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Total Results: 969 records

Showing results for "design sample size".

101. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/juvenile-arthritis-dmards_research-protocol.pdf
     March 09, 2010 - Because JIA is rare, assembling a large sample size is challenging. … Therefore, we will not restrict studies based on sample size alone. … Initially, data will be synthesized qualitatively with a particular focus on design issues that may … Design issues, including confounding, will be examined as a source for heterogeneous results. … Therefore study questions, design and/or methodological approaches do not necessarily represent the

102. 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 - Irritability responsible for withdrawals (n=6) in one RCT; SOE is low given small sample size Atomoxetine … 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 … size and durability of effects. … Sample size and participant followup were frequently insufficient to allow firm conclusions.

103. Rapid Evidence Product: Misuse of ADHD Prescription Stimulants in Adults (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/misuse-adhd-prescription-rapid-research.pdf
     July 01, 2025 - Administered in Introductory Psychology class; not 11 Study Data Source Sample Size Year … This study has unclear risk of bias, as the sample size was small, only 13.8 percent of respondents … occupational or physical task performance Timing 2004 to present Published before 2004 Study Design … 21 Exclude-Timing (older undergraduate studies): n = 22 Exclude-Setting not US: n = 33 Exclude-Design … size.

104. Comparative Effectiveness of Therapies for Women with Noncyclic Chronic Pelvic Pain (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/pelvic-pain_disposition-comments.pdf
     January 01, 2012 - The sample size calculations provided were particularly helpful. … size. … As the report notes in the Methods section, we set a sample size cut off of 50 for treatment studies … Even using a generous sample size requirement of 50, few studies included enough participants. … of interventions is planned in the study design.

105. Disposition of Comments Report for Comparative Effectiveness Review 128 Oral Mechanical Bowel Preparation for Colorectal Surgery (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/colorectal-surgery-preparation_disposition-comments.pdf
     April 30, 2014 - We have provided additional study design recommendations, particularly with respect to sample size … We have clarified that we were referring to the majority of studies when discussing small sample sizes … We have provided details about the sample size requirements for such a trial. … We believe that the required sample size is not prohibitive (even for a small size consortium) given … sizes will need to be large.

106. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/rheumatoid-arthritis-medicine_research-protocol.pdf
     December 06, 2010 - criteria) Original research; eligible study designs include: • Randomized controlled trials with a sample … size ≥100 • Nonrandomized controlled trials • Observational studies with a sample size ≥100: prospective … Case report • Review articles • Editorials • Letters to the editor • Studies with insufficient sample … sizes http://www.effectivehealthcare.ahrq.gov/� Source: www.effectivehealthcare.ahrq.gov … information for each article, including study design, methods, and results.

107. Treatment of Osteoarthritis of the Knee: An Update Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/osteoarthritis-knee-update-disposition-archived.pdf
     May 04, 2017 - We presented the sample sizes in the narrative descriptions of the studies, as well as in the evidence … initially excluded for smaller sample sizes and included all studies that had been excluded only for … Noting the total sample size is not sufficient. … We reincluded all studies that had been excluded solely for small sample size, with the exception … We reincluded all studies that had been excluded solely for small sample size, with the exception

108. Treatment of Osteoarthritis of the Knee: An Update Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/osteoarthritis-knee-update-disposition.pdf
     May 04, 2017 - We presented the sample sizes in the narrative descriptions of the studies, as well as in the evidence … initially excluded for smaller sample sizes and included all studies that had been excluded only for … Noting the total sample size is not sufficient. … We reincluded all studies that had been excluded solely for small sample size, with the exception … We reincluded all studies that had been excluded solely for small sample size, with the exception

109. Supplemental Project To Assess the Transparency of Reporting for Trials Evaluating Treatment for Infertility (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-infertility_research.pdf
     June 01, 2017 - abstracted were: • Date of completion • Number of study arms • Intervention description • Study design … Two trials with a combined sample size of 340 patients were completed more than 3 years ago, indicating … • The study design and number of study arms matched for all eight studies. … Three studies did not report the sample size in CT.gov and thus were classified as discrepant. … Both trials were applicable to KQ 1 and had a combined sample size of 340 patients.

110. Dietary Saturated Fat Replacement and Plasma Lipid and Cardiovascular Events (pdf file)
     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 … size may be altered depending on the number of eligible studies found … maximum prediction score is <0.40, we will screen at least 400 additional consecutive citations (this sample … size is chosen because the upper 97.5% confidence interval bound for a proportion of 0/400 is less … sizes, overall methodological limitations, consistency, precision, directness, SoE rating, and conclusions

111. Management of Renal Masses and Localized Renal Cell Carcinoma: Current State of the Evidence (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/renal-cancer_clinician.pdf
     July 01, 2017 - ��� Local recurrence-free survival 2 (217) Better results with RN, but all studies had a small sample … size.

112. Dietary Intake of Polyunsaturated Fatty Acids and Plasma Lipid and Cardiovascular Events (pdf file)
     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 … size may be altered depending on the number of eligible studies found … size is chosen because the upper 97.5% confidence interval bound for a proportion of 0/400 is less … following for each life stage (as feasible), each analyzed PUFA, and each outcome: study types and sample … sizes, overall methodological limitations, consistency, precision, directness, SoE rating, and conclusions

113. FRN 40 - Screening for Methicillin-Resistant Staphylococcus aureus (MRSA): Future Research Needs (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/mrsa-screening_research.pdf
     June 01, 2013 - size to minimize selection bias. … sizes, and multiple sites may be needed. … size. … Requires planning to balance baseline characteristics and sample size considerations to achieve adequate … size.

114. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/progestogens-preterm-birth_research-protocol.pdf
     June 01, 2010 - sizes must be appropriate for study question addressed in paper; single case reports or small case … After reviewing a sample of relevant articles, the methods lead and the content lead will design three … size, and study type). … sizes); 2) the quality of evidence (from the quality ratings on individual articles); and 3) the coherence … Therefore, study questions, design and/or methodological approaches do not necessarily represent the

115. Comparative Effectiveness Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/osteoarthritis-pain-2006_appendixes.pdf
     January 01, 2006 - If relevant, the tables or text should include information on study design, sample size in each study … In addition, the individual evaluations should be weighted in some way (e.g., according to sample size … GI Safety in observational studies 149 Author, Year Sample size Population Duration (days … CV Safety in observational studies Author, Year Data source Sample size Population Exposure … CV Safety in observational studies Author, Year Data source Sample size Population Exposure

116. Asthma-Immunotherapy-2011 Research (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/asthma-immunotherapy-2011_research.pdf
     January 01, 2011 - Study design and setting. … Sample size justification 5±2 Overall estimation of internal validity** 5±2 5±2 Overall estimation … Sample size and optimal designs for reliability studies. … Design and hypothesis specific. Assessment of temporality. … Size Sample size justification.

117. Hemorrhage-Postpartum Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/hemorrhage-postpartum_executive.pdf
     April 01, 2015 - sizes. … sizes and inconsistency in interventions. … Four studies of rFVIIa reported on thrombotic events, but sample sizes were small and studies were … A higher SOE is not possible due to the lack of comparisons in this literature and small sample sizes … Some studies reported an association between rFVIIa and thromboembolic events, but sample sizes were

118. Colorectal-Surgery-Preparation Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/colorectal-surgery-preparation_research-protocol.pdf
     March 26, 2013 - sizes are unlikely to provide estimates of treatment effects that are adequately precise. … sizes are unlikely to provide estimates of treatment effects that are adequately precise. … Even if the outcome rate is 10 percent (i.e., quite high), the sample size needs to be >400 patients … sizes; as such, they are unlikely to affect our conclusions. … reviews and will include elements that address population characteristics, sample size, study design

119. Abnormal-Uterine-Bleeding Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/abnormal-uterine-bleeding_research-protocol.pdf
     November 21, 2011 - We will not stipulate a minimum study sample size for included clinical research studies. … size for evaluating treatment effectiveness. … Ideally, studies will include an explanation of the sample size analysis (e.g., power calculation … Assessments of individual study eligibility based upon sample size will be conducted and fully described … sizes), the quality of evidence (i.e., from the quality ratings on individual articles), and the

120. Ced-Topic-Refinement (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ced-topic-refinement.pdf
     November 01, 2022 - size. … size as required by the question. … size as required by the question. … size as required by the question. 1.9 H. … size as required by the question.