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61. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2019
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2019.jsp
    January 01, 2019 - 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

62. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2021
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2021.jsp
    January 01, 2021 - HCUP National Inpatient Sample (NIS) ABSTRACT The National Inpatient Sample (NIS) is part of the … Rather than first drawing a sample of hospitals and then keeping all discharges from that sample … The systematic sample starting in 2012 is a self-weighted sample design similar to simple random sampling … Rather than first drawing a sample of hospitals and then keeping all discharges from that sample, … The new systematic sample is a self-weighted sample design similar to simple random sampling, but

63. HCUP Methods Series Calculating Nationwide Inpatient Sample (NIS) Variances for Data Years 2011 and Earlier
    hcup-us.ahrq.gov/reports/methods/2003_02.jsp
    January 01, 2003 - Top 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 … Consequently, the NIS sample resembles a stratified single-stage cluster sample with hospitals as the … f sh = the proportion of the discharges in the sample from sample hospital h within stratum s . … , or multistage sample designs.

64. INTRODUCTION TO THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2019 (pdf file)
    hcup-us.ahrq.gov/db/nation/nass/2019_NASS_Introduction.pdf
    January 01, 2019 - • 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, 2019 Sample Description

65. 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.

66. 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.

67. 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.

68. 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.

69. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2017
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2017.jsp
    January 01, 2017 - ) 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 … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … ED visit information from a sample of EDs HCUP Nationwide Emergency Department Sample (NEDS) Nationwide

70. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2014
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2014.jsp
    January 01, 2014 - ) 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 … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … ED visit information from a sample of EDs HCUP Nationwide Emergency Department Sample (NEDS) Nationwide

71. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2013
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2013.jsp
    January 01, 2013 - ) and N s (sample) were the number of hospital-based 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 … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

72. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2012
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2012.jsp
    January 01, 2012 - ) and N s (sample) were the number of hospital-based 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 31 million … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … The HCUP Nationwide Inpatient Sample (NIS)) prior to 2012 used stratified sample design similar to the … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

73. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2011
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2011.jsp
    January 01, 2011 - The NIS is a sample of U.S. hospitals; the NEDS is a sample of U.S. hospital-based EDs. … ) and N s (sample) were the number of hospital-based EDs within stratum s in the universe and sample … A larger sample would be cumbersome for data users, given that a 20% sample contains 29 million records … The HCUP Nationwide Inpatient Sample (NIS) uses the same stratified sample design, so techniques appropriate … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

74. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2010
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2010.jsp
    January 01, 2010 - The NIS is a sample of U.S. hospitals; the NEDS is a sample of U.S. hospital-based EDs. … ) and N s (sample) were the number of hospital-based EDs within stratum s in the universe and sample … A larger sample would be cumbersome for data users, given that a 20% sample contains over 29 million … The HCUP Nationwide Inpatient Sample (NIS) uses the same stratified sample design, so techniques appropriate … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

75. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2009
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2009.jsp
    January 01, 2009 - The NIS is a sample of U.S. hospitals; the NEDS is a sample of U.S. hospital-based EDs. … ) and N s (sample) were the number of hospital-based EDs within stratum s in the universe and sample … A larger sample would be cumbersome for data users, given that a 20% sample contains over 29 million … The HCUP Nationwide Inpatient Sample (NIS) uses the same stratified sample design, so techniques appropriate … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

76. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2008
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2008.jsp
    January 01, 2008 - The main objective of a stratified sample is to ensure that the sample is representative of the target … ) and N s (sample) were the number of hospital-based EDs within stratum s in the universe and sample … A larger sample would be cumbersome for data users given that a 20% sample contains over 28 million records … The HCUP Nationwide Inpatient Sample (NIS) uses the same stratified sample design, so techniques appropriate … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

77. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2007
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2007v2.jsp
    November 01, 2015 - The main objective of a stratified sample is to ensure that the sample is representative of the target … ) and N s (sample) were the number of hospital-based EDs within stratum s in the universe and sample … A larger sample would be cumbersome for data users given that a 20% sample contains over 25 million … The HCUP Nationwide Inpatient Sample (NIS) uses the same stratified sample design, so techniques appropriate … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

78. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2006
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2006v2.jsp
    November 01, 2015 - The main objective of a stratified sample is to ensure that the sample is representative of the target … ) and N s (sample) were the number of hospital-based EDs within stratum s in the universe and sample … A larger sample would be cumbersome for data users given that a 20% sample contains over 25 million … The HCUP Nationwide Inpatient Sample (NIS) uses the same stratified sample design, so techniques appropriate … ED visit information from a sample of hospital-based EDs HCUP Nationwide Emergency Department Sample

79. 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

80. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2016
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2016.jsp
    January 01, 2016 - ) 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 … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … The HCUP Nationwide Inpatient Sample (NIS) prior to 2012 used stratified sample design similar to the … ED visit information from a sample of EDs HCUP Nationwide Emergency Department Sample (NEDS) Nationwide