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Showing results for "sample".

101. Microsoft Word - Comparative_Effectiveness_Research_Review_Disposition_of_Comments_Report_Final_120710_refs_delinked1.docx (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/autism_disposition-comments.pdf
     November 01, 2010 - With the assistance of our technical experts, we selected a minimum sample size of 10 in order to maximize … of the Autism Diagnostic Interview - Revised in 2003 allowed researchers to introduce metrics of sample … We have added rationale about our decisions regarding sample size to the Methods section of the review … Thank you for your comment Methods It was not clear from the EPC report why 10 was used as a sample … By admitting "case study and case-control designs" but excluding all "behavioral studies with sample

102. Transparency of Reporting Requirements: Tympanostomy Tubes (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-tympanostomy_research-protocol.pdf
     September 02, 2016 - This spreadsheet will capture basic intervention, outcome, study design, sample size, and whether results … evidence map to include data on study design, intervention type and duration, population, outcomes, and sample … We quantify such impact as a potential increase in total study population sample size (>20%), a change … Estimating effect size under publication bias: small sample properties and robustness of a random effects … With input from the TEP, study-design and sample-size filters will be implemented, as needed, to contain

103. AHRQ Evidence-based Practice Center (EPC) Program (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/wysiwyg/pdf/epc-march-2023-grand-rounds-slides.pdf
     January 01, 2023 - 8 2 19 Pre/Post† 11 0 0 3 14 Total 19 25 12 28 84 Study Design Considerations con’t Study Sample … Sizes • Sample size requirements vary by study purpose (establishing superiority vs. … equivalence) • Sample size requirements vary by outcome measure, and baseline risk for the outcome … data • More common reason for low or insufficient rating • Precision • Often low due to inadequate sample … common: weaker study designs are common - Lack of control for confounders • Next most frequent: small sample

104. Disposition of Comments Report for Testing of CYP2C19 Variants and Platelet Reactivity for Guiding Antiplatelet Treatment (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/antiplatelet-treatment_disposition-comments.pdf
     September 25, 2013 - We agree that number of studies and sample size of each can affect the performance of heterogeneity … The blood sample is further centrifuged at higher speed to isolate platelet poor plasma (PPP). … Manipulation Required Prior to Measurement; Sample Matrix; Materials Required; Pre-analystic Sample … • Differences in sample matrix. LTA uses plasma; VASP and VerifyNow use whole blood. … • Sample transport (the VerifyNow test is point‐of‐care and can be performed at the location of sample

105. PREGNANCY, INCLUDING PRETERM BIRTH #12 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/12_pregnancy_potential_high_impact_june_2012.pdf
     January 01, 2012 - uses Fetal Nucleic Acid Technology to detect and isolate circulating fetal DNA from a maternal blood sample … Sequenom states that circulating fetal DNA can be obtained from a maternal blood sample very early … using Fetal Nucleic Acid Technology to detect and isolate circulating fetal DNA from a maternal blood sample … Sequenom states that circulating fetal DNA can be obtained from a maternal blood sample very early … comfort relative to invasive tests, and the ability of most physician’s offices to perform blood sample

106. genetic-testing-developmental-disabilities-protocol-140930 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/genetic-testing-developmental-disabilities_research-protocol.pdf
     September 30, 2014 - For example, some case series may not report the study sample size in the abstract; other studies (e.g … Screening for subtle chromosomal rearrangements in an Egyptian sample of children with unexplained … Linearity of tests is established by testing a dilution series of a positive sample. … stabilizer (where appropriate), cross-contamination during sample processing, inclusion of normal, … after adding a known amount of that analyte to the sample.

107. Disposition of Comments_Comparative Effectiveness Review No. 256: Effectiveness of Telehealth for Women's Preventive Services (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-256-telehealth-women-disposition-comments.pdf
     June 16, 2022 - marginalized populations, for example in the excluded study Glass et al., approximately 40% of the sample … They are not a representative sample of the broader patient base. … And ignores unrepresentativeness of sample who participate in telehealth studies. … and national NZ sample) is problematic as the review includes two later studies that are examining … They are not a representative sample. Issue now addressed.

108. Version-3-Immunity-After-Covid-19-Appendix-Table-B-1 (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/version-3-immunity-after-COVID-19-appendix-table-B-1.xlsx
     January 24, 2022 - Sample collection post-infection: T0: 2 months T1: 3 months T2: 5 months T3: 7 months T4: 8 months T5 … flourescent multiplex immunoassay In-house cytopathic effect-based microneutralization test FMIA: A sample … A sample was considered positive for N-IgG when N-IgG concentration was ≥0.58 BAU/ml. … Cross-sectional NA - serosurvey with one sample HCW Health care workers and first responders in New York … with documented past infection Two positive RT-PCR samples ≥90 days apart or a new RT-PCR positive sample

109. Future Research Needs for Hematopoietic Stem-Cell Transplantation in the Pediatric Population (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/stem-cell-children-future_research.pdf
     February 01, 2012 - fact that we are dealing with rare diseases and the associated difficulty in attaining appropriate sample … recruitment of sufficient number of practices willing to be randomized can be a constraint, so sample … List of recently published studies Research Gap Study Study Objective Research Design Sample Size … of recently published studies (continued) Research Gap Study Study Objective Research Design Sample … of recently published studies (continued) Research Gap Study Study Objective Research Design Sample

110. Treatment of Dementia Among Community-Dwelling and Institutionalized Medicare Beneficiaries (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/dementia-databases-methods_research.pdf
     May 01, 2008 - LTC) and other characteristics of the sample (e.g., demographics). … Aripiprazole and clozapine were not used by anyone in the sample with ADRD. … Care Research Report Number 4 Discussion This study used a large nationally representative sample … Limiting our sample to only claims would restrict it to those who received medical attention over the … The prevalence of dementia in a statewide sample of new nursing home admissions aged 65 and older:

111. Medical Therapies for Children With Autism Spectrum Disorder—An Update (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/asd-medical-executive-170505.pdf
     May 01, 2017 - were generally well conducted, evidence remains insufficient for most interventions due to small sample … In our scan of a random sample of 150 non-English abstracts retrieved by our MEDLINE search, only two … size that would have been excluded in our 2011 review (which required a sample size of 30) in the … Limitations of the Evidence Base As noted, studies in the review had small sample sizes and typically … Sample size and participant followup were frequently insufficient to allow firm conclusions.

112. medication-assisted-treatment-protocol-160224 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/opioid-use-disorder_research-protocol.pdf
     February 24, 2016 - Specific sample questions to be asked of the Key Informants based on perspective are listed below in … Sample  Questions  for  Key  Informants   Key  Informant   Perspective   Sample  Questions   Researchers … A sample search strategy is listed below in Table 2. … Sample  Search  Strategy   1.  Opiate  Substitution  Treatment/   2.   … Data  Element   Details   Study  characteristics   Study  design   Inclusion/exclusion  criteria   Sample

113. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/autism_research-protocol.pdf
     December 09, 2009 - While controlled trials seem to be increasing, much research is observational, generally with small sample … symptoms • Relevant outcomes must be able to be abstracted from data presented in the papers • Sample … After reviewing a sample of relevant articles, the Methods and Content Leads will design the data collection … publication, study location (e.g., country, city, state) and time period, population description, sample … will use established concepts of the quantity of evidence (e.g., numbers of studies, aggregate ending sample

114. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/therapies-for-autism-spectrum-disorder-2-9-2010.pdf
     January 01, 2010 - While controlled trials seem to be increasing, much research is observational, generally with small sample … symptoms • Relevant outcomes must be able to be abstracted from data presented in the papers • Sample … After reviewing a sample of relevant articles, the Methods and Content Leads will design the data collection … publication, study location (e.g., country, city, state) and time period, population description, sample … will use established concepts of the quantity of evidence (e.g., numbers of studies, aggregate ending sample

115. Appendixes A-D: Recurrent Nephrolithiasis in Adults and Children: Comparative Effectiveness of Preventive Medical Strategies (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/kidney-stones-draft-appendices.pdf
     January 01, 2025 - 2012 Report3 First Author, Year 2025 Report Disposition Ahlstrand, 19954 Excluded for ineligible sample … size (less than 30 per arm) Ala-Opas, 19875 Excluded for ineligible sample size (less than 30 per arm … ) Barcelo, 19936 Excluded for ineligible sample size (less than 30 per arm) Borghi, 19937 Excluded … size (less than 30 per arm) Premgamone, 200125 Excluded for ineligible sample size (less than 30 per … for ineligible sample size (less than 30 per arm) Scholz, 198228 Excluded for ineligible sample size

116. Hepatic-Fibrosis White-Paper (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/hepatic-fibrosis_white-paper.pdf
     April 01, 2014 - Sample of Letter Sent to Authors 1 Background Liver fibrosis and cirrhosis refer to scarring … 60). 9, 24-43 See Appendix A for a list of studies included in this report and Appendix B for a sample … measures of diagnostic accuracy were reported, but other necessary information was missing (e.g., sample … Sample of Letter Sent to Authors Dear Dr. _____________, We are researchers at the Pacific Northwest … Sample of Letter Sent to Authors

117. An analytical framework for quantifying components of variability in prescriber decisions (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/instrumental-variable-methods_research.pdf
     April 01, 2010 - First, standard IV estimators possess a finite sample bias which is inversely proportional to the F … whether the instruments are sufficiently strong. 10 As discussed in the appendix, the finite sample … Split-sample Instrumental Variables Estimates of the Return to Schooling. … In small samples, IV estimators based on 2SLS possess substantial finite sample bias. … methods. 56,57 Finite sample bias is likely to be more of a problem in the presence of many weak

118. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/registries-guide_executive.pdf
     April 01, 2007 - effect, should one exist, or achieve a desired level of precision is specified, whether or not the sample … For example, a registry might compare a random sample of patient data (e.g. 5 percent to 20 percent … of patients and specific data variables) with patient charts or with a sample of registry sites based … • Rigor can be enhanced by external validation for a sample of data and/or data review by an adjudication … • For studies of safety, effectiveness, and comparative effectiveness, a sample of data are compared

119. Supplemental Project To Assess the Transparency of Reporting Requirements for Studies Evaluating the Effectiveness of Treatment Options for Symptoms of Diabetic Peripheral Neuropathy (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-neuropathy_research.pdf
     March 01, 2018 - Comparison of the sample size, primary outcome, and withdrawals due to adverse events reported in the … Two reviewers compared the planned sample size, the primary outcome, and the analysis plan specified … • Comparison of prespecified statistical plan • Sample sizes, total. … Sample Size Followup Published literature only Karmakar, 201435 Not found NA NA NA 28 6 weeks … Sample Size Followup Published literature only Thienel, 200441a Not found NA NA NA 1269

120. Template for Draft Reports (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/osteoarthritis-knee-future_research.pdf
     February 01, 2013 - Large sample sizes and the identification, measurement, and appropriate adjustment for confounding … Recruitment that includes sufficient numbers of patients in select subgroups allows sample to better … A large sample will be required and follow-up should extend beyond treatment duration. … A large sample will be required and follow-up should extend beyond treatment duration. … A large sample will be required and follow-up should extend beyond treatment duration.