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Showing results for "sample".

161. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2004_Design_Report.pdf
     January 01, 2004 - Final Hospital Sample The final 2004 sample included 8,004,571 discharges from 1,004 hospitals selected … Sample Weights It is necessary to incorporate sample weights to obtain nationwide estimates. … number for the total sample. … The total sample exceeded the target by 23 hospitals, with a resulting sample of 20.5% of the total … and Ns(sample) were the number of community hospitals within stratum s in the universe and sample,

162. HCUP-US NIS Overview
     hcup-us.ahrq.gov/nisoverview.jsp
     July 01, 2025 - (NIS) The National (Nationwide) Inpatient Sample (NIS) is part of a family of databases and software … For prior years, the NIS was a sample of hospitals . … " to the " National Inpatient Sample." … The redesign incorporates three major types of changes: Revisions to the sample design - the NIS … is now a sample of discharge records from all HCUP-participating hospitals, rather than a sample of hospitals

163. Microsoft Word - CentralDistributor_NIS88-97binderV5.doc (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/NIS88-92Overview_122104.pdf
     November 01, 2015 - Agency for Healthcare Research and Quality OVERVIEW OF THE HCUP NATIONWIDE INPATIENT SAMPLE … ................................................................... 2 HCUP NATIONWIDE INPATIENT SAMPLE … .................................................... 3 Correction to the 1993 Nationwide Inpatient Sample … OVERVIEW OF DATA PRODUCTS FROM THE NATIONWIDE INPATIENT SAMPLE (NIS) ............................... … The HCUP-3 Nationwide Inpatient Sample (NIS), Release 1, includes: 20% sample of U.S. community hospitals

164. MAINTAIN AND EXPAND (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/reports/KID_2000_Design_Report.pdf
     January 01, 2000 - This report describes the 2000 KID sample design and summarizes the sample contents. … Sample Design Design Considerations The overall design objective was to select a sample of pediatric … resultant sample. … • “KID Sample Hospitals@ lists the hospitals selected for the KID. … In some instances, strata were collapsed for sample weight calculations.

165. HCUPanalysisSepsisTrendsUS (pdf file)
     hcup-us.ahrq.gov/reports/ataglance/HCUPanalysisSepsisTrendsUS.pdf
     November 10, 2020 - Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) ................... 8 … to sepsis were derived from the Healthcare Cost and Utilization project (HCUP) National Inpatient Sample … HEALTHCARE COST AND UTILIZATION PROJECT (HCUP) NATIONAL INPATIENT SAMPLE (NIS) The Healthcare Cost … Beginning in 2012, the HCUP National Inpatient Sample (NIS) approximates a 20-percent stratified sample … Healthcare Cost and Utilization Project (HCUP) National Inpatient Sample (NIS) Appendix B.

166. 2006 05 Nistrendsreport 1988-2004A (pdf file)
     hcup-us.ahrq.gov/reports/methods/2006_05_NISTrendsReport_1988-2004A.pdf
     January 01, 2006 - • Changes in sample design 1998. … SPAN 2012 The effects of the 2012 sample redesign are detailed in the Nationwide Inpatient Sample … of NIS sample estimates. … Switching to the systematic sample design from the present NIS sample design3 2. … Even in statistical routines that fail to account for the sample design, the sample weights usually

167. Kid 1997 Designreport (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/reports/Kid_1997_designreport.pdf
     January 01, 1997 - sample. … , leaving 2,521 hospitals in the KID nationwide sample. … All frame hospitals with pediatric discharges were included in the sample. … Therefore, sample weights were developed to weight the KID nationwide sample discharges to the AHA universe … In some instances, strata were collapsed for sample weight calculations.

168. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
     hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2016.pdf
     January 01, 2016 - • The HCUP Sample Design tutorial is designed to help users learn how to account for sample design … • Examine the strata with deficient ratios or sample sizes. … Computation of sample weights is straightforward. … universe to sample encounter volumes so that the sample volume is inflated to agree with the universe … NASS Target Universe, Sampling Frame, and Final Sample Characteristics, 2016 Sample Description

169. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
     hcup-us.ahrq.gov/db/nation/nass/2017_NASS_Introduction.pdf
     January 01, 2017 - • The HCUP Sample Design tutorial is designed to help users learn how to account for sample design … On the basis of the set of NASS sample hospitals and universe totals, sample weights are computed that … Computation of sample weights is straightforward. … universe to sample encounter volumes so that the sample volume is inflated to agree with the universe … NASS Target Universe, Sampling Frame, and Final Sample Characteristics, 2017 Sample Description

170. Figure 4: Number of Hospitals in the 2006 Universe, Frame, and Sample for Frame States
     hcup-us.ahrq.gov/figures/nis_figure4_2008.jsp
     January 01, 2008 - Figure 4: Number of Hospitals in the 2006 Universe, Frame, and Sample for Frame States … Figure 4: Number of Hospitals in the 2006 Universe, Frame, and Sample for Frame States States … Hospitals in Universe Number of Hospitals in Frame (and percent of universe) Number of Hospitals in Sample

171. MAINTAIN AND EXPAND (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/reports/Changes_in_NIS_Design_1998.pdf
     January 01, 1998 - Sample Weights In prior versions of the NIS, sample weights were developed separately for hospital … Summary of Changes Sample Design The new sample design is similar to the previous design. … Sample Size We will continue to sample a number of hospitals equal to 20 percent of the universe … We drew a NIS sample using the new sample design. … Summary of Changes Sample Design Sample Weights Sample Design Longitudinal Component Comparison

172. MAINTAIN AND EXPAND (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/reports/KID_2003_Design_Edited_013006.pdf
     January 01, 2003 - Sample Design Design Considerations The overall design objective was to select a sample of pediatric … Another strategy is to use sample weight adjustments to compensate for missing values. … • “KID Sample Hospitals@ lists the hospitals selected for the KID. … In some instances, strata were collapsed for sample weight calculations. … Different methods are used for calculating variances under the two sample theories.

173. Figure 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States
     hcup-us.ahrq.gov/figures/4_02.jsp
     Figure 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States Figure … 4 : Number of Hospitals in the 2002 Universe, Frame, and Sample for Frame States States Number … of Hospitals in Universe Number of Hospitals in Frame Number of Hospitals in Sample Percentage

174. Figure 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States
     hcup-us.ahrq.gov/figures/4_01.jsp
     Figure 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States Figure … 4 : Number of Hospitals in the 2001 Universe, Frame, and Sample for Frame States States Number … of Hospitals in Universe Number of Hospitals in Frame Number of Hospitals in Sample Percentage

175. Kid 2022 Maskedstats Hospital (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2022_MaskedStats_Hospital.PDF
     January 01, 2022 - births in the stratum 3,811 134 173,921 26,159.8 7,509 99,694,878 S_CHLD_U : Number of sample pediatric … non-births in the stratum 3,811 2 422,985 27,826.0 4,660 106,044,853 S_CMPB_U : Number of sample other … newborns in the stratum 3,811 0 156,764 22,907.5 6,233 87,300,407 S_DISC_U : Number of sample newborns … and children in the stratum 3,811 330 432,663 54,006.3 12,193 205,817,952 S_HOSP_U : Number of sample … hospitals in the stratum 3,811 2 189 74.1 70 282,489 S_UNCB_U : Number of sample normal newborns in

176. Figure 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States
     hcup-us.ahrq.gov/figures/4_03.jsp
     Figure 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States Figure … 4 : Number of Hospitals in the 2003 Universe, Frame, and Sample for Frame States States Number … of Hospitals in Universe Number of Hospitals in Frame Number of Hospitals in Sample Percentage

177. Figure 4 : Number of Hospitals in the 2005 Universe, Frame, and Sample for Frame States
     hcup-us.ahrq.gov/figures/4_05.jsp
     Figure 4 : Number of Hospitals in the 2005 Universe, Frame, and Sample for Frame States Figure … 4 : Number of Hospitals in the 2005 Universe, Frame, and Sample for Frame States States Number … Hospitals in Universe Number of Hospitals in Frame (and percent of universe) Number of Hospitals in Sample

178. Figure 4 : Number of Hospitals in the 2004 Universe, Frame, and Sample for Frame States
     hcup-us.ahrq.gov/figures/4_04.jsp
     Figure 4 : Number of Hospitals in the 2004 Universe, Frame, and Sample for Frame States Figure … 4 : Number of Hospitals in the 2004 Universe, Frame, and Sample for Frame States States Number … Hospitals in Universe Number of Hospitals in Frame (and percent of universe) Number of Hospitals in Sample

179. Checklist for Working with the NASS
     hcup-us.ahrq.gov/db/nation/nass/nasschecklist.jsp
     November 01, 2024 -   ⬜ Types of records included in the sample may change over time. … Prior to data year 2019, the NASS sample was limited to SASD encounters that involved surgeries defined … To learn more about how to account for sample design when working with the HCUP nationwide databases, … view the HCUP Sample Design tutorial on the HCUP Online Tutorial Series page on HCUP-US. … Review the HCUP Methods Series Report # 2003-02, Calculating Nationwide Inpatient Sample Variances .

180. MAINTAIN AND EXPAND (pdf file)
     hcup-us.ahrq.gov/reports/methods/1998ChangesintheNISRedesignFinal.pdf
     January 18, 2002 - Sample Weights In prior versions of the NIS, sample weights were developed separately for hospital … Summary of Changes Sample Design The new sample design is similar to the previous design. … Sample Size We will continue to sample a number of hospitals equal to 20 percent of the universe … We drew a NIS sample using the new sample design. … Summary of Changes Sample Design Sample Weights Sample Design Longitudinal Component Comparison