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  1. effectivehealthcare.ahrq.gov/sites/default/files/pdf/ace-inhibitor-arb-update_research-protocol.pdf
    May 07, 2010 - renal function, angioedema, cough, hyperkalemia • Tolerability • Persistence • Adherence 6) Sample … size: - We will not exclude articles based on sample size during the full text screening but may … A sample data abstraction form and additional guidance on assessing quality and applicability from our
  2. effectivehealthcare.ahrq.gov/sites/default/files/pdf/acs-pci-adjunctive-devices_research-protocol.pdf
    July 01, 2010 - that enrolled <500 subjects will be excluded, since numerous RCTs already exist within this smaller sample … Observational studies will be assessed for sample size, participant selection method, exposure measurement … duration with clinically relevant treatment modalities, assessed adverse events, had an adequate sample
  3. effectivehealthcare.ahrq.gov/sites/default/files/related_files/long-term-care-adults_disposition-comments.pdf
    November 07, 2012 - It would have been useful to have added the sample size and the period of the data collection to Tables … Sample size is a critical variable in determining the value of the study. … A summary statement was added to the tables on sample characteristics to help with interpretation. … A summary statement was added to the tables on sample characteristics to help with interpretation.
  4. effectivehealthcare.ahrq.gov/sites/default/files/related_files/medical-evidence-communication_executive.pdf
    November 01, 2013 - Sample sizes ranged from 174 participants to 5,500 participants. … Sample sizes ranged from 114 participants to 3,293 participants. … Sample sizes ranged from 120 participants to 2,944 participants. … used convenience samples, so unmeasured confounding may exist because of selection bias with the sample
  5. effectivehealthcare.ahrq.gov/sites/default/files/cer-240-acute-pain-appendix-f.xlsx
    May 29, 2025 - of bias assessment for cohort studies Author, Year Did the study attempt to enroll all (or a random sample … of) patients meeting inclusion criteria, or a random sample (inception cohort)?
  6. Untitled (pdf file)

    effectivehealthcare.ahrq.gov/sites/default/files/pdf/infertility_research-protocol.pdf
    October 12, 2015 - sample!sizes! •! Observational!studies:!sample!size!≥100!subjects! ! Editorials,! … Before they are used, abstraction-form templates will be pilot-tested with a sample of included articles … with our component based approach, we will use these assessments where feasible after reviewing a sample … Infertility treatment in a population-based sample: 2004-2005. … Race-ethnicity and medical services for infertility: stratified reproduction in a population-based sample
  7. effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-neuropathy_research-protocol.pdf
    September 01, 2016 - Reasons for delays (if any) Population Total enrollment, sample size in each arm, drop-outs Participants … • Comparison of prespecified statistical plan • Sample sizes, total and per arm.
  8. effectivehealthcare.ahrq.gov/sites/default/files/data-extraction.ppt
    January 01, 2009 - Common Problems Encountered When Creating Data Extraction Forms (Evidence Tables) (II) Sample Fields … Sample Fields From a Table Guidance Document: Vanderbilt University Evidence-based Center These are examples
  9. effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-grading-evidence_methods.pdf
    November 01, 2013 - It is based on the potential for random error evaluated through the sufficiency of sample size and, … EPCs can evaluate sufficiency of sample size relative to the optimal information size (OIS). … After assessing the adequacy of the sample size or events, EPCs must consider whether the potential … size across studies assessed at risk of reporting bias and the total number and sample size across … cPrecision: evidence sample size did not meet OIS; CI surrounding the risk ratio for one of the three
  10. effectivehealthcare.ahrq.gov/sites/default/files/related_files/treatment-resistant-depression_disposition-comments.pdf
    September 01, 2011 - table (included in the executive summary and discussion sections) it could be informative to describe sample … We agree, and we have added a sample size column to these summary tables. … At this time, the small size of the study sample and resulting limitations of statistical power in the … We agree, and we have added a sample size column to these summary tables. … In this sample, patients with histories of We will identify this article in the appendix.
  11. effectivehealthcare.ahrq.gov/sites/default/files/product/pdf/rt-bone-metatases-final-protocol-amendment.pdf
    August 10, 2022 - Appendix A contains our sample MEDLINE® search strategy which will be adapted to search the other databases … into categories that include but are not limited to: study design, year, setting, country, funding, sample … This may be based on sample size sufficiency and number of events. … When quantitative synthesis is not possible, sample size and assessment of variance within individual … Sample Search Strategies: Radiation Therapy for Bone Metastases Strategies will be adapted for data
  12. effectivehealthcare.ahrq.gov/sites/default/files/pdf/colorectal-cancer-staging_research-protocol.pdf
    May 20, 2013 - for inclusion, but retrospective studies must use consecutive enrollment or enrollment of a random sampleSample  Search  Strategy  for  EMBASE®  and  MEDLINE®   (OVID)   Appendix Table 5. … Sample Search Strategy for EMBASE® and MEDLINE® (OVID) Set Number Concept Search Statement 1 Colorectal … Did the study enroll all, consecutive, or a random sample of patients? 2.
  13. effectivehealthcare.ahrq.gov/sites/default/files/renal-cancer_disposition-comments.pdf
    February 24, 2016 - state “Percutaneous renal mass sampling can be done by fine needle aspiration with a reading of the sample … to predict outcomes were prospective in nature let alone prospectively validated in an independent sample … Precision is based more on sample size and number of studies.
  14. effectivehealthcare.ahrq.gov/sites/default/files/related_files/polyunsaturated-fatty-protocol.pdf
    January 01, 2024 - ., prisons) Publication ● English language ● Published in peer-reviewed journals * Minimum sample … maximum prediction score is <0.40, we will screen at least 400 additional consecutive citations (this sample … following for each life stage (as feasible), each analyzed PUFA, and each outcome: study types and sample
  15. effectivehealthcare.ahrq.gov/sites/default/files/related_files/saturated-fat-replacement-protocol.pdf
    January 01, 2024 - ., prisons) Publication ● English language ● Published in peer-reviewed journals * Minimum sample … maximum prediction score is <0.40, we will screen at least 400 additional consecutive citations (this sample … saturated fat with different macronutrients (as feasible), and each 10 outcome: study types and sample
  16. effectivehealthcare.ahrq.gov/sites/default/files/related_files/genitourinary-symptoms-protocol_0.pdf
    July 10, 2023 - prospective observational studies with concurrent comparison group and analytic techniques to control for sample … prospective observational studies with concurrent comparison group and analytic techniques to control for sample … prospective observational studies with concurrent comparison group and analytic techniques to control for sample … subject inclusion and exclusion criteria, intervention and control 10 characteristics, sample
  17. effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-267-adhd-executive-summary.pdf
    March 01, 2024 - Executive Summary: ADHD Diagnosis and Treatment in Children and Adolescents Comparative Effectiveness Review Number 267 ADHD Diagnosis and Treatment in Children and Adolescents Executive Summary Main Points Diagnosis • Multiple approaches showed promising diagnostic performance (e.g., usin…
  18. effectivehealthcare.ahrq.gov/sites/default/files/related_files/patient-monitoring-systems-appendix-c.xlsx
    January 01, 2024 - length of stay MD mean difference MET medical emergency team MEWS Modified Early Warning Score n sample … investigating change in standard care Author, Year Arm Arm Name Outcome Definition Followup Timepoint Sample … machine learning, communication cascades Author, Year Arm Arm Name Outcome Definition Followup Timepoint Sample … machine learning, communication cascades Author, Year Arm Arm Name Outcome Definition Followup Timepoint Sample … machine learning, communication cascades Author, Year Arm Arm Name Outcome Definition Followup Timepoint Sample
  19. effectivehealthcare.ahrq.gov/sites/default/files/related_files/gastric-cancers-supplementary-app-d.xlsx
    January 01, 2023 - prelim model and final) SAKK 43/99 OS Low High Low High High High early termination, underpowered sample … analysis plan SAKK 43/99 Grade 3 to 5 AEs Low High Low High High High early termination, underpowered sample
  20. effectivehealthcare.ahrq.gov/sites/default/files/related_files/trauma-child-interventions_executive.pdf
    February 01, 2013 - We also required a sample size of 10 or more to ensure that we focused on hypothesis-testing studies … Second, the sample sizes of the studies included in this review were small to medium. … Insufficient funding also may contribute to small sample sizes. … The small sample sizes created several problems with the reliability of the analyses, and rendered … Loss of subjects to followup makes the issues related to sample size even more pronounced.

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