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  1. hcup-us.ahrq.gov/db/nation/nrd/Introduction_NRD_2013.pdf
    January 01, 2013 - Series reports that provide additional information readmissions:  Overview of Key Readmission Measures … This report describes12 key measures of hospital readmissions from different agencies or companies. … The 12 measures were selected for inclusion because they are: (1) endorsed by the National Quality Forum … Although we calculated discharge-level weights for the NRD, we did not calculate hospital-level weights … Moderate loss of function, (3) Major loss of function, (4) Extreme loss of function AHRQ Comorbidity Measures
  2. hcup-us.ahrq.gov/tech_assist/index_stu.jsp
    February 01, 2022 - Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files NIS-Trend Weights … Sampling design - NIS SASD SEDD Serving the Uninsured: Safety-Net Hospitals, 2003 Severity Measures … Hospital Market Structure (HMS) Files Software Tools - KID-Trend File Software Tools - NIS-Trend Weights … - HCUP Tools Loading Tutorial Trends for National Estimates (PDF report) Trend Tables Trends Weights
  3. hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS21993Final.pdf
    April 03, 1997 - Sample weights were developed for the NIS to obtain national estimates of hospital and inpatient parameters … For example, with these weights it should be possible to estimate DRG-specific average lengths of stay … All NIS statistics used sample weights and accounted for the sample design using the SUDAAN microcomputer … in Table 3, between the two sources because the discharge counts are essentially sums of discharge weights … Comparison with AHA Data Table 11 demonstrates that hospital weights associated with the NIS yield
  4. hcup-us.ahrq.gov/reports/statbriefs/sb259-Potentially-Preventable-Hospitalizations-2017.pdf
    January 01, 2017 - For these measures, an inpatient stay that meets the criteria for multiple components of the composite … Although these measures rely on hospital discharge data, they are intended to reflect issues of access … Version 2019.01 of the PQI software also includes three composite measures assessing hospitalizations … About the QDR The National Healthcare Quality and Disparities Report (QDR) measures and tracks trends … Information on individual measures will be available through chartbooks, which will be posted monthly
  5. hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2012_Redesign_report.jsp
    January 01, 2012 - Data Elements in the NIS Disease Severity Measures Files Table B-4. … derived from ICD-9-CM codes see also: Table B-3, Data Elements in the NIS Disease Severity Measures … (to calculate national estimates) Discharge weights (weights for 1988-1993 are on Hospital Weights … Data Elements in the NIS Disease Severity Measures Files Data elements that are italicized are not … All other data elements listed below are available for all States in the 2011 NIS Disease Severity Measures
  6. hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2018.jsp
    January 01, 2018 - Disease Severity Measures File: This discharge-level file contains information from two different sets … of disease severity measures. … Linkage between the Inpatient Core file and the Disease Severity Measures file Prior to the … Return to Introduction Variance Calculations It may be important for researchers to calculate a measure … of an appropriate method for calculating variances for nationwide estimates depends on the type of measure
  7. hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2017.jsp
    January 01, 2017 - Disease Severity Measures File: This discharge-level file contains information from two different sets … of disease severity measures. … Linkage between the Inpatient Core file and the Disease Severity Measures file Prior to the … Return to Introduction Variance Calculations It may be important for researchers to calculate a measure … of an appropriate method for calculating variances for nationwide estimates depends on the type of measure
  8. hcup-us.ahrq.gov/reports/methods/MS2021-02-Distance-to-Hospital.pdf
    May 26, 2021 - Weights applied to discharges sampled for Scenario 2 ................................................ … Scenarios to compare patient location, hospital location, and travel distance measures Scenario Patient … Estimating proximity to care: are straight line and zipcode centroid distances acceptable measures? … The discharge counts and weights are summarized in Table 3. Table 3. … Weights applied to discharges sampled for Scenario 2 Pairs sampled Sample, discharges Universe,
  9. hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2006_MaskedStats_Core.PDF
    January 01, 2006 - Continuous Data Elements Variable: DISCWT (Weight to ED Visits in AHA universe) Moments N 25954816 Sum Weights … Selected Continuous Data Elements Variable: AGE (Age in years at admission) Moments N 25953898 Sum Weights … Continuous Data Elements Variable: TOTCHG_ED (Total charge for ED services) Moments N 20389743 Sum Weights … of Location and Variability Tests For Location Quantiles AGE Moments Basic Measures of Location … and Variability Tests For Location Quantiles Missing Values TOTCHG_ED Moments Basic Measures
  10. hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2006v2_MaskedStats_Core.PDF
    April 08, 2010 - Continuous Data Elements Variable: DISCWT (Weight to ED Visits in AHA universe) Moments N 25702597 Sum Weights … Selected Continuous Data Elements Variable: AGE (Age in years at admission) Moments N 25701561 Sum Weights … Continuous Data Elements Variable: TOTCHG_ED (Total charge for ED services) Moments N 20393050 Sum Weights … of Location and Variability Tests For Location Quantiles AGE Moments Basic Measures of Location … and Variability Tests For Location Quantiles Missing Values TOTCHG_ED Moments Basic Measures
  11. hcup-us.ahrq.gov/reports/methods/2011_05.pdf
    January 01, 2011 - Sufficient clinical detail and accurate coding are paramount for use of claims and administrative data to measure … Sufficient clinical detail and accurate coding are paramount for use of claims and administrative data to measure … The authors suggest that tracking this as a measure of coding accuracy could also serve as an indicator … The hazards of using administrative data to measure surgical quality. … Do pre-existing complications affect the failure to rescue quality measures?
  12. 2014-04 (pdf file)

    hcup-us.ahrq.gov/reports/methods/2014-04.pdf
    January 01, 2014 - Data Elements in the NIS Disease Severity Measures Files .......................... … measure different aspects of estimate inaccuracy. … derived from ICD-9-CM codes see also: Table B-3, Data Elements in the NIS Disease Severity Measures … Data Elements in the NIS Disease Severity Measures Files Data elements that are italicized are not included … All other data elements listed below are available for all States in the 2011 NIS Disease Severity Measures
  13. hcup-us.ahrq.gov/db/nation/nis/reports/NISRedesignFinalReport040914.pdf
    June 11, 2014 - Data Elements in the NIS Disease Severity Measures Files .......................... … measure different aspects of estimate inaccuracy. … derived from ICD-9-CM codes see also: Table B-3, Data Elements in the NIS Disease Severity Measures … Data Elements in the NIS Disease Severity Measures Files Data elements that are italicized are not included … All other data elements listed below are available for all States in the 2011 NIS Disease Severity Measures
  14. hcup-us.ahrq.gov/db/nation/nrd/stats/NRD_2014_MaskedStats_Severity.PDF
    January 01, 2014 - 14,894,613 0 0.00 1.00 0.16 0.37 CM_ARTH : AHRQ comorbidity measure: Rheumatoid arthritis/collagen … measure: Obesity 14,894,613 0 0.00 1.00 0.12 0.33 CM_PARA : AHRQ comorbidity measure: Paralysis 14,894,613 … Continuous Data Elements Variable: DISCWT (Weight to discharges in AHA universe) Moments N 14894613 Sum Weights … 121379908 Corrected SS 37688993.5 Coeff Variation 67.1070468 Std Error Mean 0.00041217 Basic Statistical Measures … 1 The Report Procedure CM_WGHTLOSS Table 1 The Univariate Procedure DISCWT Moments Basic Measures
  15. hcup-us.ahrq.gov/reports/race/CostsofDisparitiesIB.pdf
    June 24, 2011 - It highlights how states measure these costs, some of the challenges states may encounter in doing … For these reasons, states often choose measures generated from less suspect race/ethnicity data such … To determine costs in the new report, the state OMHHE calculates three different measures: medical costs … the most useful way to illustrate human costs of disparities is in terms of life expectancy, as this measure … http://www.ahrq.gov/qual/qrdr10.htm This report shows the cost-effectiveness of screening measures
  16. hcup-us.ahrq.gov/datainnovations/raceethnicitytoolkit/about_grants_re.jsp
    July 01, 2016 - Procedure Classes for ICD-9-CM Surgery Flags for ICD-9-CM HCUP Supplemental Files NIS-Trend Weights … Data Improvement through Data Linkages and Data Validation New Measures to Access the Quality of Race … State Databases ( PDF file, 170 KB; HTML ) A presentation on a project to develop validated audit measures … of a project to link death certificate data with the NTR to examine the underestimation of mortality measures
  17. hcup-us.ahrq.gov/reports/methods/FinalReportonObservationStatus_v2Final.pdf
    January 01, 2010 - status” patients by hospitals is not well understood and has the potential to distort traditional measures … Utilization trends that are used to evaluate health policies, such as inpatient measures that track … This suggests that typically random error is the reason for the inconsistency across the two measures … by Source of Referral and Departure Destination, Commonwealth of Massachusetts, Fiscal Year 1998 Measure … METHODS FOR HCUP DATA EXPLORATION Observation Service Codes Other Measures FINDINGS FROM HCUP DATA
  18. hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1990_SummaryStats.PDF
    January 01, 2023 - Elements The UNIVARIATE Procedure Variable: AGE (I:Age in years at admission) Moments N 6262118 Sum Weights … Elements The UNIVARIATE Procedure Variable: LOS (I:Length of stay (cleaned)) Moments N 6261899 Sum Weights … The UNIVARIATE Procedure Variable: LOS_X (I:Length of stay (uncleaned)) Moments N 6268512 Sum Weights … Elements The UNIVARIATE Procedure Variable: TOTCHG (I:Total charges (cleaned)) Moments N 6086863 Sum Weights … UNIVARIATE Procedure Variable: TOTCHG_X (I:Total charges (from data source)) Moments N 6093563 Sum Weights
  19. hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1996_SummaryStats.PDF
    January 01, 1996 - Elements The UNIVARIATE Procedure Variable: LOS (I:Length of stay (cleaned)) Moments N 6524952 Sum Weights … The UNIVARIATE Procedure Variable: LOS_X (I:Length of stay (uncleaned)) Moments N 6542066 Sum Weights … 2005 The UNIVARIATE Procedure Variable: TOTCHG (I:Total charges (cleaned)) Moments N 6412825 Sum Weights … UNIVARIATE Procedure Variable: TOTCHG_X (I:Total charges (from data source)) Moments N 6430213 Sum Weights … UNIVARIATE Procedure Variable: DISCWT_U (H:Weight to discharges in universe) Moments N 6542069 Sum Weights
  20. hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1994_SummaryStats.PDF
    January 01, 1994 - Elements The UNIVARIATE Procedure Variable: LOS (I:Length of stay (cleaned)) Moments N 6370843 Sum Weights … The UNIVARIATE Procedure Variable: LOS_X (I:Length of stay (uncleaned)) Moments N 6385007 Sum Weights … 2005 The UNIVARIATE Procedure Variable: TOTCHG (I:Total charges (cleaned)) Moments N 6222930 Sum Weights … UNIVARIATE Procedure Variable: TOTCHG_X (I:Total charges (from data source)) Moments N 6236998 Sum Weights … UNIVARIATE Procedure Variable: DISCWT_U (H:Weight to discharges in universe) Moments N 6385011 Sum Weights

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