-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_1998.jsp
January 01, 1998 - Overview to the HCUP Nationwide Inpatient Sample (NIS), 1998
An official website of the Department of Health & Human Services
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…
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hcup-us.ahrq.gov/figures/nis_figure3_2008.jsp
January 01, 2008 - Figure 3: NIS Hospital Sampling Frame, by Year
Figure 3: NIS Hospital Sampling Frame, by Year
Year
Number of Hospitals
1988
1,247
1989
1,658
1990
6,620
1991
1,604
1992
1,591
1993
2,168
1994
2,135
1995
2,284
1996
2,268
19…
-
hcup-us.ahrq.gov/figures/3_05.jsp
Figure 3 : NIS Hospital Sampling Frame, by Year
Figure 3 : NIS Hospital Sampling Frame, by Year
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
Number of Hospitals
1,247
1,658
1,620
1,604
1,591
2,168
2…
-
hcup-us.ahrq.gov/figures/3_04.jsp
Figure 3 : NIS Hospital Sampling Frame, by Year
Figure 3 : NIS Hospital Sampling Frame, by Year
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
Number of Hospitals
1,247
1,658
1,620
1,604
1,591
2,168
2,135
…
-
hcup-us.ahrq.gov/figures/3_03.jsp
Figure 3 : NIS Hospital Sampling Frame, by Year
Figure 3 : NIS Hospital Sampling Frame, by Year
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
Number of Hospitals
1,247
1,658
1,620
1,604
1,591
2,168
2,135
2,284
…
-
hcup-us.ahrq.gov/figures/3_01.jsp
Figure 3 : NIS Hospital Sampling Frame, by Year
Figure 3 : NIS Hospital Sampling Frame, by Year
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
Number of Hospitals
1,247
1,658
1,620
1,604
1,591
2,168
2,135
2,284
2,268
2,452…
-
hcup-us.ahrq.gov/figures/3_02.jsp
Figure 3 : NIS Hospital Sampling Frame, by Year
Figure 3 : NIS Hospital Sampling Frame, by Year
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
Number of Hospitals
1,247
1,658
1,620
1,604
1,591
2,168
2,135
2,284
2,268 …
-
hcup-us.ahrq.gov/db/nation/nass/2019_NASS_Introduction.pdf
January 01, 2019 - INTRODUCTION TO THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2019
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 AMBULATORY SURGERY SAMPLE (NASS)
20…
-
hcup-us.ahrq.gov/db/nation/kid/KIDIntroduction2022.pdf
December 01, 2024 - Standard formulas for stratified, two-stage cluster samples without replacement may
be used to calculate
-
hcup-us.ahrq.gov/db/nation/kid/reports/KID_design_rpt_2003.jsp
January 01, 2003 - Standard formulas for stratified, two-stage cluster samples without replacement may be used to calculate
-
hcup-us.ahrq.gov/reports/methods/2003_04.pdf
January 01, 2003 - the SID databases contain nearly all discharges from nearly all
hospitals in the state, we treat the samples … We consider
the SID to be samples from a “super-population” for purposes of variance estimation. … SID databases contain nearly all discharges from nearly all hospitals in the state, we treat
the samples … We consider the NIS and SID to be samples from a “super-
population” for purposes of variance estimation
-
hcup-us.ahrq.gov/db/nation/kid/reports/KID_2003_Design_Edited_013006.pdf
January 01, 2003 - Standard formulas for stratified, two-stage cluster samples without replacement may
be used to calculate
-
hcup-us.ahrq.gov/db/nation/nis/nisfilespecs.jsp
November 01, 2024 - NIS File Specifications
An official website of the Department of Health & Human Services
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hcup-us.ahrq.gov/db/nation/nis/nissummstats.jsp
November 01, 2024 - The following links provide summary statistics for the National (Nationwide) Inpatient Sample (NIS). Summary Statistics include means on all numeric variables, frequency distributions, and univariates on continuous variables. Summary statistics are provided by year.
Contents:
2022 NIS
2021 NIS
2020…
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hcup-us.ahrq.gov/reports/methods/2017-01.pdf
January 01, 2017 - superpopulation model, procedures have been developed to draw inferences using
weights from complex samples
-
hcup-us.ahrq.gov/db/nation/nass/NASSIntroduction2022.pdf
December 01, 2024 - Introduction to the NASS, 2022
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 AMBULATORY SURGERY SAMPLE (NASS)
2022
These pages pr…
-
hcup-us.ahrq.gov/tech_assist/index_mno.jsp
August 01, 2020 - HCUP-US Index Page
An official website of the Department of Health & Human Services
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hcup-us.ahrq.gov/db/nation/neds/NEDSIntroduction2022.pdf
November 01, 2024 - Introduction to the NEDS
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)
2022
Please read all documen…
-
hcup-us.ahrq.gov/reports/infographics.jsp
October 01, 2022 - HCUP Infographics
An official website of the Department of Health & Human Services
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hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2007.jsp
January 01, 2007 - THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2007 (Version 1)
An official website of the Department of Health & Human Services
Search All AHRQ Websites
Careers
Contact Us
Es…