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Showing results for "design sample size".

61. 2002 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2002niscomparisonrpt.jsp
    June 01, 2016 - Although the smaller sample size rendered NHDS estimates less precise than NIS estimates, the complete … Because of the limited sample size, valid estimates were not available for all breakdowns of the NHDS … We must emphasize that the NIS provides a large sample size that tends to yield estimates with much smaller … Because NIS estimates have greater precision � the result of the large sample size � it may be preferred … Where a comprehensive geographic representation is more important than a large sample size, and the question

62. MAINTAIN AND EXPAND (pdf file)
    hcup-us.ahrq.gov/reports/methods/2000NISComparisonReportFinal.pdf
    February 28, 2003 - Although the smaller sample size rendered the NHDS estimates less precise than the NIS estimates, the … size of the NHDS, yielding insufficient sample sizes to produce valid estimates. … We must emphasize that the NIS provides a large sample size that tends to yield estimates with much … Because NIS estimates have greater precision rooted in a large sample size, it may be preferred for … Where a comprehensive geographic representation is more important than a large sample size, and the

63. 2017-02 (pdf file)
    hcup-us.ahrq.gov/reports/methods/2017-02.pdf
    January 01, 2017 - Increasing the sample size would increase the power to detect small differences for rare conditions. … Increasing the sample size would increase the power to detect small differences for rare conditions. … One issue with increasing the sample size is a possible shortage of HCUP hospitals for sampling in certain … If we increase the sample size to 30 percent, there would be 42 strata (six more strata than with a … If we increase the sample size to 40 percent, there would be 50 strata (14 more strata than a 20 percent

64. MAINTAIN AND EXPAND (pdf file)
    hcup-us.ahrq.gov/db/nation/kid/reports/KID_2003_Design_Edited_013006.pdf
    January 01, 2003 - ......................................................................................... i Sample Design … Sample Design Design Considerations The overall design objective was to select a sample of pediatric … HCUP KID 2003 (01/30/2006) 4 Design of the HCUP KID, 2003 5. … of the HCUP KID, 2003 SAMPLE DESIGN Design Considerations The overall design objective was to … HCUP KID 2003 (01/30/2006) 25 Design of the HCUP KID, 2003 Introduction Sample Design Design

65. 2001 HCUP Nationwide Inpatient Sample (NIS) Comparison Report
    hcup-us.ahrq.gov/db/nation/nis/reports/2001niscomparisonrpt.jsp
    November 01, 2015 - Although the smaller sample size rendered the NHDS estimates less precise than the NIS estimates, the … Because of the limited sample size, valid estimates were not available for all breakdowns of the NHDS … We must emphasize that the NIS provides a large sample size that tends to yield estimates with much smaller … Because NIS estimates have greater precision – a result of the large sample size – it may be preferred … Where a comprehensive geographic representation is more important than a large sample size, and the question

66. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2007
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2007.jsp
    January 01, 2007 - The NIS’ large sample size enables analyses of rare conditions, such as congenital anomalies; uncommon … The sampling design consisted of a stratified, single-stage cluster sample. … Return to Introduction Hospital Sample Design Design Considerations The NIS is a stratified … This sample size was determined by AHRQ based on their experience with similar research databases. … While this approach was admittedly less efficient, the extremely large sample sizes yield reliable estimates

67. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2008
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2008.jsp
    January 01, 2008 - The NIS’ large sample size enables analyses of rare conditions, such as specific types of cancer; uncommon … The sampling design consisted of a stratified, single-stage cluster sample. … Return to Introduction Hospital Sample Design Design Considerations The NIS is a stratified … This sample size was determined by AHRQ based on their experience with similar research databases. … While this approach was admittedly less efficient, the extremely large sample sizes yield reliable estimates

68. Table 2: NIS and NHDS Comparisons by Region, 1999 (pdf file)
    hcup-us.ahrq.gov/reports/methods/1999NISComparisonReportFinal.pdf
    March 08, 2002 - Due to the limited sample size, valid estimates were not available for all breakdowns of the NHDS data … size of the NHDS yielding insufficient sample sizes to produce valid estimates. … In areas where there are no biases due to sampling, the NIS provides a large enough sample size to yield … Because NIS estimates have greater precision due to a large sample size, it might be the preferred database … Where a comprehensive geographic representation is more important than a large sample size, and the

69. 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 … estimates (encounter universe), tabulated in strata used in the sampling design. … • Examine the strata with deficient ratios or sample sizes. … Census region was considered as an essential stratum to include in the design. … The NASS sampling design consists of a stratified, single- stage cluster sample.

70. 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 … estimates (encounter universe), tabulated in strata used in the sampling design. … • Examine the strata with deficient ratios or sample sizes. … Census region was considered as an essential stratum to include in the design. … The NASS sampling design consists of a stratified, single- stage cluster sample.

71. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2006 (Version 1)
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2006.jsp
    January 01, 2006 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … Return to Introduction   SAMPLING DESIGN OF THE NEDS Similar to the design of the NIS, the NEDS … A sample size of 20 percent was based on previous experience with similar research databases. … Collapsed categories used for strata with small sample sizes: (8) Trauma center level I or II, (9) Trauma … Collapsed categories used for strata with small sample sizes: (8) Metropolitan (large and small), (9)

72. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2007
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2007v2.jsp
    November 01, 2015 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … Return to Introduction   SAMPLING DESIGN OF THE NEDS Similar to the design of the Nationwide … A sample size of 20 percent was based on previous experience with similar research databases. … sizes 8: Metropolitan (large and small) 9: Non-metropolitan (micropolitan and non-urban … sizes: (8) Trauma center level I or II, (9) Trauma center level I, II, or III.

73. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2006
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2006v2.jsp
    November 01, 2015 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … Return to Introduction   SAMPLING DESIGN OF THE NEDS Similar to the design of the NIS, the NEDS … A sample size of 20 percent was based on previous experience with similar research databases. … sizes 8: Metropolitan (large and small) 9: Non-metropolitan (micropolitan and non-urban … sizes: (8) Trauma center level I or II, (9) Trauma center level I, II, or III.

74. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2020
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2020.jsp
    January 01, 2020 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … 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 … A sample size of 20 percent was based on previous experience with similar research databases. … size and/or a coefficient of variation >30 percent.

75. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2008
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2008.jsp
    January 01, 2008 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … Return to Introduction   SAMPLING DESIGN OF THE NEDS Similar to the design of the Nationwide … A sample size of 20 percent was based on previous experience with similar research databases. … sizes 8: Metropolitan (large and small) 9: Non-metropolitan (micropolitan and non-urban … sizes: (8) Trauma center level I or II, (9) Trauma center level I, II, or III.

76. 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 … The tutorial will be updated in the future to directly address the NASS sampling design. … estimates ( encounter universe ), tabulated in strata used in the sampling design. … Examine the strata with deficient ratios or sample sizes. … The NASS sampling design consists of a stratified, single-stage cluster sample.

77. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2007 (Version 1)
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2007.jsp
    January 01, 2007 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … Return to Introduction   SAMPLING DESIGN OF THE NEDS Similar to the design of the Nationwide … A sample size of 20 percent was based on previous experience with similar research databases. … sizes 8: Metropolitan (large and small) 9: Non-metropolitan (micropolitan and non-urban … sizes: (8) Metropolitan (large and small), (9) Non-metropolitan (micropolitan and non-urban location

78. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2009
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2009.jsp
    January 01, 2009 - One of the most distinctive features of the NEDS is its large sample size, which allows for analysis … The HCUP Sampling Design tutorial is designed to help users learn how to account for sample design … A sample size of 20 percent was based on previous experience with similar research databases. … Collapsed categories used for strata with small sample sizes: (8) Trauma center level I or II, (9) Trauma … Collapsed categories used for strata with small sample sizes: (8) Metropolitan (large and small), (9)

79. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2010
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2010.jsp
    January 01, 2010 - The NIS' large sample size enables analyses of rare conditions, such as specific types of cancer; uncommon … The HCUP Sampling Design tutorial is designed to help users learn how to account for sample design … Return to Introduction Hospital Sample Design Design Considerations The NIS is a stratified … This sample size was determined by AHRQ based on their experience with similar research databases. … While this approach was admittedly less efficient, the extremely large sample sizes yield reliable estimates

80. INTRODUCTION TO THE HCUP NATIONWIDE INPATIENT SAMPLE (NIS), 2009
    hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2009.jsp
    January 01, 2009 - The NIS' large sample size enables analyses of rare conditions, such as specific types of cancer; uncommon … The HCUP Sampling Design tutorial is designed to help users learn how to account for sample design … Return to Introduction Hospital Sample Design Design Considerations The NIS is a stratified … This sample size was determined by AHRQ based on their experience with similar research databases. … While this approach was admittedly less efficient, the extremely large sample sizes yield reliable estimates