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Showing results for "sample".

41. HCUP Nationwide Inpatient Sample Redesign Final Report
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2012_Redesign_report.jsp
    January 01, 2012 - The systematic sample is a self-weighted sample design that is similar to simple random sampling, but … For example, if we sample at a rate of 20 percent, then we will sample every 5 th discharge. … sample designs. … will have equal sample weights). … sample (SYS).

42. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2019
    hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2019.jsp
    January 01, 2019 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in … 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, 2019 Sample Description

43. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2020
    hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2020.jsp
    January 01, 2020 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in … 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, 2020 Sample Description

44. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2019
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2019.jsp
    January 01, 2019 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in their … The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in their … and N s (sample) were the number of hospital-owned EDs within stratum s in the universe and sample, … A larger sample would be cumbersome for data users, given that a 20-percent sample contains about 30 … ED visit information from a sample of EDs HCUP Nationwide Emergency Department Sample Nationwide

45. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2020
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2020.jsp
    January 01, 2020 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in their … The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in their … and N s (sample) were the number of hospital-owned EDs within stratum s in the universe and sample, … A larger sample would be cumbersome for data users, given that a 20-percent sample contains about 30 … ED visit information from a sample of EDs HCUP Nationwide Emergency Department Sample Nationwide

46. HCUP Nationwide Inpatient Sample Design Report 1992-1988
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1992_1988_Design_Report.jsp
    January 01, 1992 - hospital sample. … Likewise, once the 1989 hospital sample was drawn, it was necessary to draw the 1990 sample in a way … NIS Hospital Sample   Regular Sample Total Sample Calendar Year Number of Hospitals … ) = N s (frame) ÷ N s (sample). … N s (sample) was the number of sample hospitals selected for the NIS in stratum s.

47. NIS File Specifications
    hcup-us.ahrq.gov/db/nation/nis/nisfilespecs.jsp
    November 01, 2024 - Severity Measures Files, Diagnosis and Procedure Groups Files, and database 10% Sample files are … 1 10% Sample File #2 Data Set Name: NIS_2004_10PCT_SAMPLE_B.ASC Number of Records: … : 800,457 Record layout NIS 2004 Severity Sample 2 Top 2003 NIS Core File … 1 10% Sample File #2 Data Set Name: NIS_2003_10PCT_SAMPLE_B.ASC Number of Records: … : 797,773 Record layout NIS 2003 Severity Sample 2 Top 2002 NIS Core File

48. Introduction to the HCUP National Inpatient Sample (NIS) 2021 (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2021.pdf
    February 01, 2024 - HCUP National Inpatient Sample (NIS) ABSTRACT The National Inpatient Sample (NIS) is part of the … is now a sample of discharge records from all HCUP-participating hospitals, rather than a sample of … Rather than first drawing a sample of hospitals and then keeping all discharges from that sample, in … Rather than first drawing a sample of hospitals and then keeping all discharges from that sample, in … The new systematic sample is a self-weighted sample design similar to simple random sampling, but it

49. NIS Summary Statistics
    hcup-us.ahrq.gov/db/nation/nis/nissummstats.jsp
    November 01, 2024 - The following links provide summary statistics for the National (Nationwide) Inpatient Sample (NIS). … File #1 (PDF file, 239 KB) SumStats NIS 2004 10% Sample File #2 (PDF file, 239 KB) SumStats NIS … File #1 (PDF file, 252 KB) SumStats NIS 2004 Severity 10% Sample File #2 (PDF file, 252 KB) … File #1 (PDF file, 224 KB) SumStats NIS 2003 10% Sample File #2 (PDF file, 224 KB) SumStats NIS … File #1 (PDF file, 187 KB) SumStats NIS 2003 Severity 10% Sample File #2 (PDF file, 246 KB)

50. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
    hcup-us.ahrq.gov/reports/methods/2003_02.pdf
    January 01, 2003 - NIS Sample Design The final sample design is as follows. … NIS Sample Weights The discharge sample weights are calculated within each sampling stratum as the … However, the sample of NIS discharges is not a simple random sample. … We will consider the NIS sample as a two-stage cluster sample, even though the sampling rate was 100 … fsh = the proportion of the discharges in the sample from sample hospital h within stratum s.

51. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
    hcup-us.ahrq.gov/reports/methods/2015-09.pdf
    January 01, 2015 - However, the sample of NIS discharges is not a simple random sample. … Although the NIS sample design is not a cluster sample per-se, the sample is stratified on hospital … Consequently, the NIS sample resembles a stratified two-stage cluster sample. … The NIS sample weights are constant. … fsh = the proportion of the discharges in the sample from sample hospital h within stratum s.

52. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
    hcup-us.ahrq.gov/reports/methods/2005-07.pdf
    January 01, 2005 - KID Sample Weights For the discharge sample weights, we post-stratified hospitals on six characteristics … However, the sample of KID discharges is not a simple random sample. … fsh = the proportion of the discharges in the sample from sample hospital h within stratum s. … For the sample selection procedure, the sample design can be a complex multistage sample design that … HCUP KID 12/16/05 B-6 Appendix B EXECUTIVE SUMMARY INTRODUCTION KID Sample Design KID Sample

53. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2017
    hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2017.jsp
    January 01, 2017 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in … 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

54. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2016
    hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2016.jsp
    January 01, 2016 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in … 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, 2016 Sample Description

55. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
    hcup-us.ahrq.gov/db/nation/kid/reports/CalculatingKIDVariances.pdf
    December 16, 2005 - KID Sample Weights For the discharge sample weights, we post-stratified hospitals on six characteristics … However, the sample of KID discharges is not a simple random sample. … fsh = the proportion of the discharges in the sample from sample hospital h within stratum s. … For the sample selection procedure, the sample design can be a complex multistage sample design that … HCUP KID 12/16/05 B-6 Appendix B EXECUTIVE SUMMARY INTRODUCTION KID Sample Design KID Sample

56. Introduction To The HCUP Nationwide Emergency Department Sample (NEDS) 2021 (pdf file)
    hcup-us.ahrq.gov/db/nation/neds/NEDSIntroduction2021.pdf
    March 01, 2024 - The HCUP Sample Design tutorial is designed to help users learn how to account for sample design in … ) ÷ Ns(sample) where Ws(universe) was the ED universe weight, and Ns(universe) and Ns(sample) were … A larger sample would be cumbersome for data users, given that a 20-percent sample contains about 30 … ED visit information from a sample of EDs HCUP Nationwide Emergency Department Sample Nationwide … WHAT’S NEW IN THE 2021 NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)?

57. HCUP-US Index Page
    hcup-us.ahrq.gov/tech_assist/index_mno.jsp
    August 01, 2020 - Department Sample (NEDS) Nationwide Emergency Department Sample (NEDS) - Data Elements Nationwide … Emergency Department Sample (NEDS) - Data Use Agreement Nationwide Emergency Department Sample (NEDS … Sample - Overview NIS - National (Nationwide) Inpatient Sample - Purchasing Data NIS - National … (Nationwide) Inpatient Sample - Reports NIS - National (Nationwide) Inpatient Sample - SAS, SPSS and … Stata Programs NIS - Nationwide Inpatient Sample - Calculating Nationwide Inpatient Sample Variances

58. HCUP Methods Series Calculating National Inpatient Sample (NIS) Variances for Data Years 2012 and Later
    hcup-us.ahrq.gov/reports/methods/2015_09.jsp
    January 01, 2015 - Top NIS Sample Design For the NIS data years 2012 and later, the final sample design is as follows … Although the NIS sample design is not a cluster sample per-se, the sample is stratified on hospital … Consequently, the NIS sample resembles a stratified two-stage cluster sample. … The NIS sample weights are constant. … f sh = the proportion of the discharges in the sample from sample hospital h within stratum s .

59. HCUP Infographics
    hcup-us.ahrq.gov/reports/infographics.jsp
    October 01, 2022 - (NIS) and Nationwide Emergency Department Sample (NEDS) .   … (NIS) and Nationwide Emergency Department Sample (NEDS) .   … (NIS) and Nationwide Emergency Department Sample (NEDS) .   … (NIS) , Nationwide Emergency Department Sample (NEDS) .   … (NIS) and Nationwide Emergency Department Sample (NEDS) ; HCUP Fast Stats .  

60. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2020
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2020.jsp
    January 01, 2020 - HCUP National Inpatient Sample (NIS) ABSTRACT The National Inpatient Sample (NIS) is part of the … First, the sample design was revised to create a sample of discharge records from all HCUP-participating … Rather than first drawing a sample of hospitals and then keeping all discharges from that sample, in … Rather than first drawing a sample of hospitals and then keeping all discharges from that sample, in … The new systematic sample is a self-weighted sample design similar to simple random sampling, but it