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Total Results: 962 records

Showing results for "design sample size".

161. Ptsd-Adult-Treatment Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-adult-treatment_executive.pdf
     April 01, 2013 - size, prospective cohort studies with a sample size of at least 500, and case-control studies with … a sample size of at least 500. … 77a # of records excluded: 2,521 # of full-text articles excluded, with reasons: 380 Wrong study design … For KQs 1 through 5, we included RCTs with no sample size limit; we did not allow for inclusion of observational … size of 500 or greater.

162. DEcIDE 32: The Incident User Design in Comparative Effectiveness Research (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/incident-user-design_research.pdf
     May 01, 2012 - design. … We also reviewed methods papers on the incident user design. … Issues That Motivate the Incident User Design Investigators struggle to design non-randomized studies … The Incident User Design Complements Propensity Score Analyses The incident user design results in … incident user design results from the other design and analysis options that it allows, which may improve

163. Patient-Centered-Medical-Home Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/patient-centered-medical-home_executive.pdf
     July 01, 2012 - Study design 2. PCMH components 3. Settings (e.g., practice size, geographic location) 4. … Study design KQ 1, KQ 4: Patient or cluster RCT, nonrandomized clustered controlled trial, controlled … & Magnitude of Effecta,b,c] Number of Studies (Subjects) SOE Domain– Risk of Bias: Study Design … & Magnitude of Effecta,b,c] Number of Studies (Subjects) SOE Domain– Risk of Bias: Study Design … Building the Evidence Base for the Medical Home: What Sample and Sample Size Do Studies Need?

164. Disposition of Comments for Evidence Report 221 Behavioral Programs for Diabetes Mellitus (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/diabetes-behavior-programs_disposition-comments.pdf
     September 28, 2015 - Peer Reviewer 1 Methods It is not clear whether the mean differences were weighted by sample size and … If not, then small and large studies Studies were weighted by sample size and variance. … Peer Reviewer 4 Results Table 10, I would suggest to adding the sample size in each node. … We have added the sample sizes. … Some nodes had very few studies, small sample sizes, and/or wide credibility intervals, thus we did

165. Trauma-Interventions-Maltreatment-Child Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/trauma-interventions-maltreatment-child_executive.pdf
     April 01, 2013 - was largely attributable to most bodies of evidence consisting of only one trial, many with small sample … sizes. … Sample sizes are commonly very small. … Statistical Considerations: Even with concerns about limited sample sizes and attrition, few studies … sizes and extensive heterogeneity of design, definitions, and outcomes, among other considerations

166. Depression-Treatment-Ssri Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/depression-treatment-ssri_executive.pdf
     April 01, 2012 - Inadequate sample size was a factor in many studies. … Adequate sample size was an issue in these studies. … Sample sizes in future research studies should be sufficient to establish important margins of difference … Extant studies are limited in type of agents utilized, sample sizes, and population characteristics … A second study, a pilot with small sample size evaluating dose escalation, showed no effect.

167. Mental Health and Occupational Stress in the Emergency Medical Service and 911 Workforce: A Systematic Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ems-911-workforce-mental-health-protocol-amendment.pdf
     January 22, 2024 - In terms of study design, we expect to include a variety of non-randomized study designs because very … We will not restrict by sample size or study quality. … Key Questions No sample size restriction For Key Question 1 for EMS populations, we will After … No sample size restriction will apply to studies of 911 populations. … Because KQ 1 is largely about epidemiology (incidence, prevalence, and severity), a sample size

168. Masks-Surveillance-2-Appendix-Table-A-2 (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/masks-surveillance-2-appendix-table-a-2.xlsx
     March 01, 2020 - Masks in the Community Virus Strain Author Publication Year Title Date Retrieved Source Link/URL Study Design … Study Dates Geographic Setting Setting Inclusion Criteria Sample Size Age (mean, years) Female (%) Definition

169. Masks-Appendix-Table-B-2-Surveillance-Report (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/Masks-appendix-table-b-2-surveillance-report.xlsx
     March 01, 2020 - Masks in the Community Virus Strain Author Publication Year Title Date Retrieved Source Link/URL Study Design … Study Dates Geographic Setting Setting Inclusion Criteria Sample Size Age (mean, years) Female (%) Definition

170. Future Research Needs for the Comparative Effectiveness of Breathing Exercises and/or Retraining Techniques in the Treatment of Asthma (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/asthma-treatment-future_research.pdf
     September 01, 2012 - Studies with larger sample sizes, including multicenter trials; 3. … Additionally, it was noted that all study designs should account for the need for larger sample sizes … However, such trials would need large sample sizes in order to account for presumably small-to-modest … Studies with larger sample sizes, including multicenter trials; 3. … Additionally, it was noted that all study designs should account for the need for larger sample sizes

171. Supplemental Project To Assess the Transparency of Reporting Requirements for Studies Evaluating the Effectiveness of Treatment Options for Symptoms of Diabetic Peripheral Neuropathy (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/transparency-neuropathy_research.pdf
     March 01, 2018 - Comparison of the sample size, primary outcome, and withdrawals due to adverse events reported in the … Data extraction elements Trial design Design (parallel or crossover) Number of groups Trial start … Two reviewers compared the planned sample size, the primary outcome, and the analysis plan specified … • Comparison of prespecified statistical plan • Sample sizes, total. … Sample Size Followup Published literature only Karmakar, 201435 Not found NA NA NA 28 6 weeks

172. Single-arm studies in comparative effectiveness reviews (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/single-group-studies_white-paper.pdf
     January 01, 2013 - authors planned to use single group studies, selection criteria for single group studies (minimum sample … size, followup duration, or ―other‖), whether the results of different single group studies were … However, this interpretation is limited by the small sample size. F Figure 2. … in the randomized two arm trial designs (though the two arm studies required a 2–4 fold increased sample … size). 24 A third simulation study compared optimal single group and randomized phase 2 designs

173. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/undescended-testicle_research-protocol.pdf
     September 02, 2011 - publication, study location (e.g., country, city, state) and time period, population description, sample … size, and study type (e.g., randomized controlled trial, prospective observational study, etc.). … 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 … Therefore study questions, design and/or methodological approaches do not necessarily represent the

174. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/bundled-payments-quality-effects_research-protocol.pdf
     June 23, 2011 - Subsets of the bundled payment systems in KQ 1, characterized by the following key design features: … The impact of these design features are addressed by KQ 2. … represent most or all of the reviewed studies), still other additional elements will be considered: o Sample … size. … Therefore study questions, design and/or methodological approaches do not necessarily represent the

175. Ced-Appendix-3 (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ced-appendix-3.xlsx
     June 24, 2022 - size NESTcc Protocol The protocol describes the study registration process NESTcc Protocol The protocol … CMS Design_precision Larger sample sizes in studies to demonstrate both statistically significant as … definine patients characteristics and inclusion and exclusion criteria CMS Design_precision Larger sample … sizes in studies to demonstrate both statistically significant as well as clinically significant outcomes … size NESTcc Protocol The protocol describes the study registration process NESTcc Protocol The protocol

176. Obesity-Child Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/obesity-child_executive.pdf
     March 31, 2010 - We did not exclude studies based on study sample size (Table A). … One reason for the nonsignificant effect on weight outcomes might have been that the sample sizes were … There are many differences across studies in term of settings, design, sample size and characteristics … However, due to the limited sample size, we could not conduct further stratifications to explore the … Studies With High Statistical Power We need more studies with large sample sizes and adequate length

177. Pharmacologic and Nonpharmacologic Treatments of Post-Traumatic Stress Disorder (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-protocol.pdf
     July 10, 2018 - • Study Design—randomized controlled trials (RCTs) published from January 1, 1980 through present … Randomized controlled trials Studies that do not have a randomized controlled trial design. … , year, setting, country, sample size, eligibility criteria, study characteristics, population characteristics … Study design* j. Number of enrolled participants k. Diagnostic instrument(s) l. … Randomized controlled trials Study Design Non-English language articles English language articles

178. Pharmacologic and Nonpharmacologic Treatments of Post-Traumatic Stress Disorder (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/ptsd-protocol.pdf
     July 10, 2018 - • Study Design—randomized controlled trials (RCTs) published from January 1, 1980 through present … Randomized controlled trials Studies that do not have a randomized controlled trial design. … , year, setting, country, sample size, eligibility criteria, study characteristics, population characteristics … Study design* j. Number of enrolled participants k. Diagnostic instrument(s) l. … Randomized controlled trials Study Design Non-English language articles English language articles

179. Core-Needle Biopsy for Breast Abnormalities (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/breast-biopsy-update_clinician.pdf
     May 01, 2016 - biopsies were deemed to have moderate to high risk of bias because of characteristics related to their design

180. Outcome Definition and Measurement in Observational Comparative Effectiveness Research
     effectivehealthcare.ahrq.gov/sites/default/files/outcome-definition-and-measurement-chapter-6.pptx
     January 01, 2013 - frequency and length of followup assessments to be included in the study after initial treatment, and the sample … size, which is influenced by the expected frequency of the outcome in addition to the magnitude of relative … The study power for a given sample size may be increased when such composite measures are used as compared … Study Design and Analysis (1 of 2) Study Design and Analysis (1 of 2) Avoidance of Bias in Study … Study Design and Analysis (2 of 2) Study Design and Analysis (2 of 2) Study Period and Length of