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Total Results: 962 records

Showing results for "design sample size".

861. Disposition of Comments Report for Procalcitonin-Guides Antibiotic Therapy (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer78_procalcitonin_disposition_20121210.pdf
     October 05, 2012 - The first two research gaps are straightforward although not easy studies to design. … But difficult to design and implement in the real world. … appropriately note that definitively determining a mortality difference would require a very large sample … size. … and standard therapy and have a confidence interval that is narrow would require a large sample size

862. Meditation Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/meditation_research-protocol.pdf
     October 17, 2012 - In a situation where double blinding may not be feasible, the burden of the design issues is higher … Furthermore, given the anticipated large number of trials that have moved to a more rigorous design … This review will also identify those areas in which there are inadequate evidence to inform the design … They had serious errors in design, analysis, or reporting; large amounts of missing information; or … Therefore study questions, design and/or methodological approaches do not necessarily represent the

863. Disposition of Comments for Technical Brief 18 Public Reporting of Cost Measures in Health (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/public-reporting-cost-measures_disposition-comments.pdf
     March 05, 2015 - is able to address them, or what methodological/framework problems need to be resolved in order to design … Given, the small sample size of semipublic websites that we had access to, we could not make definitive

864. Disposition of Comments for Venous Thromboembolism Prophylaxis in Orthopedic Surgery (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/blood-clots-hip-knee-surgery_disposition-comments.pdf
     March 01, 2012 - Peer Reviewer #1 Executive Summary In the methods section, please justify how the sample size of … Peer Reviewer #1 Methods Please justify how the sample size of 750 was chosen for the observational … Peer Reviewer #1 Results 3.Study design and characteristics: When only a selection of included studies … Peer Reviewer #1 Results 2.Study design and characteristics: When only a selection of included studies … Peer Reviewer #1 Results 3.It is already stated in the study design and characteristics section that

865. Transparency of Reporting Requirements: Management of Infertility (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-infertility_research-protocol.pdf
     September 02, 2016 - For unmatched studies, we will conduct a manual match using the condition, intervention, sample size … record, we will abstract selected variables from the CT.gov record to determine whether key study design … Published online: September 2, 2016 3 • Number of study arms • Intervention description • Study design … interventions] Methods: Intervention 2 M/D/P [Assigned interventions] Methods: Comparators M/D/P [Study design

866. Evidence-based Practice Center Systematic Review Protocol: Depression in Children: Systematic Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/depression-childhood-protocol.pdf
     August 06, 2018 - Inpatient care, studies conducted in countries without a very high Human Development Index Study design … All other designs and studies using included designs that do not meet the sample size criterion … When studies with sample sizes of 1,000 or more participants are available for a given intervention … If large samples are not available, we plan to include studies with smaller sample sizes http://hdr.undp.org … Therefore, study questions, design, and methodological approaches do not necessarily represent the views

867. PowerPoint Presentation (ppt file)
     effectivehealthcare.ahrq.gov/sites/default/files/medical-test-reviews-strength-evidence.ppt
     June 01, 2012 - Risk of bias How study type/design/conduct may have contributed to systematic bias must be considered … The type and design of the study and how it is conducted can each contribute to systematic bias. … It is integrally related to sample size. … Precision is affected by the width of the confidence intervals and sample size. … Variability in study results is explained by differences in study design, patient population or test

868. PowerPoint Presentation (ppt file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/medical-test-reviews-strength-evidence.ppt
     June 01, 2012 - Risk of bias How study type/design/conduct may have contributed to systematic bias must be considered … The type and design of the study and how it is conducted can each contribute to systematic bias. … It is integrally related to sample size. … Precision is affected by the width of the confidence intervals and sample size. … Variability in study results is explained by differences in study design, patient population or test

869. Research Protocol (Amended): Treatment of Acute Pain--An Evidence Map (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/acute-pain-protocol-amended.pdf
     June 10, 2018 - Feasibility will be determined by the number and sample size of clinical trials available per topic.

870. White Paper_Living Systematic Reviews: Examining Excluded Full-Text Articles To Better Understand the Evidence Base on Plant-Based Treatments for Chronic Pain (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/living-systematic-reviews-full-text-articles-white-paper.pdf
     January 01, 2024 - Among the uncontrolled studies, sample sizes ranged from 7 to 8,165 (mean 551, median 151). … A randomized, double-blind, placebo- controlled, parallel-group, enriched-design study of Nabiximols … Trial Novotna, A.52 2011 A randomized, double-blind, placebo-controlled, parallel-group, enriched-design … A randomized, double-blind, placebo- controlled, parallel-group, enriched-design study of nabiximols

871. Searching for Relevant Studies (ppt file)
     effectivehealthcare.ahrq.gov/sites/default/files/searching.ppt
     January 01, 2011 - Searching for Relevant Studies Searching for Relevant Studies Agency for Healthcare Research and Quality (AHRQ) Training Modules for Methods Guide for Effectiveness and Comparative Effectiveness Reviews Searching for Relevant Studies Systematic Review Process Overview * Systematic Review Process Overview …

872. Systematic Review on Acute Treatments for Episodic Migraine: Surveillance Report 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/episodic-migraine-surveillance-report-1.pdf
     June 01, 2022 - Comparative observational studies Systematic reviews or meta-analyses (evaluating triptans and NSAIDs) Any sample … size Relevant systematic reviews, or meta-analyses (used for identifying additional studies) In … [Study design not of interest] 16. … [Study design not of interest] 33. … [Study design not of interest] 177.

873. Executive Summary CER 171: Noninvasive Testing for Coronary Artery Disease (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/coronary-artery-disease-testing_executive.pdf
     March 01, 2011 - Systematic Reviews of Interventions.12 Comparative observational studies were assessed for study design … Given the low incidence of mortality and MI in the studies previously noted, sample sizes in even the … As mentioned previously, study sample sizes and short-term followup may preclude evaluation of rare … Sufficient sample size may be a challenge, given the low prevalence of CAD that is likely in this group … RCTs or pragmatic trials with sufficient sample size to compare differential effectiveness and safety

874. Disposition of Comments for CER 201 Effectiveness of Indoor Allergen Reduction in the Management of Asthma (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-201-indoor-allergen-asthma-disposition-comments.pdf
     February 15, 2018 - When the body of evidence is small, such as a single trial with an inadequate sample size, or a few

875. Disposition of Comments for CER 163 Appropriate Antibiotics (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/antibiotics-respiratory-infection_disposition-comments.pdf
     January 27, 2016 - 105) as this study compared both POCT CRP and communication skills with usual care in a factorial design … was also able to do a head-to-head comparison of CRP and communication skills due to the factorial design … to compare all interventions using all outcomes, this would probably lead to an almost impossible design … The sample size of this study was less than 2000 patients, and as noted hospitalization is somewhat … The needed sample size would be about double.

876. Disposition of Comments Report for Screening, Behavioral Counseling, and Referral in Primary Care To Reduce Alcohol Misuse (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/alcohol-misuse_disposition-comments.pdf
     July 10, 2012 - PMID: 20042299; excluded for wrong study design Peer Reviewer #1 Results The summary for KQ2 reports … for important potential confounders; unable to separate results for zone 1 vs zone 2 vs zone 3; by design … These included randomised controlled trials and other studies adopting experimental design.

877. Disposition of Comments for Interventions for the Prevention of Posttraumatic Stress Disorder (PTSD) in Adults After Exposure to Psychological Trauma (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-adults-trauma-interventions_disposition-comments.pdf
     April 02, 2013 - Instead, we assessed critical domains for each study design (see methods).

878. CER 173 Executive Summary: Diabetes Medications for Adults With Type 2 Diabetes: An Update (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/diabetes-update-2015_executive.pdf
     January 01, 2015 - • We included randomized trials that used a crossover design, with some exceptions. • Only studies … Because of low event rates and sample size, the pooled studies for most comparisons on these outcomes … considered current. 22 Database requirements for such observational studies include sufficient sample … size, followup of patients over time, detailed data on treatments (including doses and duration),

879. Abnormal-Uterine-Bleeding Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/abnormal-uterine-bleeding_executive.pdf
     March 01, 2013 - used established concepts of the quantity of evidence (e.g., numbers of studies, aggregate ending-sample … sizes), the quality of evidence (i.e., from the quality ratings of individual articles), directness

880. Maternal, Fetal, and Child Outcomes of Mental Health Treatments in Women: A Systematic Review of Perinatal Pharmacological Interventions (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/cer-236-maternal-fetal-child-outcomes-disposition-comments.pdf
     April 15, 2021 - estimates)” when talking about precision in general terms or “(i.e., the results relied on small sample … sizes, few events, or had wide CIs suggestive of both benefits and harms) when talking about imprecision … lack of adjustment for confounding, were any of the comparison studies sufficiently large in their sample … size or sufficiently reasonable in their design that they offer any useful information to clinicians