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181. Characteristics of 30-Day All-Cause Hospital Readmissions, 2016–2020 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb304-readmissions-2016-2020.pdf
     January 01, 2020 - b The readmission rate is calculated using discharges from January through November to allow for a 30 … c The number of readmissions is the 12-month count calculated by multiplying the readmission rate by … b The number of readmissions is the 12-month count calculated by multiplying the readmission rate by … b The readmission rate is calculated using discharges from January through November to allow for a 30 … c The number of readmissions is the 12-month count calculated by multiplying the readmission rate by

182. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2019.pdf
     September 01, 2021 - Population Covered in the 2019 NIS by Census Division and Region, Calculated using the Estimated U.S … totals of patients for a hospital) could be calculated for each sampled hospital. … Standard errors and confidence intervals can then be calculated from the validation data. … NIS discharge weights are calculated by dividing the number of universe discharges by the number of … Population Covered in the 2019 NIS by Census Division and Region, Calculated using the Estimated U.S

183. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2016
     hcup-us.ahrq.gov/db/nation/kid/kid_2016_introduction.jsp
     January 01, 2016 - These trends weights were calculated in the same way as the weights for the 2000 and later years of the … 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: … Population in 2016 KID States, by Region Calculated using the estimated U.S. population on July 1, 2016

184. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2019
     hcup-us.ahrq.gov/db/nation/kid/kid_2019_introduction.jsp
     January 01, 2012 - These trends weights were calculated in the same way as the weights for the 2000 and later years of the … 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, R k is the frame sampling rate for normal newborns calculated as

185. Introduction To The HCUP Nationwide Emergency Department Sample (NEDS) 2021 (pdf file)
     hcup-us.ahrq.gov/db/nation/neds/NEDSIntroduction2021.pdf
     March 01, 2024 - Hospital Weights Hospital weights were calculated by stratum. … Discharge Weights Discharge weights were also calculated by stratum. … Estimates of aggregate charges should be calculated as the product of the number of discharges times … Standard errors and confidence intervals then can be calculated from the validation data. … b NHIS estimates were calculated using the values provided in the survey (0, 1, 2, 3, 4+).

186. Statistical Brief #118
     hcup-us.ahrq.gov/reports/statbriefs/sb118.jsp
     August 01, 2011 - Rates calculated using resident population for July 2009 from the U.S. … Rates calculated using resident population for July 2009 from the U.S. … Rates calculated using resident population from the U.S. … † Calculated using resident population for July 2009 from the U.S. … † Calculated using resident population for July 2009 from the U.S.

187. Methods – Applying HCUP Quality Indicators (pdf file)
     hcup-us.ahrq.gov/reports/methods/2010_06.pdf
     January 01, 2010 - Total national costs associated with potentially avoidable hospitalizations were calculated overall … For a benchmark to be calculated, rates for at least 30 States needed to be available. … **Calculated using Kaiser Family Foundation, statehealthfacts.org. … For NIS estimates and the disparities analysis file, the standard errors are calculated as described … The adjusted rate was calculated as follows (and subsequently multiplied by 100,000): .

188. C:\unzipped\Methods Series Reports to Convert\Comparison_Report_NIS1 1988-92.wpd (pdf file)
     hcup-us.ahrq.gov/reports/methods/Comparison_Report_NIS11988-92Final.pdf
     July 11, 1996 - Most statistics calculated from the NIS are consistent with those from the NHDS. … NIS statistics were mainly compared with those calculated from the following three data sources: 1 … Statistics calculated from the NHDS do have sampling error. … An important difference is the calculated in-hospital mortality rate for the South. … The standard errors were calculated as follows.

189. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2020
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2020.jsp
     January 01, 2020 - Hospital Weights Hospital weights were calculated by stratum. … Discharge Weights Discharge weights were also calculated by stratum. … Sampling probabilities were calculated to select 20 percent of the universe contained in each stratum … Standard errors and confidence intervals then can be calculated from the validation data. … b NHIS estimates were calculated using the values provided in the survey (0, 1, 3, 4+).

190. Summarystats Nis 2001 Quality Report (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/tools/stats/SummaryStats_NIS_2001_Quality_Report.PDF
     January 01, 2001 - AGE and LOS calculated in a manner consistent with methods used for HCUP processing, thus these data

191. Nis 1999 Quality Report2 (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1999_Quality_Report2.pdf
     January 01, 1999 - AGE and LOS calculated in a manner consistent with methods used for HCUP processing, thus these data

192. Nis 2000 Quality Report (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_2000_Quality_Report.PDF
     January 01, 2000 - AGE and LOS calculated in a manner consistent with methods used for HCUP processing, thus these data

193. Nis 1999 Quality Report (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1999_Quality_Report.pdf
     January 01, 1999 - AGE and LOS calculated in a manner consistent with methods used for HCUP processing, thus these data

194. Nis 1998 Quality Report2 (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1998_Quality_Report2.PDF
     January 01, 1998 - AGE and LOS calculated in a manner consistent with methods used for HCUP processing, thus these data

195. Nis 1998 Quality Report (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/tools/stats/NIS_1998_Quality_Report.PDF
     January 01, 1998 - AGE and LOS calculated in a manner consistent with methods used for HCUP processing, thus these data

196. IPCCR_UserGuide_2012-2019 (pdf file)
     hcup-us.ahrq.gov/db/ccr/ip-ccr/IPCCR-UserGuide-2012-2019.pdf
     January 01, 2019 - • Service group-level inpatient CCRs are calculated as the ratio of estimated inpatient costs to … • Hospital-level inpatient CCRs are calculated by summing the service group inpatient costs and … Hospital-specific CCRs calculated in this way are not included in the CCR Files when there is no cost … The GAPICC is calculated within State and for each of these groupings. … The GAPICC is calculated within State and for each of these groupings.

197. ___APS-DRGs-Weights_Public.book (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/APS-DRGs%20V23%20Weights%20Manual.pdf
     August 01, 2006 - 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 … CAL CUL ATE A ND APPLY TR IMS Initial outlier trim points were calculated at 3.0 standard deviations … 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

198. ___APS-DRGs-Weights_Public.book (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/APS-DRGsWeightsV25Public.pdf
     June 01, 2009 - 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

199. Healthcare Cost and Utilization Project (HCUP) NRD Notes
     hcup-us.ahrq.gov/db/vars/nrd_daystoevent/nrdnote.jsp
     August 01, 2015 - The timing variable (NRD_DaysToEvent) was calculated consistently for each verified patient linkage (

200. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2017
     hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2017.jsp
     January 01, 2017 - Population Covered in the 2017 NIS by Census Division and Region, Calculated using the Estimated U.S. … totals of patients for a hospital) could be calculated for each sampled hospital. … Standard errors and confidence intervals can then be calculated from the validation data. … universe weight was calculated as: DW s (universe) = DN s (universe) ÷ DN s (sample) where DW s … Population Covered in the 2017 NIS by Census Division and Region, Calculated using the Estimated U.S.