-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1993_SummaryStats_Nis93wt.PDF
January 01, 1993 - Kurtosis 20.5275258
Uncorrected SS 40600.2858 Corrected SS 8264.82741
Coeff Variation 50.5842544 Std Error … Kurtosis 11.7634796
Uncorrected SS 37556.1578 Corrected SS 6638.28147
Coeff Variation 46.361873 Std Error … Kurtosis 2.07359552
Uncorrected SS 1.03382E15 Corrected SS 5.80454E14
Coeff Variation 113.213405 Std Error … Kurtosis -0.5324583
Uncorrected SS 17237595 Corrected SS 4488376.69
Coeff Variation 59.3664172 Std Error … Kurtosis -0.5837276
Uncorrected SS 629437 Corrected SS 183797.087
Coeff Variation 64.2562299 Std Error
-
hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2009_MaskedStats_Hospital.PDF
January 01, 2009 - Kurtosis 106.315791
Uncorrected SS 30241.4338 Corrected SS 1633.71024
Coeff Variation 23.9085243 Std Error … Kurtosis 3.278046
Uncorrected SS 1.29789E15 Corrected SS 7.50256E14
Coeff Variation 117.102867 Std Error … Kurtosis -0.2520279
Uncorrected SS 23336348 Corrected SS 6698788.4
Coeff Variation 63.4834065 Std Error … Kurtosis 4.74374069
Uncorrected SS 5.28186E13 Corrected SS 3.13343E13
Coeff Variation 120.82466 Std Error … Kurtosis -0.2745516
Uncorrected SS 961338 Corrected SS 271160.476
Coeff Variation 62.7104177 Std Error
-
hcup-us.ahrq.gov/reports/methods/2008_02.pdf
January 01, 2008 - in the external
environment and factors inside hospitals that were conceptually related to medical error … health care providers,
policymakers, the media, and the general public to the real risk of medical error … protocols for hand hygiene to rapid response teams—are being promoted to
reduce hospital-based medical error … in the external
environment and factors inside hospitals that were conceptually related to medical error … reported at level of Census subdivision)
• Percent of responses regarding nonpunitive reaction to error
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2012.jsp
January 01, 2012 - The self–weighting design of the new NIS reduces the margin of error for estimates and delivers more … For national–level estimates, the 2012 NIS systematic design reduces the margin of error by 42 to 48 … The systematic design also consistently reduced the margin of error for estimates at the DRG level. … : "Compressed (Zipped) Folders Error. … of error for the present NIS design.
-
hcup-us.ahrq.gov/reports/statbriefs/sb245-Substance-Inpatient-Stays-Across-US-Counties.pdf
February 01, 2018 - (standard error / weighted estimate) greater than 0.30
or equal to 0, or because the county is missing … (standard error / weighted estimate) greater than 0.30
or equal to 0, or because the county is missing … (standard error/weighted estimate) greater than 0.30 or equal to 0, or because the
county is missing … (standard error/weighted estimate) greater than 0.30 or equal to 0, or because the
county is missing … (standard error divided by weighted estimate) greater than 0.30
or equal to 0, or because the county
-
hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2013.jsp
January 01, 2013 - The self–weighting design of the new NIS reduces the margin of error for estimates and delivers more … For national–level estimates, the 2012 NIS systematic design reduces the margin of error by 42 to 48 … The systematic design also consistently reduced the margin of error for estimates at the DRG level. … : "Compressed (Zipped) Folders Error. … of error for the present NIS design.
-
hcup-us.ahrq.gov/db/nation/nass/stats/NASS_Summary_Stats_Encounter_Weighted_2022.pdf
January 01, 2022 - of Mean Sum
Std Error
of Sum
AGE Age in years at admission 9096010 1078 0 90.000000 53.164622 0.270497 … Encounter File
The SURVEYMEANS Procedure
Statistics
Variable Label N N Miss Minimum Maximum Mean
Std Error … of Mean Sum
Std Error
of Sum
CPTCCS15 CPT 15 Procedure CCS 1062 9096026 3.000000 175.000000 92.795957 … Encounter File
The SURVEYMEANS Procedure
Statistics
Variable Label N N Miss Minimum Maximum Mean
Std Error … of Mean Sum
Std Error
of Sum
NCPT_INSCOPE Number of In-Scope CPTs for this encounter 9097088 0 1.000000
-
hcup-us.ahrq.gov/nisoverview.jsp
September 01, 2025 - sampling strategy produces more precise estimates than the previous NIS design by reducing sampling error … The self-weighting design of the new NIS reduces the margin of error for estimates and delivers more … utilities in Windows® and Macintosh® cannot decompress or decrypt these zip files and will produce an error
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2020_Core_MaskedStats_Weighted.PDF
January 01, 2020 - Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error … Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error … Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error
-
hcup-us.ahrq.gov/db/vars/totchg_x/nisnote.jsp
September 01, 2008 - Due to an error in HCUP processing in 1996, some types of professional fees were not subtracted from … Illinois
Due to an error in HCUP processing, a few zero charges occur in the Illinois 1990-1991 HCUP … Due to an error in processing the inpatient data in 2003-2004, professional fees were NOT subtracted … Wisconsin
An error during HCUP processing of 1993 discharges caused negative values of total charges
-
hcup-us.ahrq.gov/reports/natstats/his95/clinclas.htm
January 01, 1999 - summarized the literature on coding errors for hospital
administrative data and described a decline in error … Information on age and sex was most reliable (error rates less than 1 percent),
and principal diagnosis … Minor differences can be
attributed to rounding error (because the numbers of discharges are weighted … discharges is required to assure, with 95-percent confidence, that the
reported proportions had a relative error … of less than 30 percent (i.e., if the
reported value is p , the error is <.3 p ).
-
hcup-us.ahrq.gov/reports/methods/2012-02.pdf
January 01, 2012 - There is no sampling error associated with Claritas
census population counts; therefore, appropriate … For population counts based on Claritas data, there is no sampling error. … Standard error estimates for age/sex adjusted inpatient rates per 100,000 population
using the 2009 … We multiplied this standard error by
1,000.
b. … Standard error estimates for age/sex adjusted inpatient rates per 1,000 discharges
using inpatient
-
hcup-us.ahrq.gov/reports/methods/2012_03.pdf
January 01, 2012 - There is no sampling error associated with Nielsen
census population counts; therefore, appropriate … For population counts based on Nielsen data, there is no
sampling error. … Standard error estimates for age/sex adjusted inpatient rates per 100,000 population
using the 2010 … We multiplied this standard error by
1,000.
b. … Standard error estimates for age/sex adjusted inpatient rates per 1,000 discharges
using inpatient
-
hcup-us.ahrq.gov/reports/methods/2011_06.pdf
January 01, 2011 - There is no sampling error associated with Claritas
census population counts; therefore, appropriate … For population counts based on Claritas data, there is no sampling error. … Standard error estimates for age/sex adjusted inpatient rates per 100,000 population
using the 2008 … We multiplied this standard error by
1,000.
b. … Standard error estimates for age/sex adjusted inpatient rates per 1,000 discharges
using inpatient
-
hcup-us.ahrq.gov/reports/methods/2010_06.pdf
January 01, 2010 - There is no sampling error associated with Claritas
census population counts; therefore, appropriate … For population counts based on Claritas data, there is no sampling error. … Standard error estimates for age/sex adjusted inpatient rates per 100,000 population
using the 2007 … We multiplied this standard error by
1,000.
b. … Standard error estimates for age/sex adjusted inpatient rates per 1,000 discharges
using inpatient
-
hcup-us.ahrq.gov/db/vars/drg/kidnote.jsp
September 01, 2008 - non-missing secondary diagnosis code (DX2, etc.) have the incorrect DRG and MDC assigned because of an error … non-missing secondary diagnosis code (DX2, etc.) have the incorrect DRG and MDC assigned because of an error
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2018_Core_MaskedStats_Weighted.PDF
January 01, 2018 - Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error … Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error … Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2019_Core_MaskedStats_Weighted.PDF
January 01, 2019 - Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error … Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error … Core File
Means of Continuous Data Elements
Statistics
Variable Label N N Miss Min Max Mean
Std
Error
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2021_Core_MaskedStats.PDF
January 01, 2021 - Kurtosis 2.50382651
Uncorrected SS 578777293 Corrected SS 43186162.1
Coeff Variation 28.3958991 Std Error … Kurtosis -0.9449544
Uncorrected SS 7.24702E10 Corrected SS 1.76328E10
Coeff Variation 56.7050946 Std Error … Kurtosis 444.172104
Uncorrected SS 3.19353E15 Corrected SS 2.27887E15
Coeff Variation 157.844335 Std Error
-
hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2020_Core_MaskedStats.PDF
January 01, 2020 - Kurtosis 1.70195629
Uncorrected SS 587933063 Corrected SS 45881932.4
Coeff Variation 29.0938189 Std Error … Kurtosis -0.9049012
Uncorrected SS 6.85707E10 Corrected SS 1.58609E10
Coeff Variation 54.8551471 Std Error … Kurtosis 486.584188
Uncorrected SS 2.67292E15 Corrected SS 1.88437E15
Coeff Variation 154.585435 Std Error