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361. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2016
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2016.jsp
     January 01, 2016 - (Archive Utility) will produce an error message warning of incorrect password and/or file or folder errors … The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.

362. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2017
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2017.jsp
     January 01, 2017 - (Archive Utility) will produce an error message warning of incorrect password and/or file or folder errors … The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.

363. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2014
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2014.jsp
     January 01, 2014 - (Archive Utility) will produce an error message warning of incorrect password and/or file or folder errors … The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.

364. THE HCUP NATIONWIDE AMBULATORY SURGERY SAMPLE (NASS) 2019
     hcup-us.ahrq.gov/db/nation/nass/NASS_Introduction_2019.jsp
     January 01, 2019 - Archive Utility) will produce an error message warning of an incorrect password and/or file or folder errors … The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.

365. Design of the HCUP KIDS' Inpatient Database (KID), 2003
     hcup-us.ahrq.gov/db/nation/kid/reports/KID_design_rpt_2003.jsp
     January 01, 2003 - To avoid rounding errors in the weights calculation, the actual sampling rate for a discharge type (uncomplicated … statistical analysis programs have been developed to specifically calculate statistics and their standard errors … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals can then be calculated from the validation data.

366. NIS Database Documentation - Corrections
     hcup-us.ahrq.gov/db/nation/nis/corrections_2011.jsp
     January 01, 2011 - NIS Database Documentation - Corrections An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email Upda…

367. Matching patients across institutions without definitive patient identifiers (pdf file)
     hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/mn22.pdf
     November 20, 2012 - unique identification number was found to be insufficient due to missing values and typographical errors

368. Microsoft Word - Addendum to MS-2008-06_fnl 072009.doc (pdf file)
     hcup-us.ahrq.gov/reports/methods/2008_06_Addendum_to_MS-2008-06_fnl_072009.pdf
     January 01, 2008 - statistical issues included age-gender adjustment for the PQIs and PDIs and derivation of standard errors

369. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2009
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2009.jsp
     January 01, 2009 - The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … Because the NEDS is a stratified sample, proper statistical techniques must be used to calculate standard errors … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.

370. Neds 2022 Core Maskedstats (pdf file)
     hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2022_Core_MaskedStats.PDF
     January 01, 2022 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NEDS 2022 Core File 15:48 Tuesday, November 5, 2024 1 Means of Continuous Data Elements Variable / Label N N Miss Min Max Mean Std Dev AGE : Age in years at adm…

371. Neds 2021 Core Maskedstats (pdf file)
     hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2021_Core_MaskedStats.PDF
     January 01, 2021 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NEDS 2021 Core File 18:25 Friday, March 1, 2024 1 Means of Continuous Data Elements Variable / Label N N Miss Min Max Mean Std Dev AGE : Age in years at admissi…

372. Neds 2019 Core Maskedstats Weighted (pdf file)
     hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2019_Core_MaskedStats_Weighted.PDF
     January 01, 2019 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Weighted Summary Statistics Report: NEDS 2019 Core File Means of Continuous Data Elements Data Summary Number of Strata 141 Number of Clusters 989 Number of Observations 33,147,251 Sum o…

373. Neds 2015 Core Maskedstats (pdf file)
     hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2015_Core_MaskedStats.PDF
     January 01, 2015 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NEDS 2015 Core File Means of Continuous Data Elements please refer to the section on Description of Data Elements. For more information about the coding of HCUP da…

374. Application Kit for Submitting HCUP DUAs for Users of Previously Purchased HCUP Databases (pdf file)
     hcup-us.ahrq.gov/pdf/HCUP-NonPurchaser_SubmitDUA.pdf
     May 31, 2025 - AHRQ only for the purpose of enforcement of this Agreement and for notification in the event data errors … AHRQ only for the purpose of enforcement of this Agreement and for notification in the event data errors

375. MAINTAIN AND EXPAND (pdf file)
     hcup-us.ahrq.gov/reports/methods/1998ChangesintheNISRedesignFinal.pdf
     January 18, 2002 - However, MedPAR and NHDS estimates also have reporting or sampling errors associated with them. … Version 8, have been developed that specifically calculate finite sample statistics and their standard errors … Point estimates, associated standard errors, confidence intervals, and design effects for the full population … estimates of means, totals, proportions, percentages, geometric means, quantiles, and their standard errors … • RATIO: Computes estimates and standard errors of generalized ratios of the form (Summation y)

376. Maskedstats Nrd 2015 Core (pdf file)
     hcup-us.ahrq.gov/db/nation/nrd/stats/MaskedStats_NRD_2015_Core.PDF
     January 01, 2015 - please refer to the section on Description of Data Elements. For more information about the coding of HCUP data elements, HCUP Summary Statistics Report: NRD 2015 Core File 07:12 Tuesday, October 31, 2017 1 Means of Continuous Data Elements please refer to the section on Description of Data Elements. For more infor…

377. Nationwide Data Use Agreement
     hcup-us.ahrq.gov/team/NationwideDUA.jsp
     April 01, 2024 - the purpose of enforcement of this Agreement and for notification in the event data errors

378. Matching Patients across Institutions without Definitive Patient Identifiers
     hcup-us.ahrq.gov/datainnovations/clinicalcontentenhancementtoolkit/mn22.jsp
     September 01, 2014 - single unique identification number was found to be insufficient due to missing values and typographical errors

379. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2011
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2011.jsp
     January 01, 2011 - The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … Because the NEDS is a stratified sample, proper statistical techniques must be used to calculate standard errors … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.

380. THE HCUP NATIONWIDE EMERGENCY DEPARTMENT SAMPLE (NEDS), 2010
     hcup-us.ahrq.gov/db/nation/neds/NEDS_Introduction_2010.jsp
     January 01, 2010 - The Calculating Standard Errors tutorial shows how to accurately determine the precision of the estimates … Users will learn two methods for calculating standard errors for estimates produced from the HCUP nationwide … Because the NEDS is a stratified sample, proper statistical techniques must be used to calculate standard errors … In addition to these subroutines, standard errors can be estimated by validation and cross-validation … Standard errors and confidence intervals then can be calculated from the validation data.