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Total Results: 969 records

Showing results for "design sample size".

221. Project Title: Evaluation of Suspicious Skin Lesions Using Non-Invasive Diagnostic Techniques, a Technical Brief (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/skin-lesions-evaluation_research-protocol.pdf
     August 23, 2010 - information: i Indication/patient inclusion criteria ii Type of techniques/modalities iii Study design … , we will extract data on the citation (first author name, journal and year of publication), study design … ., of studies with a specific characteristic), or medians and interquartile range (e.g., for study sample … sizes), when appropriate.

222. Disposition of Comments: CER 227 Noninvasive Nonpharmacological Treatment for Chronic Pain (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/cer-227-noninvasive-nonpharm-chronic-pain-comments.pdf
     April 16, 2020 - ) [3] Ineligible study design (narrative review article) [4] Ineligible study design (book chapter/ … narrative review) [5] Ineligible study design (observational cohort) [6] Ineligible study design ( … These challenge include consistency in research design and protocol, methodology, low sample size, … size to evaluate this. … - size to evaluate the differential impact of conditions and factors is needed.....")

223. Rapid Response: Efficacy of Dental Services for Reducing Adverse Events in Those Receiving Chemotherapy for Cancer (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/rapid-response-chemotherapy-dental.pdf
     July 01, 2023 - The four prospective cohort studies had total sample sizes ranging from 255 to 411.30, 39, 40, 62 The … The largest of these had a sample size of 2216 patients who were followed at a single cancer center … The other four studies having retrospective cohort designs had smaller sample sizes, with the number … This study was limited by the small sample size and multiple QOL scales that were administered (with … The evidence base includes 27 primary studies that vary considerably in their sample sizes, study designs

224. The Effectiveness of Indoor Allergen Reduction and the Role of Bronchial Thermoplasty in the Management of Asthma (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/asthma-nonpharmacologic-treatment_research-protocol.pdf
     October 04, 2016 - Study Design Criteria Systematic reviews, meta-analyses, and randomized controlled trials (RCTs) will … certainty surrounding an effect estimate with respect to a given outcome, based on the sufficiency of sample … size, number of events, and width of confidence intervals relative to a clinically important effect … Small sample size may be an important limitation in many studies, and addressing this through meta-analysis … may be challenging if there is substantial heterogeneity in study design, intervention, and outcome

225. EHC Research Protocol: Management of Colonic Diverticulitis (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/diverticulitis-research-protocol.pdf
     January 01, 2019 - size may be adjusted upward depending on the number of available studies … full colon) • Elective CT colonography * The minimum sample … size may be adjusted upward depending on the number of available studies … size may be adjusted upward depending on the number of available studies … size may be adjusted upward depending on the number of available studies

226. Liver-Cancer Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/liver-cancer_executive.pdf
     October 01, 2014 - , year, setting, country, sample size, method of data collection (retrospective or prospective), eligibility … comparable and could provide a meaningful combined estimate (based on the variability among studies in design … according to the reference standard used and on domains related to risk of bias, aspects of study design … We found that 119 studies avoided use of a case-control design, 151 used blinded ascertainment, and … 75 used a prospective design.

227. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/cancer-ovarian-contraceptives_research-protocol.pdf
     March 13, 2012 - size ≥ 100 subjects for nonrandomized studies. … Exclusion criteria: • Editorials, letters to the editor, or exploratory studies with inadequate sample … size • Non–systematic reviews B. … higher quality and sensitivity analysis used to address the potential impact of issues such as small sample … size or potential bias on model output.

228. Glaucoma-Screening Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/glaucoma-screening_executive.pdf
     April 01, 2012 - We searched the literature without imposed language, sample size, or date restrictions. … The sample size ranged from 26 to 95 participants with glaucoma or suspected glaucoma and 37 to 128 … Three studies examined the GDx with enhanced corneal compensation (ECC).59,86,87 The sample sizes of … The range of sample size was 25 to 174 glaucomatous eyes and 15 to 164 healthy eyes. … , as an RCT design would allow investigators to enroll participants with similar risk profiles and

229. chronic-fatigue-protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/chronic-fatigue_research-protocol.pdf
     May 01, 2014 - , year, setting, country, sample size, eligibility criteria, population and clinical characteristics … They will have a serious or “fatal” flaw in design, analysis, or reporting; large amounts of missing … The results of these studies will be least as likely to reflect flaws in the study design as the true … of symptoms; criteria used for diagnosis, presence of medical and psychiatric co- morbidities); the sample … size of the studies; and clinical settings (e.g., primary care, specialty setting) and countries (e.g

230. PROPOSALS FOR A PHASED EVALUATION OF (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/medical-tests-proposals_research.pdf
     January 01, 2009 - The benefits from testing may be limited to a subset of those tested, so sample size requirements can … Study design in the evaluation of breast cancer imaging technologies. … Design of evaluations of imaging technologies: development of a paradigm. … Empirical evidence of design-related bias in studies of diagnostic tests. … Sample sizes of studies on diagnostic accuracy: literature survey. BMJ 2006;332:1127-1129. 34.

231. PROPOSALS FOR A PHASED EVALUATION OF (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/whitepaper3-lijmer02262010-2.pdf
     January 01, 2009 - The benefits from testing may be limited to a subset of those tested, so sample size requirements can … Study design in the evaluation of breast cancer imaging technologies. … Design of evaluations of imaging technologies: development of a paradigm. … Empirical evidence of design-related bias in studies of diagnostic tests. … Sample sizes of studies on diagnostic accuracy: literature survey. BMJ 2006;332:1127-1129. 34.

232. Using Deliberative Methods to Engage Patients, Consumers, and the Public (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/deliberative-methods-how-to-webinar-text-only.pdf
     December 06, 2011 - Now, I will transition to Ela, who will tell you more about how to best design and implement these methods … It is important to consider diversity in all aspects of the design – including the participant recruitment … Participants were asked to design a benefit package of social or health interventions to improve health … Rather, the world of benefits design required consideration of the elements of coverage like the ones … State waivers (when states request a waiver to establish their own design) 3.

233. Using Deliberative Methods to Engage Patients, Consumers, and the Public (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/deliberative-methods-how-to-webinar-text-only.pdf
     December 06, 2011 - Now, I will transition to Ela, who will tell you more about how to best design and implement these methods … It is important to consider diversity in all aspects of the design – including the participant recruitment … Participants were asked to design a benefit package of social or health interventions to improve health … Rather, the world of benefits design required consideration of the elements of coverage like the ones … State waivers (when states request a waiver to establish their own design) 3.

234. Cancer-Pancreas Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/cancer-pancreas_research-protocol.pdf
     August 09, 2013 - Study Design Criteria 1. Key Questions on single-test accuracy. … This design permits a comparison of how the choice of test may influence management and/or survival … Any study design will be accepted. Patient Criteria 1. … Empirical evidence of design-related bias in studies of diagnostic tests. … Was an a priori design or protocol provided? 2. Was a comprehensive search strategy performed?

235. Living Systematic Review on Cannabis and Other Plant-Based Treatments for Chronic Pain: Surveillance Report 3 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-250-cannabis-surveillance-report-3_0.pdf
     May 01, 2022 - , year, setting, country, sample size, eligibility criteria, population and clinical characteristics … Publication bias (small sample size bias) is assessed using funnel plots when there are eight or more … the strength of evidence (SOE), the precision of evidence was downgraded two levels if inadequate sample … size (optimal information size) and the 95% confidence interval includes both potentially meaningful … Exclusion reason: Ineligible study design 185.

236. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/preterm-birth-terbutaline-pump_research-protocol.pdf
     October 18, 2010 - Further, the two RCTs included in a published Cochrane review had small sample sizes (52 and 42 participants … Observational studies identified through our scoping literature search consistently have larger sample … sizes than published RCTs and in some cases include longer term outcomes. … size x x x Selection of participants x Compliance with treatment regimen … Assessment of Loss to Followup: Since the reported sample size could represent either the total number

237. Dietary Total Fat Intake and Dietary Polyunsaturated Fatty Acid Intake and Child Growth and Development Outcomes: A Systematic Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/child-growth-development-outcomes-protocol-amended.pdf
     November 18, 2024 - Significant flaws that imply biases of various kinds that may invalidate results; “fatal flaws” in design … heterogeneity of sensitivity and subgroup analyses (e.g., differences by study risk of bias, study design … 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 … Therefore, study questions, design, and methodological approaches do not necessarily represent the views

238. Therapies for Clinically Localized Prostate Cancer: Evidence Summary (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/prostate-cancer-therapies-summary.pdf
     September 01, 2020 - ‡The node size reflects the sample size.

239. Disposition of Comments Report for Childhood Obesity Prevention Programs: A Comparative Effectiveness Review and Meta-Analysis (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/obesity-child_disposition-comments.pdf
     June 10, 2013 - size, longer follow up, with more vigorous and higher intensity intervention approaches were more likely … size considered in the selection of studies. … There are some studies that, although well designed, have too small sample sizes. … Perhaps One could define a lowest cutoff for sample size, or a stratification scheme. … This was a pre post study design with no control group.

240. Dietary Total Fat Intake and Dietary Polyunsaturated Fatty Acid Intake and Child Growth and Development Outcomes: A Systematic Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/wysiwyg/pdf/child-growth-development-outcomes-protocol.pdf
     August 19, 2024 - except hospital and acute care will be included • Inpatient; hospital and acute care Study Design … Significant flaws that imply biases of various kinds that may invalidate results; “fatal flaws” in design … 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 … Therefore, study questions, design, and methodological approaches do not necessarily represent the