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Total Results: 712 records

Showing results for "design sample size".

221. Microsoft Word - deliverable45_01.doc (pdf file)
     hcup-us.ahrq.gov/reports/methods/2008_01.pdf
     January 01, 2008 - Where a comprehensive geographic representation is more important than a large sample size, and the … The NIS provides a large sample size that tends to yield estimates with much smaller standard errors … (a) Because of very small sample size, the NHDS estimate and standard error were unreliable and not … (a) Because of very small sample size, the NHDS estimate and standard error were unreliable and not … (a) Because of very small sample size, the NHDS estimate and standard error were unreliable and not

222. Diabetes-Related Inpatient Stays, 2018 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb279-Diabetes-Inpatient-Stays-2018.pdf
     January 01, 2018 - Because of the large sample size of the NIS data, small differences can be statistically significant … The unweighted sample size for the 2018 NIS is 7,105,498 (weighted, this represents 35,527,481 inpatient … For a detailed description of HCUP and more information on the design of the National Inpatient Sample

223. Overview of Hospital Stays for Children in the United States, 2012 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb187-Hospital-Stays-Children-2012.pdf
     January 01, 2012 - The KID's large sample size enables analyses of rare conditions (such as congenital anomalies) and uncommon … The redesign incorporates two critical changes: • Revisions to the sample design—the NIS is now … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … Hospitals, 2011 For a detailed description of HCUP and more information on the design of the Kids

224. Checklist for Working with the NRD
     hcup-us.ahrq.gov/db/nation/nrd/nrdchecklist.jsp
     November 01, 2024 - Return to top Research Design ⬜ Learn how to account for the NRD sampling design. … Accounting for the sampling design is critical for accurate analyses. … For more information, review the "Sampling Design of the NRD" section of the Introduction to the NRD … The study design should account for differences in data element availability across data years. … ⬜ Account for the design of the NRD when calculating standard errors.

225. PowerPoint Presentation (pdf file)
     hcup-us.ahrq.gov/news/exhibit_booth/NASSBrochure_031220.pdf
     March 18, 2020 - PowerPoint Presentation What is the NASS? The Nationwide Ambulatory Surgery Sample (NASS) is part of the family of databases and software tools developed for the Healthcare Cost and Utilization Project (HCUP). The NASS produces national estimates of major ambulatory surgery encounters performed in hospital-owned faci…

226. HCUP Fact Sheet
     hcup-us.ahrq.gov/news/exhibit_booth/hcup_fact_sheet.jsp
     April 01, 2022 - The KID's large sample size enables analyses of both common and rare conditions such as congenital

227. Mental Health Disorders Among Delivery Inpatient Stays by Patient Race and Ethnicity, 2020 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb302-Deliveries-Mental-Health-Disorders-Race-2020.pdf
     January 01, 2020 - Because of the large sample size of the NIS data, small differences can be statistically significant … disorders (MBD001) and somatic disorders (MBD011); however, these two CCSR categories involved very small sample … sizes. 11 Table 4. … The unweighted sample size for the 2020 NIS is 6,471,165 (weighted, this represents 32,355,827 inpatient … For a detailed description of HCUP and more information on the design of the National Inpatient Sample

228. HCUP-US KID Overview
     hcup-us.ahrq.gov/kidoverview.jsp
     September 01, 2025 - The unique design of the KID enables national and regional studies of common and rare pediatric conditions … Key features of the most recent KID database year (2022) include: A large sample size, which enables

229. Statistical Brief #2: Reasons for Being Admitted to the Hospital through the Emergency Department, 2003 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb2.pdf
     February 01, 2006 - References For a detailed description of HCUP and more information on the design of the NIS and methods … Effective Clinical Practice 5(3):143-51, 2002 Design of the HCUP Nationwide Inpatient Sample, 2003

230. Statistical Brief #1: Hospital Admissions That Began in the Emergency Department, 2003 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb1.pdf
     February 01, 2006 - References For a detailed description of HCUP and more information on the design of the NIS and methods … Effective Clinical Practice 5(3):143-51, 2002 Design of the HCUP Nationwide Inpatient Sample, 2003

231. Statistical Brief #129: Rates of Obstetric Trauma, 2009 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb129.pdf
     April 01, 2012 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

232. Statistical Brief #32: Hospital Admissions That Began in the Emergency Department for Children and Adolescents, 2004 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb32.pdf
     June 01, 2007 - For More Information For a detailed description of HCUP and more information on the design of the … Design of the HCUP Nationwide Inpatient Sample, 2004. Online. August 8, 2006. U.S.

233. THE HCUP NATIONWIDE READMISSIONS DATABASE (NRD), 2013
     hcup-us.ahrq.gov/db/nation/nrd/NRD_Introduction_2013.jsp
     January 01, 2013 - users: The Nationwide Readmissions Database Tutorial provides a description of the NRD database design … Other tutorials about the design or use of other HCUP databases also are available. … Return to Introduction   SAMPLING DESIGN OF THE NRD The NRD was built to facilitate analyses … Variance estimates must take into account both the sampling design and the form of the statistic. … perform calculations for numerous statistics arising from the stratified, single-stage cluster sampling design

234. Kids' Inpatient Database (KID)
     hcup-us.ahrq.gov/news/exhibit_booth/kid_brochure.jsp
     May 01, 2018 - Its large sample size is ideal for developing national and regional estimates. … The unique design of the KID enables national and regional studies of common and rare pediatric conditions

235. Inpatient Stays and Emergency Department Visits Involving Traumatic Brain Injury, 2017 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb255-Traumatic-Brain-Injury-Hospitalizations-ED-Visits-2017.pdf
     January 01, 2017 - Because of the large sample size of the HCUP NIS, NEDS, and NRD small differences can be statistically … The unweighted sample size for the 2017 NIS is 7,159,694 (weighted, this represents 35,798,453 inpatient … The unweighted sample size for the 2017 NEDS is 33,506,645 (weighted, this represents 144,814,803 ED … The unweighted sample size for the 2017 NRD is 17,978,754 (weighted, this represents 35,790,513 inpatient … For a detailed description of HCUP and more information on the design of the National Inpatient Sample

236. Statistical Brief #23
     hcup-us.ahrq.gov/reports/statbriefs/sb23.jsp
     December 23, 2007 - References For a detailed description of HCUP and more information on the design of the NIS and methods … Design of the HCUP Nationwide Inpatient Sample, 2004. Online. August 8, 2006. U.S.

237. Statistical Brief #32
     hcup-us.ahrq.gov/reports/statbriefs/sb32.jsp
     June 01, 2007 - For More Information For a detailed description of HCUP and more information on the design of the … Design of the HCUP Nationwide Inpatient Sample, 2004. Online. August 8, 2006. U.S.

238. Geographic Variation in Inpatient Stays for Five Leading Mental Disorders, 2016–2018 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb288-Mental-Disorder-Hospitalizations-by-Region-2016-2018.pdf
     January 01, 2018 - Because of the large sample size of the NIS and SID data, small differences can be statistically significant … The unweighted sample size for the 2018 NIS is 7,105,498 (weighted, this represents 35,527,481 inpatient … The unweighted sample size for the 2016 NIS is 7,135,090 (weighted, this represents 35,675,421 inpatient … For a detailed description of HCUP and more information on the design of the National Inpatient Sample

239. Racial and Ethnic Differences in Emergency Department Visits Related to Substance Use Disorders, 2019 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb301-ED-Substance-Use-Disorders-Race-2019.pdf
     January 01, 2019 - s ability to prevent human suffering and financial loss during a disaster).5 Because of the large sample … size of the NEDS data, small differences can be statistically significant. … The unweighted sample size for the 2019 NEDS is 33,147,251 (weighted, this represents 143,432,284 ED … For a detailed description of HCUP and more information on the design of the Nationwide Emergency Department

240. Trends in Observed Adult Inpatient Mortality for High-Volume Conditions, 2002–2012 (pdf file)
     hcup-us.ahrq.gov/reports/statbriefs/sb194-Inpatient-Mortality-High-Volume-Conditions.pdf
     November 01, 2014 - We did not use the 2012 NIS because the sampling design and universe definition was revised. … The redesign incorporates two critical changes: • Revisions to the sample design—starting with 2012 … by reducing sampling error: for many estimates, confidence intervals under the new design are about … half the length of confidence intervals under the previous design. … Hospitals, 2011 For a detailed description of HCUP and more information on the design of the National