-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/1997RECLWT.txt
November 12, 1999 - 28 STRAT_ST 219 223 Num H:Stratum for state-specific weights
29 S_DISC_S 224 230 Num H:Num. sample … discharges in STRAT_ST
30 S_DISC_U 231 237 Num H:Num. sample discharges in STRATUM
31 S_HOSP_S … 238 240 Num H:Num. sample hospitals in STRAT_ST
32 S_HOSP_U 241 243 Num H:Num. sample hospitals
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/1995RECLWT.txt
February 12, 1998 - 28 STRAT_ST 219 223 Num H:Stratum for state-specific weights
29 S_DISC_S 224 230 Num H:Num. sample … discharges in STRAT_ST
30 S_DISC_U 231 237 Num H:Num. sample discharges in STRATUM
31 S_HOSP_S … 238 240 Num H:Num. sample hospitals in STRAT_ST
32 S_HOSP_U 241 243 Num H:Num. sample hospitals
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/1994RECLWT.txt
December 06, 1996 - 219 223 Num H:Stratum for state-specific weights
29 S_DISC_S 224 230 Num H:Num. sample … discharges in STRAT_ST
30 S_DISC_U 231 237 Num H:Num. sample discharges in STRATUM
31 S_HOSP_S … 238 240 Num H:Num. sample hospitals in STRAT_ST
32 S_HOSP_U 241 243 Num H:Num. sample hospitals
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/1996RECLWT.txt
February 12, 1998 - 28 STRAT_ST 219 223 Num H:Stratum for state-specific weights
29 S_DISC_S 224 230 Num H:Num. sample … discharges in STRAT_ST
30 S_DISC_U 231 237 Num H:Num. sample discharges in STRATUM
31 S_HOSP_S … 238 240 Num H:Num. sample hospitals in STRAT_ST
32 S_HOSP_U 241 243 Num H:Num. sample hospitals
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_1998.pdf
January 01, 1998 - GA GHA: An Association of Hospitals & Health Systems
Confidentiality of Hospitals
The sample … 1998
3
HI Hawaii Health Information Corporation
Confidentiality of Hospitals
The sample … Confidentiality of Hospitals
Sources of NIS Data and
State-Specific Restrictions
1998
4
The sample … SC South Carolina State Budget & Control Board
Confidentiality of Hospitals
The sample … TN Tennessee Hospital Association
Confidentiality of Hospitals
The sample of Tennessee hospitals
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_1999.pdf
January 01, 1999 - GA GHA: An Association of Hospitals & Health Systems
Confidentiality of Hospitals
The sample … 1999
3
HI Hawaii Health Information Corporation
Confidentiality of Hospitals
The sample … restrictions
MO Hospital Industry Data Institute
Confidentiality of Hospitals
The sample … SC South Carolina State Budget & Control Board
Confidentiality of Hospitals
The sample … TN Tennessee Hospital Association
Confidentiality of Hospitals
The sample of Tennessee hospitals
-
hcup-us.ahrq.gov/HCUP_Overview/HCUP_Overview/index508.jsp
October 01, 2022 - Sample Size
The NIS contains a sample of over 7 million hospital discharge records taken from more … the Nationwide Inpatient Sample. … " Inpatient Sample (NIS). … Sample
The NIS is a sample of discharges while the SID includes all discharges from all or nearly all … Sample vs.
-
hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2009_MaskedStats_Hospital.PDF
January 01, 2009 - hospital discharges,
20 years old or younger 4,024 97 0.04 100.00 15.38 13.89
S_BRTH_U : Number of sample … births in
KID_STRATUM 4,121 0 178.00 108,374.00 21,633.54 26,777.95
S_CHLD_U : Number of sample pediatric … non-births in KID_STRATUM 4,121 0 878.00 353,233.00 42,376.31 65,089.32
S_CMPB_U : Number of sample … complicated
births in KID_STRATUM 4,121 0 140.00 87,817.00 16,643.25 21,244.10
S_DISC_U : Number of sample … hospitals in
KID_STRATUM 4,121 0 12.00 229.00 95.83 55.14
S_UNCB_U : Number of sample uncomplicated
-
hcup-us.ahrq.gov/news/exhibit_booth/hcup_90_min_pres.jsp
December 01, 2022 - Nationwide Ambulatory Surgery Sample (NASS)
Generate national and regional estimates of major … Design
The NIS approximates a 20 percent stratified sample of discharges from all hospitals … Slide 29
KID Sample Design
Starting HCUP Database
The KID is drawn from … Design
The KID is a systematic random sample design, 10 percent uncomplicated births and 80 … Design
The NRD is a 100 percent sample of discharges from the SID, after certain discharge
-
hcup-us.ahrq.gov/figures/5_01.jsp
Figure 5: Number of Hospitals Sampled, by Year
Figure 5: Number of Hospitals Sampled, by Year
Year
Number of Hospitals
Total Number of Hospitals
1988
758
759
1989
875
882
1990
861
871
1991
847
859
1992
838
856
1993
913
(no value)
1994…
-
hcup-us.ahrq.gov/figures/5_02.jsp
Figure 5: Number of Hospitals Sampled, by Year
Figure 5: Number of Hospitals Sampled, by Year
Year
Number of Hospitals
Total Number of Hospitals
1988
758
759
1989
875
882
1990
861
871
1991
847
859
1992
838
856
1993
913
(no value)
1994…
-
hcup-us.ahrq.gov/figures/5_04.jsp
January 01, 2004 - Figure 5: Number of Hospitals Sampled, by Year
Figure 5: Number of Hospitals Sampled, by Year
Year
Number of Regular Hospitals
Total Number of Hospitals
2004
1,004
(no value)
2003
994
(no value)
2002
995
(no value)
2001
986
(no value)
2000
994
(no va…
-
hcup-us.ahrq.gov/figures/5_03.jsp
Figure 5: Number of Hospitals Sampled, by Year
Figure 5: Number of Hospitals Sampled, by Year
Year
Number of Regular Hospitals
Total Number of Hospitals
1988
758
759
1989
875
882
1990
861
871
1991
847
859
1992
838
856
1993
913
(no value)
…
-
hcup-us.ahrq.gov/reports/infographics/SAMSHA_opioids.pdf
January 18, 2022 - Infographic - More Opioid-Related Emergency Visits, No Change in Illicit Drug Use Treatment
This Is a Sample … for Healthcare Research and Quality, Healthcare Cost and Utilization Project, Nationwide Inpatient
Sample … and Nationwide Emergency Department Sample, 2017.
2014
177.7
18.3%
2015
*Change not
statistically
-
hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2020_Hospital.PDF
January 01, 2020 - Number of universe hospitals in NRD_STRATUM 2,539 0 3.00 352.00 84.65 56 214,930
S_DISC_U : Number of sample … discharges in NRD_STRATUM 2,539 0 3,750.00 1,259,548.00 233,111.50 101,616 591,870,098
S_HOSP_U : Number of sample … November 23, 2022 8
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … November 23, 2022 9
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … November 23, 2022 10
Univariates of Selected Continuous Data Elements
Variable: S_HOSP_U (Number of sample
-
hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2019_Hospital_V2.PDF
January 01, 2019 - Number of universe hospitals in
NRD_STRATUM 2,507 0 5.00 351.00 87.66 65 219,773
S_DISC_U : Number of sample … discharges in
NRD_STRATUM 2,507 0 3,168.00 1,425,462.00 260,649.49 132,395 653,448,281
S_HOSP_U : Number of sample … November 30, 2022 8
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … November 30, 2022 9
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … November 30, 2022 10
Univariates of Selected Continuous Data Elements
Variable: S_HOSP_U (Number of sample
-
hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2021_Hospital.PDF
January 01, 2021 - Number of universe hospitals in NRD_STRATUM 2,505 0 4.00 359.00 86.64 61 217,028
S_DISC_U : Number of sample … discharges in NRD_STRATUM 2,505 0 3,020.00 1,403,374.00 236,463.82 110,789 592,341,861
S_HOSP_U : Number of sample … December 29, 2023 8
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … December 29, 2023 9
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … December 29, 2023 10
Univariates of Selected Continuous Data Elements
Variable: S_HOSP_U (Number of sample
-
hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2022_Hospital.PDF
January 01, 2022 - Number of universe hospitals in NRD_STRATUM 2,505 0 4.00 367.00 88.10 62 220,690
S_DISC_U : Number of sample … discharges in NRD_STRATUM 2,505 0 2,670.00 1,383,293.00 237,058.74 115,261 593,832,135
S_HOSP_U : Number of sample … November 4, 2024 8
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … November 4, 2024 9
Univariates of Selected Continuous Data Elements
Variable: S_DISC_U (Number of sample … November 4, 2024 10
Univariates of Selected Continuous Data Elements
Variable: S_HOSP_U (Number of sample
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Sources_and_Restrictions_2000.pdf
January 01, 2000 - GA GHA: An Association of Hospitals & Health Systems
Confidentiality of Hospitals
The sample … ethnicity
HI Hawaii Health Information Corporation
Confidentiality of Hospitals
The sample … IL Illinois Health Care Cost Containment Council
Confidentiality of Hospitals
The sample … restrictions
MO Hospital Industry Data Institute
Confidentiality of Hospitals
The sample … VA Virginia Health Information
Confidentiality of Hospitals
The Nationwide Inpatient Sample
-
hcup-us.ahrq.gov/db/nation/kid/kid_2006_introduction.jsp
January 01, 2006 - Hospital Sample Design
Design Considerations
The overall design objective was to select a sample … In some instances, strata were collapsed for sample weight calculations. … summarize the final KID sample. … hospitals, and sample discharges. … "KID Sample Hospitals" lists the hospitals selected for the KID.