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281. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2019
     hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2019.jsp
     January 01, 2019 - sampling strategy produces more precise estimates than the previous NIS design by reducing sampling error … The self-weighting design of the new NIS reduces the margin of error for estimates and delivers more … For national-level estimates, the 2012 NIS systematic design reduces the margin of error by 42 to 48 … The systematic design also consistently reduced the margin of error for estimates at the DRG level. … Unbiased estimates of error variance are then obtained by comparing the actual values to the predicted

282. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2016
     hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2016.jsp
     January 01, 2016 - sampling strategy produces more precise estimates than the previous NIS design by reducing sampling error … The self-weighting design of the new NIS reduces the margin of error for estimates and delivers more … For national-level estimates, the 2012 NIS systematic design reduces the margin of error by 42 to 48 … The systematic design also consistently reduced the margin of error for estimates at the DRG level. … Unbiased estimates of error variance are then obtained by comparing the actual values to the predicted

283. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2019.pdf
     September 01, 2021 - sampling strategy produces more precise estimates than the previous NIS design by reducing sampling error … • The self-weighting design of the new NIS reduces the margin of error for estimates and delivers … For national-level estimates, the 2012 NIS systematic design reduces the margin of error by 42 to 48 … The systematic design also consistently reduced the margin of error for estimates at the DRG level. … Unbiased estimates of error variance are then obtained by comparing the actual values to the predicted

284. Ms2022-01-Nhqdrmethodsreport (pdf file)
     hcup-us.ahrq.gov/reports/methods/MS2022-01-NHQDRMethodsReport.pdf
     October 28, 2022 - Standard error calculations for the rates were based on the HCUP report entitled Inferences with HCUP … For population counts based on Claritas data, there is no sampling error. … Standard Error Estimates for Weighted Discharge Rates per 100,000 Population Using the 2017 Claritas … Consequently, the standard error of the rate R was calculated as: SER =100,000 * SES / N. … We multiplied this standard error by 1,000. 2.

285. Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2021 National Healthcare Quality and Disparities Report (NHQDR) (pdf file)
     hcup-us.ahrq.gov/reports/methods/MS2021-03-NHQDRMethodsReport.pdf
     December 09, 2021 - QI estimates were included in the NHQDR if they reached a threshold defined by a relative standard error … For population counts based on Claritas data, there is no sampling error. … Standard Error Estimates for Weighted Discharge Rates per 100,000 Population Using the 2017 Claritas … Consequently, the standard error of the rate R was calculated as: SER =100,000 * SES / N. … We multiplied this standard error by 1,000. 2.

286. 2019NHQDRMethodsReport (pdf file)
     hcup-us.ahrq.gov/reports/methods/2020-04.pdf
     January 01, 2020 - QI estimates were included in the NHQDR if they reached a threshold defined by a relative standard error … For population counts based on Claritas data, there is no sampling error. … Standard Error Estimates for Weighted Discharge Rates per 100,000 Population Using the 2017 Claritas … Consequently, the standard error of the rate R was calculated as: SER =100,000 * SES / N. … We multiplied this standard error by 1,000. 2.

287. Kid 1997 Summarystats Core (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_1997_SummaryStats_CORE.PDF
     January 01, 1997 - Kurtosis -0.8575983 Uncorrected SS 133592753 Corrected SS 85497649.6 Coeff Variation 133.32966 Std Error … Kurtosis 2182.23168 Uncorrected SS 212799467 Corrected SS 177588390 Coeff Variation 224.578275 Std Error … Kurtosis 876219.5 Uncorrected SS 1511961466 Corrected SS 1476106868 Coeff Variation 641.632838 Std Error … Kurtosis 3648.56504 Uncorrected SS 2.19332E15 Corrected SS 2.03082E15 Coeff Variation 353.513227 Std Error … Kurtosis 14026.8582 Uncorrected SS 3.39752E15 Corrected SS 3.23071E15 Coeff Variation 440.090166 Std Error

288. Exhibit 2.4 Average Length of Stay and Average Charges
     hcup-us.ahrq.gov/reports/factsandfigures/figures/2005/2005_2_4.jsp
     January 01, 2005 - *Statistic has a relative standard error (standard error/weighted estimate) greater than 0.30 and is

289. Methods – Applying HCUP Quality Indicators (pdf file)
     hcup-us.ahrq.gov/reports/methods/2019-01.pdf
     January 01, 2019 - QI estimates were included in the QDR if they reached a threshold defined by a relative standard error … For population counts based on Claritas data, there is no sampling error. … Standard Error Estimates for Weighted Discharge Rates per 100,000 Population Using the 2016 Claritas … Consequently, the standard error of the rate R was calculated as: SER =100,000 * SES / N. … We multiplied this standard error by 1,000. 2.

290. Methods Applying AHRQ Quality Indicators to Healthcare Cost and Utilization Project (HCUP) Data for the 2024 National Healthcare Quality and Disparities Report (NHQDR) (pdf file)
     hcup-us.ahrq.gov/reports/methods/MS2024-01-NHQDRMethodsReport.pdf
     November 25, 2024 - Standard error calculations for the rates were based on the HCUP report entitled Inferences with HCUP … For population counts based on Claritas data, there is no sampling error. … To obtain the estimate of S and its standard error, SES, we followed instructions in the SID Variance … Consequently, the standard error of the rate R was calculated as: SER =100,000 * SES / N . (2.2 … We multiplied this standard error by 1,000. 2.

291. Exhibit 2.11. Influenza
     hcup-us.ahrq.gov/reports/factsandfigures/figures/2005/2005_2_11a.jsp
     January 01, 2005 - Exhibit 2.11. Influenza Exhibit 2.11. Influenza Characteristics of All Hospital Stays and Stays with a Principal Diagnosis of Influenza, 2005 Characteristics All Hospital Stays Hospital Stays for Influenza Discharges Number of discharges in thousands 39,163.8 50.0 Number of…

292. Exhibit 5.1. Uninsured Inpatient Hospital Stays: Admission Source and Discharge Status
     hcup-us.ahrq.gov/reports/factsandfigures/figures/2005/2005_5_1B.jsp
     January 01, 2005 - Exhibit 5.1. Uninsured Inpatient Hospital Stays: Admission Source and Discharge Status Exhibit 5.1. Uninsured Inpatient Hospital Stays: Admission Source and Discharge Status Share of Uninsured and Insured Stays by Discharges Status, 2005 Admission Source and Discharge Status Total-All Discharges…

293. Statistical Brief #67: Trends in Uninsured Hospital Stays, 1997-2006 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb67.pdf
     February 01, 2009 - trauma due to childbirth 1.8% 1.9% 2.1% * Statistics based on estimates with a relative standard error … (standard error/weighted estimate) greater than 0.30 or with standard error = 0 in the nationwide statistics

294. Exhibit 3.4. Cardiovascular Procedures
     hcup-us.ahrq.gov/reports/factsandfigures/figures/2005/2005_3_4.jsp
     January 01, 2005 - Exhibit 3.4. Cardiovascular Procedures Number of Inpatient Hospital Cardiovascular Procedures, 1993-2005 Year All-listed Procedures CABG (coronary artery bypass graft)* PTCA (percutaneous transluminal coronary angioplasty)** Endarterectomy*** Abdominal Aortic Aneurysm Repair 1993 …

295. Kid 2012 Maskedstats Core Weighted (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/tools/stats/KID_2012_MaskedStats_Core_Weighted.PDF
     January 01, 2012 - 2 Means of Continuous Data Elements Statistics Variable Label N N Miss Minimum Maximum Mean Std Error … 3 Means of Continuous Data Elements Statistics Variable Label N N Miss Minimum Maximum Mean Std Error … 4 Means of Continuous Data Elements Statistics Variable Label N N Miss Minimum Maximum Mean Std Error … 5 Means of Continuous Data Elements Statistics Variable Label N N Miss Minimum Maximum Mean Std Error … 6 Means of Continuous Data Elements Statistics Variable Label N N Miss Minimum Maximum Mean Std Error

296. Exhibit 3.6. Orthopedic Procedures
     hcup-us.ahrq.gov/reports/factsandfigures/figures/2005/2005_3_6B.jsp
     January 01, 2005 - Exhibit 3.6. Orthopedic Procedures Exhibit 3.6. Orthopedic Procedures Growth in Discharges with Procedures on the Musculoskeletal System, 1993-2005 CCS Procedure Category and Name (All-listed Procedures) Number of Discharges with a Procedure Percent Growth in Discharges with a Procedure from 199…

297. Neds 2017 Core Maskedstats Weighted (pdf file)
     hcup-us.ahrq.gov/db/nation/neds/stats/NEDS_2017_Core_MaskedStats_Weighted.PDF
     January 01, 2017 - 23, 2019 2 Means of Continuous Data Elements Statistics Variable Label N N Miss Min Max Mean Std Error … 23, 2019 3 Means of Continuous Data Elements Statistics Variable Label N N Miss Min Max Mean Std Error

298. Exhibit 2.10. Injuries
     hcup-us.ahrq.gov/reports/factsandfigures/figures/2005/2005_2_10b.jsp
     January 01, 2005 - Exhibit 2.10. Injuries Exhibit 2.10. Injuries Number of Discharges and Percent Change in Discharges with a Principal Diagnosis of Injuries, 1997-2005 CCS Principal Diagnosis Category and Name Discharges in Thousands Standard Errors in Thousands Percent Change 1997 2005 1997 2005 …

299. Hospital Inpatient Statistics, 1996
     hcup-us.ahrq.gov/reports/natstats/his96/table1c.htm
     January 01, 1996 - Estimates presented here have a relative error of less than 30%.

300. NEDS Related Reports
     hcup-us.ahrq.gov/db/nation/neds/nedsrelatedreports.jsp
     June 01, 2024 - NEDS Related Reports An official website of the Department of Health & Human Services Search All AHRQ Websites Careers Contact Us Espanol FAQs Email Updates …