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Showing results for "design sample size".

101. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2015
     hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2015.jsp
     January 01, 2015 - claims data but that comprises as much as 30 percent of Medicare beneficiaries. 3 The NIS' large sample … size enables analyses of rare conditions, uncommon treatments, and special patient populations. … The new NIS retains a large sample size, which enables analyses of rare conditions, uncommon treatments … size. … This sample size was determined by AHRQ based on their experience with similar research databases.

102. 2017-01 (pdf file)
     hcup-us.ahrq.gov/reports/methods/2017-01.pdf
     January 01, 2017 - size in calculating standard errors for certain readmission outcomes that are not population totals … “Equivalent sample size” and “equivalent degrees of freedom” refinements for inference using survey … The standard approach treats stratum sample sizes 𝑛𝑛𝑠𝑠 as random variables. … As such, variance calculations should account for the dependencies; importantly, the effective sample … size will be smaller, because there is inherently less information in correlated (as opposed to uncorrelated

103. MAINTAIN AND EXPAND (pdf file)
     hcup-us.ahrq.gov/db/nation/kid/reports/KID_2000_Design_Report.pdf
     January 01, 2000 - Sample Design Design Considerations The overall design objective was to select a sample of pediatric … HCUP KID 2000 (1/29/03) 4 Design of the HCUP KID, 2000 Table 3. … of the HCUP KID, 2000 SAMPLE DESIGN Design Considerations The overall design objective was to … HCUP KID 2000 (1/29/03) 20 Design of the HCUP KID, 2000 HCUP KID 2000 (1/29/03) 21 Design of the … Introduction Sample Design Design Considerations Sampling Frame Sampling Procedure Discharge Weights

104. Introduction to the NIS (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2022.pdf
     November 01, 2024 - that comprises as much as 48 percent of eligible Medicare beneficiaries in 2022.1 The NIS' large sample … size enables analyses of rare conditions, uncommon treatments, and special patient populations. … • The new NIS retains a large sample size, which enables analyses of rare conditions, uncommon treatments … size. … This sample size was determined by AHRQ based on their experience with similar research databases.

105. Thermal Condition of Low Birth Weight Neonates Admitted to Level 2 or Higher Nurseries in the First 24 Hours of Life (pdf file)
     www.ahrq.gov/sites/default/files/wysiwyg/pqmp/measures/acute/chipra-119-fullreport.pdf
     May 01, 2018 - Sample Size: What is the typical sample size available for each unit at this level? … Sample Size: What is the typical sample size available for each unit at this level? … Sample Size: What is the typical sample size available for each unit at this level? … Sample Size: What is the typical sample size available for each unit at this level? … Designed and tested at this level; some strata may have small sample sizes.

106. 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 - Design of the HCUP KIDS' Inpatient Database (KID), 2003 … Design Considerations Changes to Sampling and Weighting Strategy Beginning with the 2000 KID … Sample Design Design Considerations The overall design objective was to select a sample of pediatric … Design Considerations The overall design objective was to select a sample of pediatric discharges … Return to Contents Internet Citation: 2003 KID Design Report.

107. Final Progress Report: The elderly and OTC labeling information: A randomized controlled experiment test (pdf file)
     www.ahrq.gov/sites/default/files/2024-01/sangasubana-report.pdf
     January 01, 2024 - Due to the very small sample size, only descriptive statistics were calculated for each variable. … Second, the sample size was very small, lacking power to conduct 12 any multivariate analyses. … However, the study’s sample size was too small to make any conclusions about how the elderly utilized … size to more than 10,000 subjects. … In order to maintain the same sample size, financial incentives need to be increased.

108. Calculating Variances Using the 1999 Nationwide Inpatient Sample (pdf file)
     hcup-us.ahrq.gov/reports/methods/2015-09.pdf
     January 01, 2015 - .................................................................................... 3 NIS Sample Design … For the NIS data years 2012 and later, the final sample design is as follows. … Although the NIS sample design is not a cluster sample per-se, the sample is stratified on hospital … Discharges were sampled within each stratum at the rate necessary to achieve a sample size equal to … "Equivalent sample size" and "equivalent degrees of freedom" refinements for inference using survey

109. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2012
     hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2012.jsp
     January 01, 2012 - The NIS' large sample size enables analyses of rare conditions, uncommon treatments, and special patient … The new NIS retains a large sample size, which enables analyses of rare conditions, uncommon treatments … This sample size was determined by AHRQ based on their experience with similar research databases. … new NIS design will be about twice as precise as the old design. … This is by design.

110. INTRODUCTION TO THE HCUP NATIONAL INPATIENT SAMPLE (NIS), 2013
     hcup-us.ahrq.gov/db/nation/nis/NIS_Introduction_2013.jsp
     January 01, 2013 - The NIS' large sample size enables analyses of rare conditions, uncommon treatments, and special patient … The new NIS retains a large sample size, which enables analyses of rare conditions, uncommon treatments … This sample size was determined by AHRQ based on their experience with similar research databases. … new NIS design will be about twice as precise as the old design. … This is by design.

111. Chapter-7 - Harm Due to Anticoagulants (pdf file)
     www.ahrq.gov/sites/default/files/wysiwyg/research/findings/making-healthcare-safer/mhs3/anticoagulants-1.pdf
     March 01, 2020 - sizes … sizes. … Author, Year Description of PSP Study Design; Sample Size; Patient Population Setting Outcomes: … Author, Year Description of Patient Safety Practice Study Design; Sample Size; Patient Population … Author, Year Description of Patient Safety Practice Study Design; Sample Size; Patient Population

112. Research Findings #4: Nursing Homes - Structure and Selected Characteristics, 1996
     meps.ahrq.gov/data_files/publications/rf4/rf4.shtml
     January 01, 1998 - e Sample size less than 50. … d Sample size less than 50. … g Sample size less than 50. … d Sample size less than 50. … To bring the sample size in line with the original design of approximately 800 facilities

113. HEALTHCARE COST AND UTILIZATION PROJECT — HCUP (pdf file)
     hcup-us.ahrq.gov/db/nation/nis/NISIntroduction2019.pdf
     September 01, 2021 - size enables analyses of rare conditions, uncommon treatments, and special patient populations. … • The new NIS retains a large sample size, which enables analyses of rare conditions, uncommon treatments … a stratum is under-represented in the sampling frame, it will be oversampled to achieve the target sample … size. … This sample size was determined by AHRQ based on their experience with similar research databases.

114. Microsoft Word - CaseforPOAIndicator_final_060806 _2_.doc (pdf file)
     hcup-us.ahrq.gov/reports/methods/2007_02.pdf
     January 01, 2007 - Year KID States Added to the Frame Number of KID States Number of KID Hospitals Sample Size … Detailed information on the KID design is available in the report, Design of the HCUP Kids’ Inpatient … Size Number of KID Discharges in the Universe 1997 AZ, CA, CO, CT, FL, GA, HI, IA, IL, KS, … Also, consistent with the increase in hospital sample size, the average discharge weight decreased by … be used, although the analyst might have to normalize the weights to sum to the sample size and provide

115. Text Messaging | Digital Healthcare Research
     digital.ahrq.gov/technology/text-messaging
     January 01, 2024 - and sample size considerations. … A flexible micro-randomized trial design and sample size considerations. … mobile application to increase physical activity among university students: Implications for future design … mobile application to increase physical activity among university students: Implications for future design … Engaging users in the design of an mHealth, text message-based intervention to increase physical activity

116. Research White Paper: A Framework To Facilitate the Use of Systematic Reviews and Meta-analyses in the Design of Primary Research Studies (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/primary-research-design_research.pdf
     January 01, 2012 - of further studies aside from power and sample size. … higher in hierarchy, sample sizes and power calculations used, and feasibility of using data to assist … with simulation for proposed study sample size or power calculations. 13 Step 4: Summarize … Does the proposed study have adequate sample size and power? … Evidence-based sample size calculations based upon updated meta-analysis.

117. Self-Measured Blood Pressure: Future Research Needs (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/measuring-blood-pressure-future_research.pdf
     August 01, 2012 - This would require smaller sample sizes than for trials with CVD outcomes as the effect sizes would … Our calculated total sample sizes for relative risk (in a two-arm RCT with a 1:1 ratio between arms, … Sample size for a randomized controlled trial for a composite CVD outcome Total sample size for an … To definitively examine treatment effects for subgroups would require even larger sample sizes than … Observational Studies Value of Study Design Cohort studies with large sample sizes and diverse populations

118. HCUP Methods Series Calculating National Inpatient Sample (NIS) Variances for Data Years 2012 and Later
     hcup-us.ahrq.gov/reports/methods/2015_09.jsp
     January 01, 2015 - Top NIS Sample Design For the NIS data years 2012 and later, the final sample design is as follows … Details about the present NIS sample design, including the rationale for changes from the previous NIS … Although the NIS sample design is not a cluster sample per-se, the sample is stratified on hospital … Discharges were sampled within each stratum at the rate necessary to achieve a sample size equal to 20 … "Equivalent sample size" and "equivalent degrees of freedom" refinements for inference using survey weights

119. Medical Expenditure Panel Survey Insurance Component Sample Design and Data Collection Process
     meps.ahrq.gov/survey_comp/ic_data_collection.jsp
     November 01, 2009 - Medical Expenditure Panel Survey Insurance Component Sample Design and Data Collection Process … XL   MEPS-IC Sample Design … Suggested Citation: MEPS-IC Sample Design and Data

120. Medical Expenditure Panel Survey Insurance Component Sample Design and Data Collection Process
     meps.ahrq.gov/mepsweb/survey_comp/ic_data_collection.jsp
     November 01, 2009 - Medical Expenditure Panel Survey Insurance Component Sample Design and Data Collection Process … XL   MEPS-IC Sample Design … Suggested Citation: MEPS-IC Sample Design and Data