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Total Results: 962 records

Showing results for "design sample size".

181. Disposition of Comments: CER 224, Treatment of Depression in Children and Adolescents: A Systematic Review (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-224-depression-children-comments.pdf
     April 10, 2020 - size. … and sample size" column). … I may have missed where sample sizes were characterized—so was surprised in Table 7 to learn that Ns … There is no distinction between sample sizes in the hundreds and those with 10 or so per group- all … It emphasizes the adequacy of the sample size to rule out spurious associations and results that are

182. Dementia-Nursing-Home-Characteristics Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/dementia-nursing-home-characteristics_executive.pdf
     October 01, 2012 - Practice Center Program.12 This approach incorporates four key domains: risk of bias (including study design … full-text articles excluded, with reasons: 772 Wrong PICOTS: 301 Wrong publication type/study design … : 289 Wrong country: 132 Small sample size: 28 Data prior to 1990: 7 Poor quality: 15 … size. … size.

183. Communication and Dissemination Strategies To Facilitate the Use of Health-Related Evidence (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/medical-evidence-communication_executive.pdf
     November 01, 2013 - Program.21,22 The EPC approach incorporates four required domains: risk of bias (including study design … Sample sizes ranged from 174 participants to 5,500 participants. … Sample sizes ranged from 114 participants to 3,293 participants. … Sample sizes ranged from 120 participants to 2,944 participants. … Methodological considerations—In the included trials, there was sometimes a mismatch between study design

184. S81 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/s81.pdf
     October 01, 2007 - Research Design: Retrospective cohort design. … Thus, HOCTA models seek to maximize prediction of both classes, rather than the class with the largest sample … size or the greatest variance. … We expect increased stability with adequate sample sizes. … Fewer cells in the HOCTA design matrix highlights the suitability of HOCTA for modeling data with sparse

185. Medical-Evidence-Communication Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/medical-evidence-communication_research-protocol.pdf
     July 31, 2012 - Turkey, Australia, Canada, Japan, and South Africa Any other country not specified for inclusion Sample … sizes • N ≥ 100 total individuals in the study • No limits on size of clusters • N < 100 total individuals … sizes greater than 100. … Study objectives • Intervention and comparators • Setting(s) • Duration • Outcomes measured • Sample … size • Eligibility criteria • Sampling strategy • Units and methods of randomization http://www.effectivehealthcare.ahrq.gov

186. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/labor-nitrous-oxide_research-protocol.pdf
     August 24, 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

187. Untitled (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/autism-medical-update_research-protocol.pdf
     February 16, 2016 - Eligible RCTs must have a total minimum sample size of 10. … We will require a higher minimum sample size (n=20) for other comparative studies as they typically … We will extract study and design characteristics (e.g., study design, year,   Source: www.effectivehealthcare.ahrq.gov … 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   Source: www.effectivehealthcare.ahrq.gov

188. Treatment of Osteoarthritis of the Knee: An Update (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/osteoarthritis-knee-update_research-protocol.pdf
     June 15, 2016 - systematic reviews of interventions for treatment of OA of the knee that inclusion of studies with sample … sizes less than 50 per group significantly increased effect sizes and that such studies had higher … Alternatively, we will include smaller studies and conduct sensitivity analyses to assess the effect of sample … size. … Sensitivity analyses will be conducted for significant findings, using outliers, sample size, type of

189. Calcineurin_Inhibitors_Protocol_FINAL_10-07-2014 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/calcineurin-inhibitor_research-protocol.pdf
     October 08, 2014 - Study Design Criteria 1. Therapeutic monitoring (KQ1a, KQ1b, KQ2). … Elements to be abstracted include general study characteristics (e.g., country, setting, study design … 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 will be an important limitation in many studies, and addressing this through meta-analysis

190. Evidence-based Practice Center Systematic Review Protocol: Malnutrition in Hospitalized Adults (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/malnutrition-hospitalized-adults-protocol.pdf
     October 19, 2020 - Study Design Criteria 1. … 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

191. Interventions To Prevent Age-Related Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer’s-Type Dementia (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cognitive-decline-disposition-170707pdf.pdf
     March 24, 2017 - The sample size threshold is only for observational studies; RCTs of any size were eligible. … Page 26 of 230, lines 16-17 states that limitations in study design were based on study design and … Page2 and Comparative Effectiveness Reviews (ECER Guide)1 notes that excluding studies based on small sample … size introduces bias and “... may exclude valuable information.” … (non-experimental design).

192. Interventions To Prevent Age-Related Cognitive Decline, Mild Cognitive Impairment, and Clinical Alzheimer’s-Type Dementia (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/cognitive-decline-disposition-170707pdf.pdf
     March 24, 2017 - The sample size threshold is only for observational studies; RCTs of any size were eligible. … Page 26 of 230, lines 16-17 states that limitations in study design were based on study design and … Page2 and Comparative Effectiveness Reviews (ECER Guide)1 notes that excluding studies based on small sample … size introduces bias and “... may exclude valuable information.” … (non-experimental design).

193. AHRQ Slide Template 2009 (ppt file)
     effectivehealthcare.ahrq.gov/sites/default/files/presentation.ppt
     August 01, 2009 - the study population, interventions, and outcomes Methodological heterogeneity — variation in study design … allows entire subsets of the literature to be summarized and compared (e.g., by key question or study design … conducted — stratified by cancer type, designs, and outcomes — while getting a sense of their relative sample … sizes. … Markers (empty circles) stand for published studies; their area is proportional to the sample size, and

194. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/kidney-disease-medicine_research-protocol.pdf
     November 01, 2010 - We will exclude RCT or CCT with a sample size of less than 100 participants (total enrollment) and those … We believe that studies with smaller sample sizes and/or shorter follow-up duration would have extremely … We will exclude studies with a sample size of less than 50 participants (total enrollment) and those … We will exclude studies with a sample size less than 50 participants (total enrollment across groups … ) subject recruitment, randomization, allocation concealment, sample size, similarity of groups at baseline

195. Disposition of Comments Report for CER 203 ADHD (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cer-203-adhd-disposition-comments.pdf
     January 01, 2018 - TEP Reviewer #4 Methods I also couldn't find the rationale for having different sample size for the … The review indicates that the FDA standard of sample size was included, but the rationale for doing … sample size requirements. … sample size requirements. 78. … sample size requirements. 79.

196. Ch 10-User-Guide-To-Ocer 130129 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/ch_10-user-guide-to-ocer_130129.pdf
     January 01, 2011 - is that in the former there may still be imbalances in study covariates, and in the latter sample … size may be reduced to the extent that some of the subjects cannot be matched. … However, an initial limitation of this approach is that sample size is reduced, which affects efficiency … – Should take into account the design (independent vs. dependent observations, matched, repeated … A basic study design for expedited safety signal evaluation based on electronic healthcare data.

197. Evidence Report on the (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/weight-loss-surgery_research-protocol.pdf
     December 14, 2010 - what are the key variables influencing the long-term net benefits compared to harms, to inform the design … The following study design types will be included: case series, cohort, case control, controlled trail … Minimum sample size of the study is two (i.e., individual case report will not be reviewed). … For each intervention within a trial, the sample size, mean outcome, and standard deviation will be … Therefore study questions, design and/or methodological approaches do not necessarily represent the

198. Choice-Of-Mean White-Paper (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/choice-of-mean_white-paper.pdf
     April 01, 2015 - Group #2) Number of Studies (N) Group #1 and Group #2 Total Sample Size (Min-Max) Baseline … Group #2) Number of Studies (N) Group #1 and Group #2 Total Sample Size (Min-Max) Baseline … Group #2) Number of Studies (N) Group #1 and Group #2 Total Sample Size (Min-Max) Baseline … Group #2) Number of Studies (N) Group #1 and Group #2 Total Sample Size (Min-Max) Baseline … Group #2) Number of Studies (N) Group #1 and Group #2 Total Sample Size (Min-Max) Baseline

199. Pressure-Ulcer-Treatment Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/pressure-ulcer-treatment_executive.pdf
     May 01, 2013 - size for a given intervention and by looking for unpublished studies through the gray literature search … These studies examined a wide range of interventions, but sample sizes often were small. … Future studies with larger sample sizes, more rigorous adherence to methodological standards for clinical … sizes or mixed results across studies. … size, and measured outcomes (wound size reduction rather than complete wound healing).

200. Wheelchair-Service Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/wheelchair-service_research-protocol.pdf
     July 01, 2010 - Study design/size c. … We will extract patient characteristics, study design, sample size, the elements of the assessment process … For Question 2, a table in the Brief will summarize the number of studies and the sample size included … Therefore study questions, design and/or methodological approaches do not necessarily represent the