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Total Results: 969 records

Showing results for "design sample size".

461. Fecal-Incontinence Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/fecal-incontinence_research-protocol.pdf
     November 30, 2014 - studies will be assessed by two independent investigators using instruments specific to each study design … Moderate risk of bias may be assigned to large cohort studies with a sample size for adequate power … Study limitations will be rated as low, moderate, or high according to study design and conduct. … Therefore study questions, design, and methodological approaches do not necessarily represent the views … Study design: prospective, retrospective, or mixed?

462. Disposition of Comments Report for Core Needle and Open Surgical Biopsy for Diagnosis of Breast Lesions: An Update to the 2009 Report (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/breast-biopsy-update_disposition-comments.pdf
     September 10, 2014 - assessment is by definition subjective and cannot always distinguish between poor reporting and poor design … determined by the threshold for performing biopsy and affects yield) is a critical aspect in the design … I have some concern about the levels of bias and strength of conclusions related to study design.

463. AHRQ Slide Template 2009 (ppt file)
     effectivehealthcare.ahrq.gov/sites/default/files/data-extraction.ppt
     January 01, 2009 - In: Design and analysis of ecological experiments; 1993. Data Extraction: A Boring Task? … Design and analysis of ecological experiments. New York: Chapman & Hall; 1993. p. 347-70. … Data Elements: Timing and Study Design The data elements to be extracted vary by type of study. … Although there are common generic elements, forms need to be adapted to each topic or study design to … Design and analysis of ecological experiments. New York: Chapman & Hall; 1993. p. 347-70.

464. Evidence Summary for Treatments for Acute Pain: A Systematic Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/cer-240-acute-pain-evidence-summary.pdf
     December 01, 2020 - a potential marker for publication bias) due to small numbers of trials and heterogeneity in study design

465. Systematic Review Search Strategy Development Tools: A Practical Guide for Expert Searchers (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/search-strategy-white-paper.pdf
     February 01, 2025 - many of the processes involved in the conduct of systematic reviews, particularly search strategy design … Several of these are intended to help with the design and conduct of search strategies. … literature websites. 14 Conclusion Software tools have the potential to improve the search-design … tables may allow search designers to identify the tools available to them at each step of the search-design … Sample Size Search (SSS) Tool for PubMed exclusion reason: no longer available. 67.

466. Behavioral Programs for Diabetes Mellitus (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/diabetes-behavior-programs_executive.pdf
     September 11, 2015 - pairwise meta-analysis when two or more eligible trials were sufficiently similar on the basis of study design … size and variance. … included studies n = 11 Number of full-text articles excluded n = 504 Reasons for exclusion: • Design … Plot of network meta-analysis results for HbA1c 17 few studies, small sample sizes, and/or wide credibility … Some studies had small sample sizes, and a few failed to achieve baseline comparability in their samples

467. Major-Depressive-Disorder Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/major-depressive-disorder_research-protocol.pdf
     November 24, 2014 - Retrospective controlled cohort studies - Case-control studies - Nonrandomized studies must have a minimum sample … size of 500 participants • Case series • Case reports • Nonsystematic reviews • SRs without meta-analyses … We will design data abstraction forms to gather pertinent information from each article. , including … assessment, population characteristics (such as age, sex, race or ethnicity, or mean disease duration), sample … size, loss to followup, withdrawals because of adverse events, results, and adverse events reported

468. Disposition of Comments Report for Biologic and Nonbiologic Systemic Agents and Phottherapy for Treatment of Chronic Plaque Psoriasis (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/psoriasis-chronic_disposition-comments.pdf
     November 27, 2012 - compared to placebo) from different studies that have very similar inclusion/exclusion criteria and design … In fact, almost all biologic trials are placebo-controlled and are similar, if not exact, in design. … The specific comparisons in each study as well as the sample size can be found in Appendix Table 4 … The study type, specific comparisons in each study, sample size, inclusion and exclusion criteria,

469. Disposition of Comments for Epoetin and Darbepoetin for Managing Anemia in Patients Undergoing Cancer Treatment (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cancer-anemia-update_disposition-comments.pdf
     April 25, 2013 - This outlines the broad design and analysis of a registry that could likely address the important unanswered … Was each individual trial weighted equally, or were trials weighted in some way by sample size? … size across the body of evidence is reasonably large (e.g., 4000 patients), EPCs can consider the … sizes no survival effect could be estimated. … size, to compare observed risks that occur in clinical trials.16 The risk difference is important

470. Disposition of Comments Report for The Patient-Centered Medical Home (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/patient-centered-medical-home_disposition-comments.pdf
     July 03, 2012 - PCMH evaluations suffer inherently from sample size needed to assess impacts on clinical and economic … - When measuring effect size, was each study weighted equally or were studies with larger sample sizes … Identify where investments in design and measurement of PCMH process and outcomes should be made to

471. VU EPC DBD Protocol_AHRQ comments_revised_clean (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/disruptive-behavior-disorder_research-protocol.pdf
     January 30, 2014 - as this date cutoff aligns with the availability of the DSM- IV.70 We will not specify a minimum sample … size (i.e., number of participants per arm) for eligible studies. … We intend to exclude entirely studies with a fatal flaw (i.e., a deficit of design or conduct that … will use established concepts of the quantity of evidence (e.g., numbers of studies, aggregate ending-sample … sizes), the quality of evidence (from the quality ratings on individual articles), and the coherence

472. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/c-diff-infections_research-protocol.pdf
     May 24, 2010 - Source: www.effectivehealthcare.ahrq.gov Published Online: May 24, 2010 justification of the sample … size. … They have serious errors in design, analysis, or reporting; large amount of missing information; or … Therefore study questions, design and/or methodological approaches do not necessarily represent the

473. Amended Protocol: Maternal and Childhood Outcomes Associated with the Special Supplemental Nutrition Program for Women, Infants and Children (WIC) (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/product/pdf/wic-outcomes-nutrition-protocol-amended.pdf
     October 01, 2020 - The articles will not be excluded based on the study design and outcome at this level. … For all articles, reviewers will extract information on general study characteristics (e.g., study design … with quantitative studies, we will extract information on general study characteristics (e.g., study design … When possible, we will stratify our findings by population, study design, and intervention (e.g. nature … Therefore, study questions, design, and methodological approaches do not necessarily represent the views

474. Prehospital EMS Blood Transfusion and Fluid Interventions for Hemorrhagic Shock (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ems-blood-transfusion-protocol-amendment.pdf
     February 04, 2025 - The key dilemma for EMS system design is determining what options are feasible and sustainable for individual … Consideration should be given to the formulation of precise scientific questions, optimal study design … The criteria used will depend on the study design as recommended in the chapter, “Assessing the Risk … the width of confidence intervals relative to a clinically important effect estimate, sufficiency of sample … size, and number of events.

475. Disparities-Quality-Improvement Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/disparities-quality-improvement_executive.pdf
     August 01, 2012 - A minimum sample size of 50 individuals per study and intervention group or subgroup. … (e.g., minimum effect size, standard error) to inform a power calculation, we derived the minimum sample … size from expert opinion. … benefit from intervention compared with Whites during any time period. 6 Author, Year, Study Design … Summary of effects on disparities in health outcomes associated with sex Author, Year, Study Design

476. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/treatment-resistant-depression_executive.pdf
     September 01, 2011 - 3 fair trials: no significant differences in remission maintenance of remission; however, small sample … sizes in two of the studies and the presence of a co-intervention in the third study make results … A single study with a small sample size indicated no difference in withdrawals due to adverse events … TRD patients with MDD compared with those with bipolar disorder will help guide future clinical trial design

477. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/cancer-anemia-update_research-protocol.pdf
     June 16, 2010 - Sample size and extent of missing data will be extracted. … • Trial characteristics: design, method of randomization, concealment of allocation, blinding of … • Patients: sampling, exclusion criteria, sample size, baseline characteristics, similarity of … size), or data with consistently defined outcomes across trials … Therefore study questions, design, and/or methodological approaches do not necessarily represent the

478. Chronic-Urinary-Retention Research (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/chronic-urinary-retention_research.pdf
     September 01, 2014 - Studies enrolled a total of 139 patients with sample sizes ranging from 13 to 86. … sizes. … Studies enrolled a total of 139 patients with sample sizes ranging from 13 to 86. … No differences between groups were reported; however, the small sample sizes were likely unable to detect … Not addressed by current literature Larger sample sizes will enable this type of analysis a One

479. Untitled (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/infertility_research-protocol.pdf
     October 12, 2015 - design! •! Original!data,!including!systematic!reviews!and!meta0analyses! •! RCTs,!prospective!and! … sample!sizes! •! Observational!studies:!sample!size!≥100!subjects! ! Editorials,! … We will design the data abstraction forms for this project to collect the data required to evaluate … -based studies) and study design (e.g., RCT versus observational) that may be related to outcomes. … They had serious errors in design, analysis, or reporting; large amounts of missing information; or

480. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/autism_executive.pdf
     April 01, 2011 - size to accrue adequate data on safety and tolerability as well as efficacy. … Single-subject design studies were not excluded on the basis of their design; however, the majority of … Even in studies with a comparison group, sample size is frequently insufficient to draw conclusions. … the outcome that was the primary outcome of a priori interest and on which, presumably, they based sample … - size calculations (when these calculations were present).