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Total Results: 1,313 records

Showing results for "size".

1221. Research White Paper - Assessing the Predictive Validity of Strength of Evidence Grades: A Meta-Epidemiological Study (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/grades-predictive-values_white-paper.pdf
      September 01, 2015 - A true effect can be viewed as the effect size that we would observe if a study had an infinitely large … sample size (and thus no sampling error).8 Realistically, however, a true treatment effect can rarely … Sample size calculations indicated that 130 documents would provide 80 percent power for a 4 x 2 chi-square … difference of bone mineral density % change: hip Study name Statistics for each study Sample size

1222. Disposition of Comments for Use of Natriuretic Peptide Measurement in the Management of Heart Failure (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/heart-failure-natriuretic-peptide_disposition-comments.pdf
      November 20, 2013 - Left atrial size of evidence of venous congestion are superior to LVEF in detecting dysfunction. … depending on the completeness of relevant data for studies of BNP (age, sex, symptoms, LVEF, left atrial size … Rev 7 ES On KQ3 on page ES-11, the sample size are confusing. … Similarly, for morbidity outcomes on ES- 12, did the sample size refer to the number of studies? … The performance of tests of publication bias and other sample size effects in systematic reviews of

1223. 8 (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/methodsguide_chou_assessing_harms_when_comparing.pdf
      November 01, 2008 - If large, higher quality studies are available, it could be reasonable to specify a minimum sample size … Association between unreported outcomes and effect size estimates in Cochrane meta-analyses [letter … quality criteria) Studies meet a defined threshold for duration of followup Studies meet a sample size

1224. Colorectal-Cancer-Liver-Metastases-Therapies Executive (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/colorectal-cancer-liver-metastases-therapies_executive.pdf
      December 01, 2012 - The volume of disease in these patients is small, either in terms of lesion size or number of lesions … clinical practice is limited by the poor characterization of the patient populations (e.g., number and size … This is particularly important for patient characteristics such as size and number of metastases and … The following factors should be collected and considered in future studies: number and size of lesions … status LDH CEA Clinical risk scores (e.g., Fong)95 Tumor Characteristics Location of tumor Size

1225. Meditation Research-Protocol (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/meditation_research-protocol.pdf
      October 17, 2012 - Source: www.effectivehealthcare.ahrq.gov Published Online: October 17, 2012 Evidence-based Practice Center Systematic Review Protocol Project Title: Meditation Programs for Stress and Well-Being Amendment Date(s) if applicable: October 10, 2012 (Amendments Details–see Section VII) I. Background Me…

1226. 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 - Was each individual trial weighted equally, or were trials weighted in some way by sample size? … for those randomized to transfusion is small, it should also be acceptable to use a modifier for the size … Its weight is due to its size and underlying risk (control arm mortality rate). … the only impact of the longer follow-up is then a greater number of events without change in effect size … alternative method, which is considered to be robust and valid regardless of event rate or sample size

1227. DST_Draft_Protocol_Nov_4_2013_clean (2) (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/cancer-decision-support-tools_research-protocol.pdf
      November 12, 2013 - other effectiveness reviews and will include elements that address population characteristics, sample size

1228. Appendicitis Research-Protocol (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/appendicitis_research-protocol.pdf
      December 09, 2013 - reviews of diagnostic tests and will include elements that address population characteristics, sample size

1229. Treatment Strategies for Women With Coronary Artery Disease: Future Research Needs (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/cad-women-treatment-future_research.pdf
      February 01, 2013 - : (preferable) large long-term clinical trial with women- only enrollment or of large enough sample size … The study was limited by a small overall size, and it did not find significant differences in outcomes … : (preferable) large long-term clinical trial with women-only enrollment or of large enough sample size … Considerations include: • Sample size required for a particular outcome and to include a representative … of interest relatively small, adversely affecting the sample size

1230. Development and Usability Testing of EPC Evidence Review Dissemination Summaries for Health Systems Decisionmakers (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-usability-testing.pdf
      November 01, 2018 - value for end- users; however, consideration should be given to their purpose and format (e.g., “one size … Provide the hyperlink in a size and location such that it will not be overlooked. … Instead, many thought that the bubbles’ size was related to the strength of evidence. … Like, the size of the circle could be about which one has the best evidence associated with it. … is what you’re trying to determine, based on the size.”

1231. Disposition of Comments for Comparative Effectiveness Review 133 Transitional Care Interventions To Prevent Readmissions for People With Heart Failure (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/heart-failure-transition-care_disposition-comments.pdf
      May 27, 2014 - which is relevant in situations where the number of studies available for analysis and/or sample size … We have also added footnotes to explicitly say what the notations are (e.g., N= sample size). … The number and size of studies are included in each meta-analyses and also in summary tables. … There is the very strong (though small study size) effect from the Naylor study. … Yet, the conclusion seems to be that since the overall effect size was consistent with 3 and 6 months

1232. Colorectal-Surgery-Preparation Executive (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/colorectal-surgery-preparation_executive.pdf
      April 01, 2014 - number of available studies, the number of studies contributing information for each outcome, sample size … and suggested that randomized sequence generation methods did not have a major impact on the effect size … This uncertainty is explained by the relatively small sample size of included studies and the relative

1233. Blood-Clots-Hip-Knee-Surgery Executive (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/related_files/blood-clots-hip-knee-surgery_executive.pdf
      March 01, 2012 - In evaluating all KQs, randomized controlled trials (RCTs) of any size or controlled observational studies … Therefore observational studies would need to be of larger size to provide additional valuable information … Observational studies were assessed for sample size, participant selection method, exposure measurement … duration with clinically relevant treatment modalities, assessed adverse events, had an adequate sample size … Both of the available trials were small in size leading to limited power to detect differences between

1234. Psychological and Pharmacological Treatments for Adults with Posttraumatic (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/ptsd-adult-treatment-update_research-protocol.pdf
      December 31, 2017 - settings Other settings Study design KQs 1–3: Randomized controlled trials (RCTs) of any sample size … nonrandomized controlled trials, prospective cohort studies with an eligible comparison group and a sample size … of at least 500,a case-control studies with a sample size of at least 500a All other designs and … studies using included designs that do not meet the sample size criterion Language Studies published … For KQ 4, we have chosen a sample size cutoff of 500 for prospective cohort studies and case-control

1235. Presentation of Future Research Needs (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/presentations-future_research.pdf
      April 01, 2012 - perform power analyses for specific research designs for a range of assumptions and compare with the size … These criteria include resource use, size, and duration; availability of data and ability to recruit … a recommendation, the panel included a rationale and did not include specifics in terms of sample size … direct way to address less common comorbidities; allows for adjustment for confounding; sample size

1236. EHC Research Protocol: Management of Colonic Diverticulitis (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/diverticulitis-research-protocol.pdf
      January 01, 2019 - patients not requiring surgery) * The minimum sample size … colon) • Elective CT colonography * The minimum sample size … reports (and series of case reports) * The minimum sample size … reports (and series of case reports) * The minimum sample size

1237. Systematic Review Update: Noninvasive Nonpharmacologic Treatment for Chronic Pain (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/nonpharm-treatment-chronic-pain-protocol.pdf
      December 11, 2018 - into categories that include but are not limited to: study design, year, setting, country, sample size … The feasibility of a quantitative synthesis will depend on trial size, the number and completeness of … heterogeneity across studies with regard to patient population, intervention and outcomes, and sample size … When quantitative synthesis is not possible, sample size and assessment of variance within individual

1238. Long-Term Drug Therapy and Drug Holidays for Osteoporotic Fracture Prevention (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/research-protocol-osteoporosis_2.pdf
      October 05, 2018 - o Rare harms (i.e., AFF, ONJ, Afib): Sample size must be >100 and may include case-control, retrospective … o Nonrare harms: Sample size must be >1000 and limited to prospective cohort studies. … methodological heterogeneity (participant population, intervention, outcome measures) and variation in effect size … direct link between intervention and outcome); (3) consistency (similarity of effect direction and size

1239. Evidence-based Practice Center Systematic Review Protocol (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/pdf/ace-inhibitor-arb-update_research-protocol.pdf
      May 07, 2010 - 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 re-visit

1240. Treatment of Osteoarthritis of the Knee: An Update Review (pdf file)
      effectivehealthcare.ahrq.gov/sites/default/files/osteoarthritis-knee-update-executive-170505.pdf
      May 01, 2017 - relationship between outcomes measured and the outcomes of interest, and magnitude of the effect size … of the knee: N = 28 • Not on treating/managing OA of the knee: N = 6 • Intervention* with a sample size … studies showed no effect of long-term treatment on function compared with control (pooled effect size … no effect of long-term glucosamine treatment compared with control on pain (n=1007; pooled effect size … • Small sample size.