940 KB; HTML )
1988-1992 ( PDF file, 1,173 KB; HTML )
Changes in the NIS Sampling
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hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2019.pdf
January 01, 2019 - Sampling Frame
The sampling frame for the NRD was limited to discharges for patients treated at community … All of the discharges
in the sampling frame were included, making the NRD a sample of convenience. … Discharge Weights
This section explains the need for post-stratification for weighting the sampling … These analyses demonstrated that there were differences between
8 Changes in the NIS Sampling and … Variance estimates must take into account both the sampling design and
the form of the statistic.
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2017.pdf
January 01, 2017 - ICD-9-CM and ICD-10-CM/PCS Diagnosis and Procedure Codes ---------------------------------- 17
SAMPLING … Sampling Frame
The sampling frame for the NRD was limited to discharges for patients treated at community … All of the discharges
in the sampling frame were included, making the NRD a sample of convenience. … Discharge Weights
This section explains the need for post-stratification for weighting the sampling … Variance estimates must take into account both the sampling design and
the form of the statistic.
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2015.jsp
January 01, 2015 - DESIGN OF THE NRD
Target Universe
Sampling Frame
Discharge Weights
Post-Stratification for … Sampling Frame
The sampling frame for the NRD was limited to discharges for patients treated at community … All of the discharges in the sampling frame were included, making the NRD a sample of convenience. … Discharge Weights
This section explains the need for post-stratification for weighting the sampling … Variance estimates must take into account both the sampling design and the form of the statistic.
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2018.pdf
January 01, 2018 - ICD-9-CM and ICD-10-CM/PCS Diagnosis and Procedure Codes ---------------------------------- 15
SAMPLING … Sampling Frame
The sampling frame for the NRD was limited to discharges for patients treated at community … All of the discharges
in the sampling frame were included, making the NRD a sample of convenience. … Discharge Weights
This section explains the need for post-stratification for weighting the sampling … Variance estimates must take into account both the sampling design and
the form of the statistic.
-
hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2010-2018.jsp
January 01, 2018 - DESIGN OF THE NRD
Target Universe
Sampling Frame
Discharge Weights
Post-Stratification for … Sampling Frame
The sampling frame for the NRD was limited to discharges for patients treated at community … All of the discharges in the sampling frame were included, making the NRD a sample of convenience. … Discharge Weights
This section explains the need for post-stratification for weighting the sampling … Variance estimates must take into account both the sampling design and the form of the statistic.
-
hcup-us.ahrq.gov/datainnovations/raceethnicitytoolkit/nm1.jsp
July 01, 2014 - Sample Hospital Report Card
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
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Email Updates
…
-
hcup-us.ahrq.gov/datainnovations/raceethnicitytoolkit/nm1.pdf
March 31, 2011 - Sample Hospital Report Card
SAMPLE HOSPITAL
Quarter 1 - Report Card
(January 1, 2011 - March 31, 2011)
Table of Contents
Quarter One Quality and Completeness of Race/Ethnicity Date ……………………………………… Page 3
Comparison of Hospital and County Level…
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hcup-us.ahrq.gov/reports/statbriefs/sb195-Potentially-Preventable-Hospitalizations.pdf
December 01, 2014 - We did not use the 2012 National Inpatient Sample (NIS) because the sampling
design and universe definition … Over time, the sampling
18
frame for the NIS has changed; thus, the number of States contributing … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under … Over time, the
sampling frame for the NEDS has changed; thus, the number of States contributing to the
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2001_10PCT_SAMPLE_A.TXT
January 01, 2001 - Data Set Name: NIS_2001_10PCT_SAMPLE_A
Number of Observations: 745273
Total Record Length: 483
Total Number of Variables: 115
Columns Description:
======= ============
1- 3 Database name
5- 8 Discharge year of data
10- 25 File name
27- 29 Variable number
31- 49 Variable nam…
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hcup-us.ahrq.gov/db/nation/nis/reports/2007niscomparisonrpt.jsp
May 01, 2016 - As shown in Figure 1 and Table 1, the 2007 NIS is selected from a sampling frame comprising 40 HCUP Partner … Comparison of States in the NIS with National Demographics, 2007
NIS Sampling Frame
United … This is not surprising because NIS sampling strata and NIS discharge weights were based on AHA Annual … The AHA-derived sampling weights in the NIS yield discharge counts consistent with the AHA universe by … Because of the design of the sampling frame, the NIS may over-represent urban areas.
-
hcup-us.ahrq.gov/reports/methods/2010_03.pdf
January 01, 2010 - As shown in Figure 1 and Table 1, the 2007 NIS is selected from a sampling frame comprising
40 HCUP … Comparison of States in the NIS with National Demographics, 2007
NIS Sampling Frame United States … This is not surprising because NIS sampling strata and NIS discharge weights
were based on AHA Annual … The AHA-derived sampling weights in the NIS yield discharge counts consistent with the
AHA universe … Because of the design of the sampling frame, the NIS may over-represent urban areas.
-
hcup-us.ahrq.gov/reports/statbriefs/sb204-Most-Expensive-Hospital-Conditions.pdf
November 01, 2015 - It is drawn from a sampling frame that contains hospitals
comprising more than 95 percent of all discharges … Over time, the sampling frame for the NIS
has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under
-
hcup-us.ahrq.gov/db/vars/hosp_bedsize/nisnote.jsp
September 01, 2008 - For detailed information about the NIS sampling design, see the year-specific report on the Design of
-
hcup-us.ahrq.gov/db/vars/hosp_bedsize/nrdnote.jsp
August 01, 2015 - For detailed information about the NIS sampling design, see the year-specific report on the Design of
-
hcup-us.ahrq.gov/reports/statbriefs/sb195-Potentially-Preventable-Hospitalizations.jsp
November 01, 2015 - We did not use the 2012 National Inpatient Sample (NIS) because the sampling design and universe definition … Over time, the sampling frame for the NIS has changed; thus, the number of States contributing to the … The new sampling strategy is expected to result in more precise estimates than those that resulted from … the previous NIS design by reducing sampling error: for many estimates, confidence intervals under the … Over time, the sampling frame for the NEDS has changed; thus, the number of States contributing to the
-
hcup-us.ahrq.gov/reports/statbriefs/sb129.jsp
April 01, 2012 - The sampling frame for the 2009 NIS is a sample of hospitals that comprises approximately 95 percent … Sampling stratifiers include hospital region, bed size, ownership, teaching status, and urban/rural location … It is drawn from a sampling frame that contains hospitals comprising about 95 percent of all discharges
-
hcup-us.ahrq.gov/news/exhibit_booth/nass_brochure.jsp
March 01, 2020 - Nationwide Ambulatory Surgery Sample (NASS)
An official website of the Department of Health & Human Services
Search All AHRQ Websites
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FAQs
Email U…
-
hcup-us.ahrq.gov/news/exhibit_booth/hcup_90_min_pres.jsp
December 01, 2022 - Sampling Strata
Ownership/control
Bed side
Teaching status
Urban/rural location
U.S. … Sampling Strata
Uncomplicated births
Complicated births
Pediatric nonbirths
*State not … Sampling Strata
U.S. region
Urban/rural location
Teaching status
Ownership/control
Trauma … Sampling Strata
U.S. region
Urban/rural location
Teaching status
Size
Ownership/control … Sampling Strata
U.S. region
Bed size
Urban/rural location
Teaching status
Ownership/