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Showing results for "design sample size".

1721. Error Producing Conditions in the Intensive Care Unit (pdf file)
      www.ahrq.gov/sites/default/files/wysiwyg/professionals/quality-patient-safety/patient-safety-resources/resources/advances-in-patient-safety-2/vol3/Advances-Drews_15.pdf
      February 26, 2008 - Poor interface design in health care is a serious problem. The U.S. … (FDA) reported that from 1985 to 1989, up to 50 percent of device recalls were due to poor product design … A potential limitation of the present study is the relatively small sample size (25 nurses). … increase the generalizability of our findings, future studies of EPCs in the ICU should employ larger sample … sizes.

1722. Statistical Brief #77: Payers of Emergency Department Care, 2006 (pdf file)
      hcup-us.ahrq.gov/reports/statbriefs/sb77.pdf
      July 01, 2009 - For a detailed description of HCUP, more information on the design of the NEDS, and methods to calculate

1723. Harnessing Health Information Technology to Prevent Medication-Induced Birth Defects - Final report (pdf file)
      digital.ahrq.gov/sites/default/files/docs/citation/r18hs017093-schwarz-final-report-2011.pdf
      January 01, 2011 - The systems were evaluated using a factorial design cluster-­‐ randomized controlled trial. … the contraceptive vital sign questions were not asked on annual preventive visits, which cut our sample … size in half. … that these visits were inadvertently excluded from this study by a programming error, and the final sample … size was smaller than intended.

1724. Final Progress Report: Changes in Hospital Care Organization and Outcomes (pdf file)
      www.ahrq.gov/sites/default/files/2024-09/kutney-lee-report.pdf
      January 01, 2024 - The funding sources had no role in the study design; data collection, analysis, or interpretation; or … Methods: This study employed a retrospective, observational, two-stage panel design to assess effects … METHODS Study Design This study employed a retrospective, observational, two-stage panel design to

1725. Expenditures for Key Diet-Related Health Conditions, 2021-2022
      meps.ahrq.gov/data_files/publications/st561/stat561.shtml
      May 01, 2025 - Design and Methods of the Medical Expenditure Panel Survey Household Component . … Design, Methods, and Field Results of the Medical Expenditure Panel Survey Medical Provider

1726. 2018 National Healthcare Quality and Disparities Report Detailed Methods for the Medical Expenditure Panel Survey (pdf file)
      www.ahrq.gov/sites/default/files/wysiwyg/research/findings/nhqrdr/2018qdr-mepsmethods.pdf
      January 01, 2020 - The HC uses an overlapping panel design in which data are collected through a preliminary contact followed … standard errors were derived using SUDAAN statistical software, which accounts for the complex survey design … in the QDR (and NHQR and NHDR), MEPS estimates in the tables are suppressed when they are based on sample … sizes of fewer than 100 or when their relative standard errors are 30% or more.

1727. Ptsd-Adults-Trauma-Interventions Executive (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-adults-trauma-interventions_executive.pdf
      April 01, 2013 - of a body of evidence, this approach incorporates four key domains: risk of bias (includes study design … Because the knowledge base comprises largely single studies with small sample sizes, we concluded that … assessed as high risk of bias have significant flaws of various types (stemming from serious errors in design … between-group differences at baseline) An important task of systematic reviews is to assess whether design … Investigators could also attempt to recruit sample sizes that provide sufficient power to detect prespecified

1728. Improving Meaningful Access of Internet Health Information for Older Adults - Final Report (pdf file)
      digital.ahrq.gov/sites/default/files/docs/publication/r21hs018831-czaja-final-report-2013.pdf
      January 01, 2013 - Key Words: Internet; search engine; health, information seeking; sensemaking; user-centered design … health care services, adherence, and health self-efficacy. 3 Overview of the Study Design … tools (described below) developed at PARC to health information-seeking tasks through an iterative design … is an iterative design approach where “users” are involved early in the design process. … Phase 2—Formal Evaluation Study Purpose Overview of the Study Design The primary purpose of the

1729. Evidence-based Practice Center Systematic Review Protocol (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/migraine-emergency_research-protocol.pdf
      July 18, 2011 - Inclusion criteria Study design Efficacy and effectiveness: RCTs and NRCTs. … The tables will include information on author, date of publication, study design, setting, treatment … groups, inclusion/exclusion criteria, sample size, study quality, and outcomes with effect sizes. … If the studies are homogenous with respect to design, population, intervention, and outcomes, results … Therefore study questions, design and/or methodological approaches do not necessarily represent the

1730. Patient Experience Measures from the CAHPS Health Plan Survey (pdf file)
      www.ahrq.gov/sites/default/files/wysiwyg/cahps/surveys-guidance/hp/about/measures-hp50-2109.pdf
      September 08, 2017 - Making survey results easy to report to consumers: How reporting needs guided survey design in CAHPS … measures from supplemental items that did not achieve a high enough level of reliability at the suggested sample … sizes to be recommended for public reporting.

1731. 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.

1732. Archived: Final Evidence Summary: Obesity in Children and Adolescents: Screening | United States Preventive Services Taskforce
      www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-summary39/obesity-in-children-and-adolescents-screening-2010
      January 15, 2010 - Two investigators independently quality rated the studies by using design-specific criteria ( Appendix … our previous USPSTF review, in which we found study concerns echoed by others, 45  including small sample … sizes, high attrition rates (among other quality issues), less-than-ideal outcome measures, and highly … indeterminate result in a reasonable manner Spectrum of patients included in study Sample … size Administration of reliable screening test The nature of the test being studied

1733. 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

1734. Archived: Final Evidence Review: Hepatitis B in Pregnant Women: Screening | United States Preventive Services Taskforce
      www.uspreventiveservicestaskforce.org/uspstf/document/final-evidence-review48/hepatitis-b-in-pregnant-women-screening-2009
      June 15, 2009 - Data Extraction One reviewer abstracted information on study design, sample size, entry criteria,

1735. 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.

1736. Patient Experience Measures from the CAHPS Clinician & Group Survey (pdf file)
      www.ahrq.gov/sites/default/files/wysiwyg/cahps/surveys-guidance/cg/about/measures-cg30-2309.pdf
      June 01, 2017 - Making survey results easy to report to consumers: How reporting needs guided survey design in CAHPS … the supplemental item sets that did not achieve a high enough level of reliability at the suggested sample … sizes to be recommended for public reporting.

1737. 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

1738. Myth Busting: Using the CG-CAHPS 12-Month Survey for Quality Improvement (pdf file)
      www.ahrq.gov/sites/default/files/wysiwyg/cahps/news-and-events/events/20131008_cg/mythbustingwebcast.pdf
      October 01, 2013 - Liza Nyeko As Rick stated, because sample sizes sometimes don't allow for dissemination of the results … So is there a certain threshold that you are looking for in terms of sample size before you share with … If we do release the data with sample sizes less than 45, we issue data with all sorts of caveats attached … size. … We have worked really hard at getting valid sample sizes and I think that is something that does take

1739. Chapter 9. Potential Future Uses of the Data Infrastructure | Agency for Healthcare Research and Quality
      www.ahrq.gov/practiceimprovement/delivery-initiative/ihs/chapter9.html
      December 01, 2017 - ARRA ACTION: Comparative Effectiveness of Health Care Delivery Systems for American Indians and Alaska Natives Using Enhanced Data Infrastructure Chapter 9. Potential Future Uses of the Data Infrastructure Previous Page Next Page Table of Contents ARRA ACTION: Comparative Effectiveness of Health Car…

1740. Disposition of Comments Report for Interventions for Adult Offenders With Serious Mental Illness (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/mental-illness-adults-prisons_disposition-comments.pdf
      August 21, 2013 - power problems of individual studies as our goal is to conduct meta-analysis, making individual study sample … sizes irrelevant. … Commentator & Affiliation Section Comment Response specific strengths and weaknesses, such as sample … size, outcome measures, and fidelity assessment, etc. … It’s something you design a priori to guide the research, in which case, mortality should be part of