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Showing results for "design sample size".

  1. celiac-disease-protocol-140612 (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/pdf/celiac-disease_research-protocol.pdf
    June 12, 2014 - Inclusion / Exclusion Criteria Study design For KQ1a, we will include high quality systematic reviews … Study-level data abstracted will include: date study conducted; sample size; subjects’ demographic characteristics … (Yes/No/Unclear) Was a case-control design avoided? … Was an a priori study design provided? 02. … Studies will be weighted by sample size.

  2. Guide for Developing a Community-Based Patient Safety Advisory Council (pdf file)

    www.ahrq.gov/sites/default/files/wysiwyg/research/findings/final-reports/advisorycouncil/advisorycouncil.pdf
    April 01, 2008 - Including patients in the design and implementation of initiatives to improve patient safety has given

  3. Methods Guide for Medical Test Reviews Chapter 12 (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-prognostic_methods.pdf
    July 01, 2012 - Quality Previous reviews of prognostic indicators have demonstrated substantial variation in study design … evaluation of the accuracy of a biomarker used for classification or prediction: standards for study design … Comparing the predictive values of diagnostic tests: sample size and analysis for paired study designs

  4. Statistical Brief #91: Diagnostic Groups with Rapidly Increasing Costs, by Payer, 2001-2007 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb91.pdf
    June 01, 2010 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

  5. Statistical Brief #83: Potentially Preventable Hospitalization Rates Declined for Older Adults, 2003-2007 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb83.pdf
    December 01, 2009 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

  6. S29 (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/s29.pdf
    October 01, 2007 - Leaders’ views would be influenced by variations in study design and implementation. … Although CRTs generally require larger sample sizes than RCTs to achieve statistical power, the cost … not attend to critical analytic issues.19,20 Statistical guides need to be developed to facilitate sample … size calculation for regimens with various degrees of differ- ence in outcome, taking into account the … Design and Analysis of Cluster Randomization Trials in Health Research.

  7. Evidence Summary: Vision in Children Ages 6 Months to 5 Years: Screening | United States Preventive Services Taskforce

    www.uspreventiveservicestaskforce.org/uspstf/document/evidence-summary/vision-in-children-ages-6-months-to-5-years-screening
    September 05, 2017 - Snellen chart) and 0.15 logMAR (between 1 and 2 lines). 40-42 Large treatment studies have calculated sample … size requirements based on the ability to detect a change of at least 0.1 logMAR between treatment groups … Sample sizes ranged from 63 75 to 4040. 70 , 91 About one-third of the studies included participants … Improving on ETDRS acuities: design and results for a computerised thresholding device.  … Screening Intervention vs Control Sample Size Age Female, No. (%) b Non-White, No (%) Main

  8. Disposition of Comments Report for Oral Contraceptive Use for the Primary Prevention of Ovarian Cancer (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/related_files/cancer-ovarian-contraceptives_disposition-comments.pdf
    June 07, 2013 - Exploring potential sample size and effect sizes from abstracts in the non-English literature (or translating … size criterion … sizes (Ns) can be very misleading. … Sample sizes for the specific studies are included in the study characteristic tables. … It would be helpful to mention the sample size needed for a BRCA1+ population, which would be smaller

  9. Improving Patient Access and Patient-Clinician Continuity through Panel Redesign - Final Report (pdf file)

    digital.ahrq.gov/sites/default/files/docs/publication/r03hs018795-balasubramanian-final-report-2012.pdf
    January 01, 2012 - because they enhance a practice's understanding of its population and disease trends, and allow it to design … The current panel design is given by the nij values. … shows how many patients from each comorbidity count category had to be changed to achieve improved design

  10. Final Progress Report: Shared Decision Making in Vulnerable Populations (pdf file)

    www.ahrq.gov/sites/default/files/2024-07/mitchell-report.pdf
    January 01, 2024 - Final Progress Report: Shared Decision Making in Vulnerable Populations Final Progress Report Shared Decision Making in Vulnerable Populations: Suzanne Mitchell, MD, MS Principal Investigator: Suzanne Mitchell, MD, MS Team Members: Brian Jack, MD (Primary mentor); Nancy Kressin, PhD (BMC); Paul Schroy, MD, MS (…

  11. Statistical Brief #37

    hcup-us.ahrq.gov/reports/statbriefs/sb37.jsp
    September 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.

  12. Statistical Brief #27

    hcup-us.ahrq.gov/reports/statbriefs/sb27.jsp
    March 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.

  13. 2022 National Healthcare Quality and Disparities Report Detailed Methods for Medical Expenditure Panel Survey Tables (pdf file)

    www.ahrq.gov/sites/default/files/wysiwyg/research/findings/nhqrdr/2022qdr-mepsmethods.pdf
    December 01, 2022 - MEPS uses an overlapping panel design in which data are collected through a preliminary contact followed … for NHQDR data reporting, MEPS estimates in the NHQDR tables were suppressed when they were based on sample … sizes of fewer than 100 or when their relative standard errors were 30% or more. … Measure Changes Due to 2018 MEPS Redesign The MEPS instrument design changed beginning in spring 2018 … collected with the redesigned instrument, and no data were transformed to conform to the previous design

  14. Sports-Related Emergency Department Visits and Hospital Inpatient Stays, 2013 #207

    hcup-us.ahrq.gov/reports/statbriefs/sb207-Sports-Hospital-Emergency-Department-2013.jsp
    July 01, 2016 - The redesign incorporates two critical changes: Revisions to the sample design—starting … 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. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analysis … Hospitals, 2011 For a detailed description of HCUP and more information on the design of

  15. Interventions To Prevent Age-Related Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer’s-Type Dementia (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/pdf/cognitive-decline_executive.pdf
    March 01, 2017 - These included sample size, length of followup, measurement issues, and attrition. … no difference was difficult, especially when we were unable to use meta-analysis to address small sample … size issues. … Recommendations for Design and Methodology of Future Studies Future trials such as RCTs or pragmatic … While some researchers measured baseline cognitive function as part of the trial design, the degree

  16. Interventions To Prevent Age-Related Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer’s-Type Dementia (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/related_files/cognitive-decline_executive.pdf
    March 01, 2017 - These included sample size, length of followup, measurement issues, and attrition. … no difference was difficult, especially when we were unable to use meta-analysis to address small sample … size issues. … Recommendations for Design and Methodology of Future Studies Future trials such as RCTs or pragmatic … While some researchers measured baseline cognitive function as part of the trial design, the degree

  17. Trends in Pediatric and Adult Hospital Stays for Asthma, 2000-2010 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb169-Asthma-Trends-Hospital-Stays.pdf
    August 01, 2013 - Hospitals, 2011 For a detailed description of HCUP, more information on the design of the Nationwide

  18. Statistical Brief #128: Hospital Stays with Cardiac Stents, 2009 (pdf file)

    hcup-us.ahrq.gov/reports/statbriefs/sb128.pdf
    August 01, 2011 - For a detailed description of HCUP, more information on the design of the NIS, and methods to calculate

  19. Layout 1 (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/related_files/recombinant-factor-viia_executive.pdf
    May 01, 2010 - For these components, we made use of different categories of studies classified by study design and quality … size and methods to characterize exposure). … As necessary, we used a meta-analytic methodology developed specifically for this type of study design … Overall, these studies were of fair quality and had small sample sizes insufficient to evaluate mortality … With the exception of use in ICH, study sample sizes were small (median of 24 treated patients).

  20. Overview of Operating Room Procedures During Inpatient Stays in U.S. Hospitals, 2014 #233

    hcup-us.ahrq.gov/reports/statbriefs/sb233-Operating-Room-Procedures-United-States-2014.jsp
    December 01, 2017 - The redesign incorporates two critical changes: Revisions to the sample design—starting … 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. … The change in sample design for 2012 necessitates recomputation of prior years' NIS data to enable analyses … For a detailed description of HCUP and more information on the design of the National (Nationwide) Inpatient
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