-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1994_SummaryStats_N10Core1.PDF
January 01, 1994 - 276958 Pr >= |M| <.0001
Signed Rank S 7.671E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (I:Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … 312229 Pr >= |M| <.0001
Signed Rank S 9.749E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (I:Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … 311847 Pr >= |M| <.0001
Signed Rank S 9.725E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1993_SummaryStats_N10Core1.PDF
January 01, 1993 - 284044.5 Pr >= |M| <.0001
Signed Rank S 8.068E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (I:Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (I:Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … 317596 Pr >= |M| <.0001
Signed Rank S 1.009E11 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … 317919 Pr >= |M| <.0001
Signed Rank S 1.011E11 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1988_SummaryStats_N10Core2.PDF
July 07, 2005 - 229138 Pr >= |M| <.0001
Signed Rank S 5.25E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (I:Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … 255971.5 Pr >= |M| <.0001
Signed Rank S 6.552E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (I:Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … 249754 Pr >= |M| <.0001
Signed Rank S 6.238E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1988_SummaryStats_N10Core1.PDF
July 07, 2005 - 229259 Pr >= |M| <.0001
Signed Rank S 5.256E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (I:Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … 257046 Pr >= |M| <.0001
Signed Rank S 6.607E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … 249771 Pr >= |M| <.0001
Signed Rank S 6.239E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … 250861 Pr >= |M| <.0001
Signed Rank S 6.293E10 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/reports/methods/2019-02Appendix_v2.xlsx
January 01, 2019 - rely on a Note (cont'd 1): formula that redistributes the difference between the April 1 postcensal estimate … annually because they rely on a formula that redistributes the difference between the April 1 postcensal estimate … rely on a formula Note (cont'd): that redistributes the difference between the April 1 postcensal estimate
-
hcup-us.ahrq.gov/datainnovations/clinicaldata/OverviewAHRQSupportedAddingClinicalDataPilots09.jsp
November 01, 2010 - Suggested Next Steps for AHRQ
Develop materials on the business case for adding clinical data
Estimate
-
hcup-us.ahrq.gov/news/exhibit_booth/nrd_brochure.jsp
May 01, 2017 - Free tools and software are available to estimate hospital costs, assess quality of care, and identify
-
hcup-us.ahrq.gov/db/nation/nis/trendwghts.jsp
June 01, 2024 - The report Using the HCUP Nationwide Inpatient Sample to Estimate Trends (PDF file, 1.2 MB), available
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2003_SummaryStats_CORE.PDF
January 01, 2003 - 3488859 Pr >= |M| <.0001
Signed Rank S 1.217E13 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … 3907609 Pr >= |M| <.0001
Signed Rank S 1.527E13 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … Variable: TOTCHG_X (Total charges (as received from source))
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2005_SummaryStats_CORE.PDF
January 01, 2005 - 3483630 Pr >= |M| <.0001
Signed Rank S 1.214E13 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … 3921756 Pr >= |M| <.0001
Signed Rank S 1.538E13 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … Variable: TOTCHG_X (Total charges (as received from source))
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2000_SummaryStats_CORE.PDF
January 01, 2000 - 697107 Pr >= |M| <.0001
Signed Rank S 4.86E11 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … 1220331 Pr >= |M| <.0001
Signed Rank S 1.489E12 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … Variable: TOTCHG_X (Total charges (as received from source))
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2003_SummaryStats_CORE.PDF
January 01, 2003 - 836723 Pr >= |M| <.0001
Signed Rank S 7.001E11 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: AGE (Age in years at admission)
Quantiles (Definition 5)
Quantile Estimate … 1447439 Pr >= |M| <.0001
Signed Rank S 2.095E12 Pr >= |S| <.0001
Quantiles (Definition 5)
Quantile Estimate … UNIVARIATE Procedure
Variable: LOS (Length of stay (cleaned))
Quantiles (Definition 5)
Quantile Estimate … Variable: TOTCHG_X (Total charges (as received from source))
Quantiles (Definition 5)
Quantile Estimate
-
hcup-us.ahrq.gov/reports/methods/2004_6_appendix_D.pdf
January 01, 2004 - If the sample size was at least 60 records, then the estimate was reported only if
the relative standard … If the sample size was at least 60 records, then the estimate was reported only if the relative
standard … If the sample size was at least 60 records, then the estimate was reported only if the relative standard … If the sample size was at least 60 records, then the estimate was reported only if the relative standard … If the sample size was at least 60 records, then the estimate was reported only if the relative standard
-
hcup-us.ahrq.gov/db/nation/kid/reports/KID_design_rpt_2003.jsp
January 01, 2003 - It should be possible, for example, to estimate Diagnosis Related Group (DRG)-specific average lengths … It should be possible, for example, to estimate DRG-specific average lengths of stay across all U.S. … This is the case because the population is defined at that point in time, and because the estimate is … In each iteration, the outcome of interest is predicted for one-tenth of the observations by an estimate
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2015.jsp
January 01, 2015 - However, beginning with the 2012 NIS, it is no longer possible to estimate hospital volumes. … However, users could estimate percentages of discharges (e.g. percentage of Medicare discharges) for … The report Using the HCUP Nationwide Inpatient Sample to Estimate Trends , available on the HCUP-US … The discharge weights may be used to estimate national population statistics. … It should be possible, for example, to estimate DRG-specific average lengths of stay across all U.S.
-
hcup-us.ahrq.gov/figures/fig1crpt_02.jsp
Figure 2. Estimated Discharges from Public Hospitals, 2002
Figure 2. Estimated Discharges from Public Hospitals, 2002
Hospital Beds
Discharges (thousands)
AHA
NIS
NHDS
1-99
1,156
1,133
1,236
100-199
866
633
893
200-299
701
617
501
300-499
1,297…
-
hcup-us.ahrq.gov/figures/fig1crpt_01.jsp
Figure 2. Estimated Discharges from Public Hospitals, 2001
Figure 2. Estimated Discharges from Public Hospitals, 2001
Hospital Beds
Discharges (thousands)
AHA
NIS
NHDS
1-99
2,665
2,876
5,251
100-199
5,178
5,234
7,884
200-299
5,303
5,307
4,971
300…
-
hcup-us.ahrq.gov/figures/fig2_03.jsp
Figure 2. Estimated Discharges from Public Hospitals, 2003
Figure 2. Estimated Discharges from Public Hospitals, 2003
Hospital Beds
Discharges (thousands)
AHA
NIS
NHDS
1-99
1,156
1,133
1,236
100-199
866
633
893
200-299
701
617
501
300-499
1,297…
-
hcup-us.ahrq.gov/db/nation/kid/reports/KID_2000_Design_Report.pdf
January 01, 2000 - It should be possible, for example, to estimate DRG-specific average lengths of stay across all
U.S. … It should be possible, for example, to estimate DRG-specific average lengths of stay across all
U.S. … sampling
fraction approaches one, since the population is defined at that point in time, and because the
estimate … In each iteration, the
outcome of interest is predicted for one-tenth of the observations by an estimate
-
hcup-us.ahrq.gov/db/nation/nis/nisrelatedreports.jsp
February 01, 2025 - Errors) (PDF file, 76 KB)
NIS Trends Report
Using the HCUP Nationwide Inpatient Sample to Estimate