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Total Results: 969 records

Showing results for "design sample size".

321. Bladder-Cancer-Non-Muscle-Invasive Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/bladder-cancer-non-muscle-invasive_research-protocol.pdf
     July 21, 2014 - , year, setting, country, sample size, eligibility criteria, population and clinical characteristics … They will have a serious or “fatal” flaw or flaws in design, analysis, or reporting; large amounts of … The results of these studies will be at least as likely to reflect flaws in the study design as the … populations (e.g., demographic characteristics; stage of disease; performance status); interventions; the sample … size of the studies; and settings (e.g., patients in developing countries) in which the studies are

322. Revised Protocol - Opioids 12 13 13[1] (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/chronic-pain-opioid-treatment_research-protocol.pdf
     December 19, 2013 - , 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 … severity of pain, underlying pain condition, 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 … Therefore study questions, design and/or methodological approaches do not necessarily represent the

323. Appendicitis Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/appendicitis_research-protocol.pdf
     December 09, 2013 - because our preliminary searches indicate that non–English- language studies are few and have small sample … sizes; as such, they are unlikely to affect our conclusions. … of diagnostic tests and will include elements that address population characteristics, sample size, … study design, descriptions of the index and reference standard tests of interest, analytic details, … Studies of different designs will be graded within the context of their study design.

324. Ear-Infection Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ear-infection_executive.pdf
     May 01, 2013 - We examined several design, placement, and material features of TTs. … Sizes) Outcome and Results Strength of Evidence Oral steroids + antibiotics vs. … Sizes) Outcome and Results Strength of Evidence TT vs. … Strength of evidence for subgroups Intervention and Comparator Number of Studies (Sample Sizes) Outcome … size needed to find an effect (the RCTs of Williamson et al., the MRC, and Paradise et al. being notable

325. Methods Research Report: Pilot To Promote Entry of Structured Data Into SRDR (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-research-report-pilot-promote-entry-data-srdr_0.pdf
     October 01, 2019 - Screenshot of the MS Excel File Template for Importing Data Into the SRDR Design Tab Appendix C. … We restricted the sample size to nine respondents. … Limitation to Survey The small sample size (nine respondents) is an important limitation to the findings … Screenshot of the MS Excel File Template for Importing Data Into the SRDR Design Tab C-1 Appendix … Screenshot of the MS Excel File Template for Importing Data Into the SRDR Design Tab Appendix C.

326. Disposition of Comments for Psychological Treatments and Pharmacological Treatments for Adults With Posttraumatic Stress Disorder (PTSD) (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-adult-treatment_disposition-comments.pdf
     April 03, 2013 - Authors tended to overstate positive effects while omitting adequate examination of study design and … Studies with too small a sample size often have other more covert problems as well. … Anonymous Public Reviewer #2 Results 64: Table 20 states the Hien et al. 2004 is "unclear" as to sample … sizes per arm; those sample sizes are in fact stated in the Hien article (pg. 1428)—n=41 SS, n=34 RP … It does not meet eligibility criteria, based on study design.

327. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/antidepressants-update_executive.pdf
     December 01, 2011 - For quantitative analyses, we included all eligible studies without sample size limitations. … concluded that we could not conduct any quantitative analyses, then we included studies only if they had sample … sizes of 40 or larger. … We included observational studies that had large sample sizes (1,000 patients or more), lasted at least … Results are limited by study design; differences in outcomes are of unknown clinical significance.

328. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/head-neck-cancer_executive.pdf
     May 01, 2010 - The single randomized, controlled trial had too small of a sample size and too short of a followup to

329. Menopause Executive (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/menopause_executive.pdf
     March 01, 2015 - could discern that the articles did not meet one or more of the inclusion criteria relating to study design … data were abstracted: • Trial characteristics: Author, year, country, number of trial sites, trial design … effects of nonhormone therapies contained the following information: condition, treatment, study design

330. App-D-Opioid-Chronic-Pain-Surveill-Report-1 (xls file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/app-d-opioid-chronic-pain-surveill-report-1.xlsx
     September 30, 2015 - Randomized controlled trials Author, Year Study Design Duration Setting Country Eligibility Criteria … C: aOR 0.28 (95% CI 0.13 to 0.62) Note: ADL and IADL not calculated due to small sample size Patients

331. Smoking-Pregnancy-Infants Research-Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/smoking-pregnancy-infants_research-protocol.pdf
     March 11, 2013 - The team established this minimum sample size to balance the need for smaller studies of specialized … populations (e.g., studies in specific ethnic groups) with the need for studies with sample sizes large … size, study type, intervention(s) and comparator(s), population characteristics, baseline data, and … sizes), the quality of evidence (from the quality ratings on individual articles), and the coherence … Not a study design of interest 43. Rosewich M, Adler S, Zielen S.

332. Management of Uterine Fibroids - Evidence Summary (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/evidence-summary-cer-195-uterine-fibroids-final.pdf
     December 01, 2017 - published as candidate covariates and we stratify by prospective versus retrospective study 3 design … size, but strength of evidence is low because of short followup and poor quality of overall study design … the range of the point estimates that others have produced.10,24,25 Our analysis includes a larger sample … size, more prospective studies, and more recently published data. … Future Research Key components of study design, analysis, and reporting remain the leading weaknesses

333. Disposition of comments for CER 169 Low Back Pain (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/back-pain-treatment_disposition-comments.pdf
     February 29, 2016 - TEP Reviewer #6 Lines 44-49 on page 15 are not clearly written We revised the description of sample … sizes to be clearer: “The sample size was 456 in one trial and ranged from 40 to 70 in the others … almost all trials used an un-blinded design and trials frequently had high attrition. … almost all trials used an un-blinded design and trials frequently had high attrition. … The large sample sizes of these trials also inform the applicability of this review's conclusions

334. EHC Protocol: Addressing Social Isolation To Improve Health of Older Adults: A Rapid Evidence Review (Amended) (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/masks-prevention-covid-healthcare-community-amended-protocol.pdf
     July 02, 2020 - Data extracted will include author, year, country, study design, study dates, sample size, intervention

335. Total Worker Health® (TWH) (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/worker-health_executive.pdf
     April 01, 2016 - Several studies had small sample sizes and thus lacked power for determining intended effects. … limitations that included differences between intervention and comparison groups at baseline, small sample … sizes and power, high overall or differential attrition, and choices of statistical analyses (e.g., … randomization and allocation concealment, differences in intervention and control groups at baseline, small sample … sizes (and thus lack of power for determining intended effects), lack of clarity in defining intervention

336. ASSESSING THE QUALITY OF INCLUDED STUDIES (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/assessing-the-risk-of-bias_draft-report.pdf
     June 02, 2011 - o Assess risk of bias based on study design and conduct rather than reporting. … The impact of random error on the precision of estimates can be reduced by increasing sample size. … inclusion of random error in this definition of quality, quality assessment tools have included sample … size evaluation as an explicit component in the past. … Quaisi-experimentation: design and analysis issues for field settings.

337. Attention Deficit Hyperactivity Disorder: Executive Summary (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/adhd_executive.pdf
     October 01, 2011 - Study authors were contacted via email for missing outcome or design data. … From a design hierarchy perspective, comparative group designs provide stronger evidence for efficacy … of evidence (SOE): • Study limitations (predominantly risk­of­bias criteria) • Type of study design … XR.63,65 Concerns about exacerbation of tics with stimulants appear to be unfounded, although the sample … size remains small and may result in type II error.58,62 Use of psychostimulants slows the rate of

338. 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 - , year, setting, country, sample size, eligibility criteria, attrition, population and clinical characteristics … The results of these studies are at least as likely to reflect flaws in the study design as the true … quality, heterogeneity across studies with regard to patient population, intervention and outcomes, and sample … size will be considered as will statistical tests for heterogeneity. … When quantitative synthesis is not possible, sample size and assessment of variance within individual

339. Layout 1 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/related_files/juvenile-arthritis-dmards_executive.pdf
     September 01, 2011 - Therefore, trials require large sample sizes with long followup periods. … reporting of serious adverse events; a predominance of case reports and uncontrolled series; small sample … sizes in most series and RCTs; a limited number of studies for many individual DMARDs; and frequent

340. skin-cancer-protocol-160810 (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/skin-cancer_research-protocol.pdf
     August 10, 2016 - The basic elements and design of the extraction form will be the similar to those used for other AHRQ … exposures, and comparators analyzed; outcome definitions; effect modifiers; enrolled and analyzed sample … sizes; study design features; funding source; results; and risk of bias questions. … These included descriptions of the study design, sample size, interventions, followup duration, outcomes … Therefore study questions, design, and methodological approaches do not necessarily represent the views