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  1. hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2003_Design_Report_Edited_012506.pdf
    January 01, 2003 - These alternative weights were calculated in the same way as the weights for the 1998 and later years … Hospital Weights Hospital weights to the universe were calculated by post-stratification. … Within each stratum s, each NIS sample hospital's universe weight was calculated as: Ws(universe) … Discharge weights to the universe were calculated by post-stratification. … Standard errors and confidence intervals can then be calculated from the validation data.
  2. hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2005_Design_Report.pdf
    January 01, 2005 - These NIS Trends Weights were calculated in the same way as the weights for 1998 and later years of … Hospital Weights Hospital weights to the universe were calculated by post-stratification. … Within each stratum s, each NIS sample hospital's universe weight was calculated as: Ws(universe) … Discharge weights to the universe were calculated by post-stratification. … Standard errors and confidence intervals can then be calculated from the validation data.
  3. hcup-us.ahrq.gov/db/nation/kid/KIDIntroduction2022.pdf
    December 01, 2024 - These trends weights were calculated in the same way as the weights for the 2000 and later years of … Standard errors and confidence intervals can then be calculated from the validation data. … Discharge weights to the universe were calculated by post-stratification. … Within stratum k, for hospital i, each KID sample discharge's universe weight was calculated as: … • In the normal newborns strata, Rk is the frame sampling rate for normal newborns calculated as
  4. MAINTAIN AND EXPAND (pdf file)

    hcup-us.ahrq.gov/db/nation/kid/reports/KID_2000_Design_Report.pdf
    January 01, 2000 - Ideally, relationships among outcomes and their correlates calculated from the KID should hold across … Ideally, relationships among outcomes and their correlates calculated from the KID should hold across … Discharge weights to the universe were calculated by post-stratification. … Within stratum k, for hospital i, each KID sample discharge's universe weight was calculated as: … Standard errors and confidence intervals can then be calculated from the validation data.
  5. hcup-us.ahrq.gov/toolssoftware/comorbidity/comindex2012-2015.txt
    January 01, 2015 - based on the */ /* 29 comorbidity variables in HCUP databases or */ /* calculated
  6. hcup-us.ahrq.gov/reports/methods/2015_02.pdf
    January 01, 2015 - For a benchmark to be calculated, rates for at least 30 States needed to be available. … Volume measure PDI 7 (pediatric heart surgery) is also not calculated. … Volume measures IQI 1 to 7 are not calculated. … **Calculated using Kaiser Family Foundation, statehealthfacts.org. … **Calculated using Kaiser Family Foundation, statehealthfacts.org.
  7. hcup-us.ahrq.gov/reports/methods/MS2003-02%20Addendum.pdf
    December 10, 2022 - additional guidance on a SAS® option for PROC SURVEYMEANS that will ensure that the variance estimate is calculated
  8. hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2002_Design_Report.pdf
    January 01, 2002 - Hospital Weights Hospital weights to the universe were calculated by post-stratification. … Within each stratum s, each NIS sample hospital's universe weight was calculated as: Ws(universe) … Discharge weights to the universe were calculated by post-stratification. … Within stratum s, for hospital i, each NIS sample discharge's universe weight was calculated as: … Standard errors and confidence intervals can then be calculated from the validation data.
  9. hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2001_Design_Report.pdf
    January 01, 2001 - Hospital Weights Hospital weights to the universe were calculated by post-stratification. … Within each stratum s, each NIS sample hospital's universe weight was calculated as: Ws(universe) … Discharge weights to the universe were calculated by post-stratification. … Within stratum s, for hospital i, each NIS sample discharge's universe weight was calculated as: … Standard errors and confidence intervals can then be calculated from the validation data.
  10. hcup-us.ahrq.gov/db/nation/nis/APS_DRGsWeightsV26Public.pdf
    April 01, 2010 - Means are recalculated and weights are derived by dividing these means by averages calculated across … Finally, a series of summary statistics were calculated from the output files to assess data quality … CALCULATE AND APPLY TRIMS Initial outlier trim points were calculated at 3.0 standard deviations from … Using these trimmed data, a second set of trim points was calculated, again using 3.0 standard deviations … The latter was calculated by dividing the total days, charges, or deaths in the input database by the
  11. hcup-us.ahrq.gov/db/nation/nis/APS-DRGs-Weights_Public_v24.pdf
    March 01, 2008 - Means are recalculated and weights are derived by dividing these means by averages calculated across … Finally, a series of summary statistics were calculated from the output files to assess data quality … CALCULATE AND APPLY TRIMS Initial outlier trim points were calculated at 3.0 standard deviations from … Using these trimmed data, a second set of trim points was calculated, again using 3.0 standard deviations … The latter was calculated by dividing the total days, charges, or deaths in the input database by the
  12. hcup-us.ahrq.gov/db/ccr/ed-ccr/ED_CCR_User_Guide_External_2012-2020.pdf
    January 01, 2020 - Hospital-specific CCRs calculated in this way are not included in the CCR Files when there is no cost … The GAPECC is calculated within State and for each of these groupings. … The GAPECC is calculated within State and for each of these groupings. … Set to missing when there is no cost information in the HCRIS (PPS) data or the calculated cost-to-charge … DRG cost estimates relied on CCRs calculated from the cost reports and were integral to creation of
  13. hcup-us.ahrq.gov/db/ccr/ed-ccr/ED_CCR_User_Guide_External_2012-2021.pdf
    January 01, 2021 - • Finally, the emergency department CCR is calculated as the quotient of emergency services outpatient … Hospital-specific CCRs calculated in this way are not included in the CCR Files when there is no cost … The GAPECC is calculated within State and for each of these groupings. … The GAPECC is calculated within State and for each of these groupings. … DRG cost estimates relied on CCRs calculated from the cost reports and were integral to creation of
  14. hcup-us.ahrq.gov/db/ccr/ed-ccr/ED-CCR-User-Guide_Public_FINAL.pdf
    October 01, 2022 - Hospital-specific CCRs calculated in this way are not included in the CCR Files when there is no cost … The GAPECC is calculated within State and for each of these groupings. … The GAPECC is calculated within State and for each of these groupings. … Set to missing when there is no cost information in the HCRIS (PPS) data or the calculated cost-to-charge … DRG cost estimates relied on CCRs calculated from the cost reports and were integral to creation of
  15. hcup-us.ahrq.gov/reports/methods/MS2021-02-Distance-to-Hospital.jsp
    May 26, 2021 - HCUP Methods Series Methods for Calculating Patient Travel Distance to Hospital in HCUP Data   Report #2021-02   Contact Information: Healthcare Cost and Utilization Project (HCUP) Agency for Healthcare Research and Quality 5600 Fishers Lane Room 07W17B Mail Stop 7W25B Rockville, …
  16. hcup-us.ahrq.gov/reports/methods/2018-01.pdf
    January 01, 2018 - For a benchmark to be calculated, rates for at least 30 States needed to be available. … Volume measure PDI 7 (pediatric heart surgery) is also not calculated. … Volume measures IQI 1 to 7 are not calculated. … **Calculated using Kaiser Family Foundation, statehealthfacts.org. … The adjusted rate was calculated as follows (and subsequently multiplied by 100,000): .
  17. hcup-us.ahrq.gov/reports/methods/2016-01.pdf
    January 01, 2016 - These summary measures were calculated as a weighted sum of risk-adjusted rates for individual IQIs … For a benchmark to be calculated, rates for at least 30 States needed to be available. … Volume measure PDI 7 (pediatric heart surgery) is also not calculated. … Volume measures IQI 1 to 7 are not calculated. … **Calculated using Kaiser Family Foundation, statehealthfacts.org.
  18. hcup-us.ahrq.gov/reports/methods/2017-03.pdf
    January 01, 2017 - For a benchmark to be calculated, rates for at least 30 States needed to be available. … Volume measure PDI 7 (pediatric heart surgery) is also not calculated. … Volume measures IQI 1 to 7 are not calculated. … **Calculated using Kaiser Family Foundation, statehealthfacts.org. … The adjusted rate was calculated as follows (and subsequently multiplied by 100,000): .
  19. hcup-us.ahrq.gov/db/nation/nrd/stats/FileSpecifications_NRD_2015Q4_DX_PR_GRPS.TXT
    October 31, 2017 - NRD_2015Q4_DX_PR_GRPS 3 DRG_NoPOA 3 Num DRG in use on discharge date, calculated … NRD_2015Q4_DX_PR_GRPS 60 MDC_NoPOA 2 Num MDC in use on discharge date, calculated
  20. hcup-us.ahrq.gov/db/nation/kid/reports/Kid_1997_designreport.pdf
    January 01, 1997 - Universe Discharge Weights Discharge weights to the universe were calculated by post-stratification … Within stratum k, for hospital I, each KID sample discharge's universe weight was calculated as: W … the uncomplicated birth strata, R is the frame sampling rate for uncomplicated in-hospital birthsk calculated … in-hospital birth, complicated in-hospital birth or non-birth pediatric discharge) in stratum k, R , was calculated … Standard errors and confidence intervals can then be calculated from the validation data.

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