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Showing results for "design sample size".

381. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/recombinant-factor-viia_executive.pdf
     May 01, 2010 - For these components, we made use of different categories of studies classified by study design and quality … size and methods to characterize exposure). … As necessary, we used a meta-analytic methodology developed specifically for this type of study design … Overall, these studies were of fair quality and had small sample sizes insufficient to evaluate mortality … With the exception of use in ICH, study sample sizes were small (median of 24 treated patients).

382. Disposition of Comments Report for Oral Contraceptive Use for the Primary Prevention of Ovarian Cancer (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/cancer-ovarian-contraceptives_disposition-comments.pdf
     June 07, 2013 - Exploring potential sample size and effect sizes from abstracts in the non-English literature (or translating … size criterion … sizes (Ns) can be very misleading. … Sample sizes for the specific studies are included in the study characteristic tables. … It would be helpful to mention the sample size needed for a BRCA1+ population, which would be smaller

383. Machine Learning Methods in Systematic Reviews: Identifying Quality Improvement Intervention Evaluations (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/machine-learning-quality_research.pdf
     September 01, 2012 - DESIGN: Longitudinal quality improvement study. … DESIGN: A quasiexperimental before and after design was used. … DESIGN OF STUDY: Qualitative interview case study. … DESIGN: This study applied an experimental design methodology. … Reason: design (review) Peer mentoring in long-term care: rationale, design, and retention.

384. Future Research Needs: Interventions for Adolescents and Young Adults With Autism Spectrum Disorders (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/autism-interventions-future_research.pdf
     September 01, 2012 - Second, the small sample size of our stakeholder panel limited the generalizability of our findings. … sizes, with studies typically including fewer than 50 individuals, many with co-occurring intellectual … examining the differential effects of individual comorbidities will necessitate a relatively large sample … size. … Second, the small sample size of our stakeholder panel limits the generalizability of our findings.

385. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/atrial-fibrillation-ablation_disposition-comments.pdf
     October 01, 2010 - Additional studies of potential interest for key question 1 were excluded due to small sample size or … There is clear heterogeneity among study design, sample size, patient characteristics, technologies … References #2-3 were excluded from our report due to the sample size less than 50. … Reference #9 was excluded from our report because it was a cohort study with a sample size less than … We agree fully that the recommendations made for clinical trial design for AF ablation studies proposed

386. Noninvasive, Nonpharmacological Treatment for Chronic Pain (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/nonpharma-treatment-pain_research-protocol-amended.pdf
     September 20, 2017 - , year, setting, country, sample size, eligibility criteria, attrition, population and clinical characteristics … sizes, interventions, comparison, and results), methods of quality assessment, quality ratings for … The results of these studies are at least as likely to reflect flaws in the study design as the true … size will be considered as will statistical tests for heterogeneity. … When quantitative synthesis is not possible, sample size and assessment of variance within individual

387. Methods Guide for Medical Test Reviews Chapter 12 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-prognostic_methods.pdf
     July 01, 2012 - Quality Previous reviews of prognostic indicators have demonstrated substantial variation in study design … evaluation of the accuracy of a biomarker used for classification or prediction: standards for study design … Comparing the predictive values of diagnostic tests: sample size and analysis for paired study designs

388. Hepatitis-C-Treatment-Adherence Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/hepatitis-c-treatment-adherence_executive.pdf
     September 22, 2011 - Six primarily poor-quality studies had sample sizes less than 50,28,31,34-37 while three poor- or fair-quality … The six included RCTs were rated as primarily poor quality, with small sample sizes (21–250). … sizes. … The included studies were generally small in sample size and of suboptimal quality (e.g., failure to … Researchers must begin adequately reporting details on their studies’ design and conduct.

389. Long COVID Models of Care (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/long-covid-protocol.pdf
     February 18, 2023 - Study design/size d. Comparator if relevant e. Concurrent/prior treatments f. … literature, such as key outcomes, specific populations to be studied, meaningful length of followup, study design … criteria, organized using the PICOTS (population, intervention, comparator, outcome, timing, study design … Abstracted into Evidence Tables for Each Study Data Element Details Study characteristics Study design … Inclusion/exclusion criteria Sample size at recruitment and followup rates Population characteristics

390. Evaluation of Effectiveness and Safety of Antiepileptic Medications in Patients With Epilepsy (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/epilepsy-medicine_research-protocol.pdf
     February 01, 2008 - Observational studies will be assessed for sample size, participant selection method, exposure measurement … method, potential design biases, and appropriate analyses to control for confounding. … The risk of bias will be assessed through the evaluation of both design and study limitations. … study duration with clinically relevant treatment modalities, assessed adverse events, had an adequate sample … size, and used intention to treat analysis.46 Studies meeting less than 5 criteria would be classified

391. Microsoft Word - finbody.doc (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/renal-artery-stenosis_research-2007.pdf
     January 01, 2007 - size. … N, minimum sample size; >=6 mo, minimum duration 6 months; >=1993, patients included had interventions … Studies ordered from longest to shortest duration of followup, then sample size. 22 Figure … Studies ordered from longest to shortest duration of followup, then sample size. 23 Discussion … size.

392. Suppl-1-User-Guide-To-Ocer 130129 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/suppl-1-user-guide-to-ocer_130129.pdf
     January 01, 2011 - an a priori assessment of the treatment effect estimates that can be produced by a given research design … This supplement describes the factors that a researcher should consider when proposing a research design … , and identify the assumptions that are required to ensure that (1) the research design produces unbiased … In short, investigators must ensure that the effect estimates produced by a given research design and … Part of this discussion will necessarily deal with sample size issues and statistical inference for

393. Improving Health Care and Palliative Care for Advanced and Serious Illness Disposition of Comments Report (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/quality-gap-palliative-hospice_disposition-comments.pdf
     October 01, 2012 - Added to strengths and limitations: “Studies often did not clearly report study design or details on … that RCTs (which traditionally define high quality evidence) may not be the most meaningful study design … differ from those of lower-quality studies (more likely to have methodological issues and lower sample … size), we evaluated for potential differences in results in two ways. … A CQI study could be an RCT, but it would need to be cluster-randomized design.

394. Ch 6-User-Guide-To-Ocer 130129 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/ch_6-user-guide-to-ocer_130129.pdf
     October 30, 2012 - and length of followup assessments to be included in the study following initial treatment, and the sample … size, which is influenced by the expected frequency of the outcome in addition to the magnitude of … The study power for a given sample size may be increased when such composite measures are used as … Much as with composite endpoints, using intermediate endpoints will increase study power for a given sample … size as compared with outcomes that may be relatively rare, such as primary myocardial infarction.

395. White Paper_Supplementing Systematic Review Findings With Healthcare System Data: Pilot Projects From the Agency for Healthcare Research and Quality Evidence-based Practice Center Program (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/pilot-projects-supplementing-white-paper.pdf
     December 01, 2024 - Study Design and Setting. … RCTs to identify harms is problematic due to the relatively short duration of followup and small sample … sizes,4 and trials are limited in their ability to evaluate the dynamic effects of complex interventions … Study planning and design ranged from 25 hours (Minnesota) to 180 hours (Mayo). … Because many health systems are small and may not have the necessary sample size to address the evidence

396. Venous Thromboembolism Prophylaxis in Major Orthopedic Surgery: Systematic Review Update (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/thromboembolism-update-executive-170622.pdf
     June 01, 2017 - Eligible Study Designs For all KQs, we included randomized controlled trials (RCT) of any sample size … sizes, study design features, funding sources, results (including adverse events), and risk of bias … size in the event that it was the only study of that intervention. … size in the event that it was the only study of that intervention. … When this was not possible, we selected the arm with the largest sample size (among FDA-approved or

397. Venous Thromboembolism Prophylaxis in Major Orthopedic Surgery: Systematic Review Update (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/thromboembolism-update-executive-170622.pdf
     June 01, 2017 - Eligible Study Designs For all KQs, we included randomized controlled trials (RCT) of any sample size … sizes, study design features, funding sources, results (including adverse events), and risk of bias … size in the event that it was the only study of that intervention. … size in the event that it was the only study of that intervention. … When this was not possible, we selected the arm with the largest sample size (among FDA-approved or

398. Critical Analysis of the Evidence for Patient Safety Practices in Nursing Home Settings (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/nursing-home-safety_research-protocol.pdf
     July 22, 2015 - Studies using this second approach suffer several limitations including lack of long-term data and small sample … sizes. … Study design/size d. … Incorporating human factors into the design of medical devices. … Handbook of Human Factors in Medical Device Design: CRC Press/Taylor & Francis Group; 2010. 38.

399. Patient-Monitoring-Systems-Appendix-C (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/patient-monitoring-systems-appendix-c.xlsx
     January 01, 2024 - size NA not available NEWS National Early Warning Score NR not reported NS not significant NZMEWS … Search Date and Database Number of Included Studies Number of USA Studies No. of RCTs Other Study Design … implementation of WMS impacts early deterioration detection and associated clinical outcomes, as differing design … primary studies Author, Year Study Name Part of the Larger Study Study Dates or Period Country Study Design … Size, N Results Within Arm Comparison Between Arm Comparison Adjusted Factors Eddachouri, 2023 Arm

400. Methods Research Report: Performance and Usability of Machine Learning for Screening in Systematic Reviews (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-report-machine-learning-screening.pdf
     November 01, 2019 - Population, Intervention, Comparator, Outcome, and Study design (PICOS) criteria for the systematic … Table 1 shows the PICOS (population, intervention, comparator, outcome, and study design) criteria for … Population, intervention, comparator, outcome, and study design (PICOS) criteria for the systematic … nRCT Non-randomized controlled trial PICOS Population, Intervention, Comparator, Outcome, Study design