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61. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2018
    hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2018.jsp
    January 01, 2018 - 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, 2018 Sample Description

62. 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

63. 2003 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2003niscomparisonrpt.jsp
    May 01, 2016 - Racial Composition of the U.S., NIS Sample, and NHDS Sample, 2003 Table 6. … Sample or universe Sample Sample Sampling frame 37 states 50 states and the District of … A sample of 112 PSUs was selected. … Sample or universe Sample Universe Sampling frame 37 states 50 states and the District … Racial Composition of the U.S., NIS Sample, and NHDS Sample, 2003 Race U.S.

64. 2004 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2004niscomparisonrpt.jsp
    May 01, 2016 - 2004 HCUP Nationwide Inpatient Sample (NIS) Comparison Report … MedPAR data, in contrast, are not derived from a sample. … (MedPAR) with sample estimates (NIS). … standard errors than does a sample such as the NHDS. … Design of the Nationwide Inpatient Sample (NIS), 2004. Rockville, MD.

65. 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.

66. 2002 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2002niscomparisonrpt.jsp
    June 01, 2016 - Racial Composition of the U.S., NIS Sample, and NHDS Sample, 2002 Table 6. … Sample or universe Sample Sample Sampling frame 35 states 50 states and the District of … A sample of 112 PSUs was selected. … Sample or universe Sample Universe Sampling frame 35 states 50 states and the District … Racial Composition of the U.S., NIS Sample, and NHDS Sample, 2002 Race U.S.

67. 2001 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2001niscomparisonrpt.jsp
    November 01, 2015 - Racial Composition of the U.S., NIS Sample, and NHDS Sample, 2002 Table 6. … Sample or universe Sample Sample Sampling frame 33 states 50 states and the District of … A sample of 112 PSUs was selected. … Sample or universe Sample Universe Sampling frame 33 states 50 states and the District … Racial Composition of the U.S., NIS Sample, and NHDS Sample Race U.S.

68. 2007 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2007niscomparisonrpt.jsp
    May 01, 2016 - 2007 HCUP Nationwide Inpatient Sample (NIS) Comparison Report … DATA VISUALIZATIONS DATA QUERY TOOLS 2007 HCUP Nationwide Inpatient Sample … (NIS) Comparison Report HCUP Methods Series 2007 HCUP Nationwide Inpatient Sample (NIS) Comparison … Summary 2007 HCUP Nationwide Inpatient Sample (NIS) Comparison Report. … The NIS offers a large sample that enables study of low incidence disorders and less common procedures

69. 2005 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2005niscomparisonrpt.jsp
    November 01, 2015 - 2005 HCUP Nationwide Inpatient Sample (NIS) Comparison Report … (NIS) Comparison Report HCUP Methods Series 2005 Nationwide Inpatient Sample (NIS) Comparison … The NIS offers a large sample that enables study of low incidence disorders and less common procedures … than does a sample such as the NHDS. … Design of the Nationwide Inpatient Sample (NIS), 2005. Rockville, MD.

70. 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

71. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2018
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2018.jsp
    January 01, 2018 - WHAT'S NEW IN THE 2018 NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS)? … 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

72. 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.

73. 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

74. 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.

75. 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)?

76. 2012 HCUP National Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2012niscomparisonrpt.jsp
    April 18, 2016 - 2012 HCUP National Inpatient Sample (NIS) Comparison Report … DATA VISUALIZATIONS DATA QUERY TOOLS 2012 HCUP National Inpatient Sample … (NIS) Comparison Report HCUP Methods Series 2012 HCUP National Inpatient Sample (NIS) Comparison … Phone: 1-866-290-HCUP Recommended Citation: Houchens R, Elixhauser A. 2012 National Inpatient Sample … The NIS is a sample of discharges from short-term, acute care community hospitals.

77. 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

78. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2010
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2010.jsp
    January 01, 2010 - HCUP National Inpatient Sample (NIS) ABSTRACT The Nationwide Inpatient Sample (NIS) is part of … Moreover, the NIS is composed of all discharges from a sample of hospitals (a cluster sample). … Final Hospital Sample In Appendix I , we present three figures describing the final hospital sample … number for the total sample. … ) and N s (sample) were the number of community hospitals within stratum s in the universe and sample

79. Overview to the HCUP Nationwide Inpatient Sample (NIS), 2002
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2002.jsp
    January 01, 2002 - Overview to the HCUP Nationwide Inpatient Sample (NIS), 2002 … ABSTRACT INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS) OVERVIEW OF NIS DATA … HCUP National Inpatient Sample (NIS) ABSTRACT The Nationwide Inpatient Sample (NIS) is part of … and the NIS sample weights will not be appropriate at the State level. … Moreover, the NIS is composed of all discharges from a sample of hospitals (a cluster sample).

80. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2018
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2018.jsp
    January 01, 2018 - 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