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41. Healthcare Cost and Utilization Project (HCUP) KID Notes
    hcup-us.ahrq.gov/db/vars/prdayn/kidnote.jsp
    September 01, 2008 - Beginning in 2000, procedure dates were provided by the data source and used to calculate day of procedure … These fields are used to calculate PRDAYn. … Kansas Beginning with 2005, Kansas provided procedure dates, which were used to calculate day of procedure

42. INTRODUCTION TO THE HCUP KIDS' INPATIENT DATABASE (KID), 2019
    hcup-us.ahrq.gov/db/nation/kid/kid_2019_introduction.jsp
    January 01, 2012 - Discharge-level weights to calculate national estimates. … Examples of the use of SAS, SUDAAN, and STATA to calculate KID variances are presented in the special … The KID database includes a Hospital file with data elements required to calculate finite population … Therefore, researchers will not be able to calculate hospital-specific outcomes with certainty. … Beginning with the 2003 KID, use DISCWT to calculate nationwide estimates for all analyses.

43. HCUP Nationwide Inpatient Sample Design Report 2004
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2004_Design_Report.jsp
    January 01, 2004 - Variance Calculations It may be important for researchers to calculate a measure of precision for … Examples of the use of SAS, SUDAAN, and STATA to calculate variances in the NIS are presented in the … Beginning in 1998, we calculate discharges as the sum of hospital admissions (AHA data element ADMH) … Variance Calculations It may be important for researchers to calculate a measure of precision for … Several computer programs are listed below that calculate statistics and their variances from sample

44. HCUP Nationwide Inpatient Sample Design Report 2005
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2005_Design_Report.jsp
    January 01, 2005 - Examples of the use of SAS, SUDAAN, and Stata to calculate variances in the NIS are presented in the … Beginning in 1998, we calculate discharges as the sum of hospital admissions (AHA data element ADMH) … Variance Calculations It may be important for researchers to calculate a measure of precision for … Several computer programs are listed below that calculate statistics and their variances from sample … Examples of the use of SAS, SUDAAN, and STATA to calculate NIS variances are presented in the special

45. HCUP Nationwide Inpatient Sample Design Report 1999
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_1999_Design_Report.jsp
    January 01, 1999 - DATA ANALYSIS Variance Calculations It may be important for researchers to calculate a measure … Several computer programs are listed below that calculate statistics and their variances from sample … However, it may be desirable to calculate variances using formulas specifically developed for some statistics … An example of using SUDAAN to calculate variances in the NIS is presented in the report: Calculating … The NIS database includes a Hospital Weights file with variables required by these programs to calculate

46. Checklist for Working with the NEDS
    hcup-us.ahrq.gov/db/nation/neds/nedschecklist.jsp
    November 01, 2024 - To learn how to calculate standard errors, view the HCUP Calculating Standard Errors On-line Tutorial … ⬜ Calculate rates of ED visits per population when you need to control for differences in … There are several sources of population data that can be used with the HCUP databases to calculate rates

47. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2002_Design_Report.pdf
    January 01, 2002 - Variance Calculations It may be important for researchers to calculate a measure of precision for … Examples of the use of SAS, SUDAAN, and STATA to calculate variances in the NIS are presented in the … Beginning in 1998, we calculate discharges as the sum of hospital admissions (AHA data element ADMH) … Variance Calculations It may be important for researchers to calculate a measure of precision for … Several computer programs are listed below that calculate statistics and their variances from sample

48. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
    hcup-us.ahrq.gov/db/nation/nis/reports/NIS_2001_Design_Report.pdf
    January 01, 2001 - Variance Calculations It may be important for researchers to calculate a measure of precision for … Examples of the use of SAS, SUDAAN and STATA to calculate variances in the NIS are presented in the … Beginning in 1998, we calculate discharges as the sum of hospital admissions (AHA data element ADMH) … Several computer programs are listed below that calculate statistics and their variances from sample … Examples of the use of SAS, SUDAAN and STATA to calculate variances in the NIS are presented in the

49. Kid 1997 Comparison (pdf file)
    hcup-us.ahrq.gov/db/nation/kid/reports/KID_1997_Comparison.pdf
    January 01, 1997 - However, due to the small sample of children in the NHDS, it was not possible to calculate valid estimates … It was not possible to calculate valid estimates of standard error for nearly half of the average length-of … weights and accounted for the sample design using the SUDAAN microcomputer statistical software to calculate … significance test was not performed because a valid NHDS standard error was not available. b Unable to calculate … significance test was not performed because a valid NHDS standard error was not available. b Unable to calculate

50. Summary (pdf file)
    hcup-us.ahrq.gov/reports/methods/KIDComp1997Final.pdf
    March 16, 2001 - However, due to the small sample of children in the NHDS, it was not possible to calculate valid estimates … It was not possible to calculate valid estimates of standard error for nearly half of the average length-of … weights and accounted for the sample design using the SUDAAN microcomputer statistical software to calculate … significance test was not performed because a valid NHDS standard error was not available. b Unable to calculate … significance test was not performed because a valid NHDS standard error was not available. b Unable to calculate

51. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2007 (Version 1)
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2007.jsp
    January 01, 2007 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2007 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

52. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2008
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2008.jsp
    January 01, 2008 - Weights are provided to calculate national estimates pertaining to almost 125 million ED visits in 2008 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

53. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2007
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2007v2.jsp
    November 01, 2015 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2007 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

54. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2006
    hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2006v2.jsp
    November 01, 2015 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2006 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

55. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
    hcup-us.ahrq.gov/db/nation/neds/NEDS_2006v2_IntroductionRevised.pdf
    November 01, 2015 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2006 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

56. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
    hcup-us.ahrq.gov/db/nation/neds/NEDS2007v2IntroductionRevised.pdf
    November 01, 2015 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2007 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

57. Microsoft Word - NEDS_2006_Introduction v4.doc (pdf file)
    hcup-us.ahrq.gov/db/nation/neds/NEDS_2006_Introductionv4.pdf
    January 01, 2006 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2006 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

58. Microsoft Word - NEDS_2007_Introduction v5.doc (pdf file)
    hcup-us.ahrq.gov/db/nation/neds/NEDS_2007_Introduction_v5.pdf
    January 01, 2007 - Weights are provided to calculate national estimates pertaining to over 120 million ED visits in 2007 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

59. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
    hcup-us.ahrq.gov/db/nation/neds/NEDS2008Introductionv3.pdf
    November 01, 2015 - Weights are provided to calculate national estimates pertaining to almost 125 million ED visits in 2008 … Variance Calculations It may be important for researchers to calculate a measure of precision for … To accurately calculate variances from the NEDS, appropriate statistical software and techniques must … Several computer programs that calculate statistics and their variances from sample survey data are … However, it may be desirable to calculate variances using formulas specifically developed for certain

60. Healthcare Cost and Utilization Project (HCUP) NASS Notes
    hcup-us.ahrq.gov/db/vars/age/nassnote.jsp
    August 01, 2019 - If the data source does not provide the necessary dates to calculate age or the reported age at admission