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Showing results for "sample".

141. Microsoft Word - Comparative_Effectiveness_Research_Review_Disposition_of_Comments_Report_Final_120710_refs_delinked1.docx (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/autism_disposition-comments.pdf
     November 01, 2010 - With the assistance of our technical experts, we selected a minimum sample size of 10 in order to maximize … of the Autism Diagnostic Interview - Revised in 2003 allowed researchers to introduce metrics of sample … We have added rationale about our decisions regarding sample size to the Methods section of the review … Thank you for your comment Methods It was not clear from the EPC report why 10 was used as a sample … By admitting "case study and case-control designs" but excluding all "behavioral studies with sample

142. Disposition of Comments Report for Testing of CYP2C19 Variants and Platelet Reactivity for Guiding Antiplatelet Treatment (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/antiplatelet-treatment_disposition-comments.pdf
     September 25, 2013 - We agree that number of studies and sample size of each can affect the performance of heterogeneity … The blood sample is further centrifuged at higher speed to isolate platelet poor plasma (PPP). … Manipulation Required Prior to Measurement; Sample Matrix; Materials Required; Pre-analystic Sample … • Differences in sample matrix. LTA uses plasma; VASP and VerifyNow use whole blood. … • Sample transport (the VerifyNow test is point‐of‐care and can be performed at the location of sample

143. PREGNANCY, INCLUDING PRETERM BIRTH #12 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/12_pregnancy_potential_high_impact_june_2012.pdf
     January 01, 2012 - uses Fetal Nucleic Acid Technology to detect and isolate circulating fetal DNA from a maternal blood sample … Sequenom states that circulating fetal DNA can be obtained from a maternal blood sample very early … using Fetal Nucleic Acid Technology to detect and isolate circulating fetal DNA from a maternal blood sample … Sequenom states that circulating fetal DNA can be obtained from a maternal blood sample very early … comfort relative to invasive tests, and the ability of most physician’s offices to perform blood sample

144. Assessment and Management of Chronic Cough | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/chronic-cough/research
     December 01, 2019 - , and 12 in the full report have been updated to reflect the following changes: CQLQ--corrected sample … CQLQ--corrected sample size and correlation coefficients for French 2002 paper for Repeatability.

145. Disposition of Comments_Comparative Effectiveness Review No. 256: Effectiveness of Telehealth for Women's Preventive Services (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/cer-256-telehealth-women-disposition-comments.pdf
     June 16, 2022 - marginalized populations, for example in the excluded study Glass et al., approximately 40% of the sample … They are not a representative sample of the broader patient base. … And ignores unrepresentativeness of sample who participate in telehealth studies. … and national NZ sample) is problematic as the review includes two later studies that are examining … They are not a representative sample. Issue now addressed.

146. AHRQ Evidence-based Practice Center (EPC) Program (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/wysiwyg/pdf/epc-march-2023-grand-rounds-slides.pdf
     January 01, 2023 - 8 2 19 Pre/Post† 11 0 0 3 14 Total 19 25 12 28 84 Study Design Considerations con’t Study Sample … Sizes • Sample size requirements vary by study purpose (establishing superiority vs. … equivalence) • Sample size requirements vary by outcome measure, and baseline risk for the outcome … data • More common reason for low or insufficient rating • Precision • Often low due to inadequate sample … common: weaker study designs are common - Lack of control for confounders • Next most frequent: small sample

147. Tinnitus Executive (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/tinnitus_executive.pdf
     August 01, 2013 - Anxiety symptoms 136 Insufficient for LLLT A single study with high risk of bias and small sample … Depression symptoms 136 Insufficient for LLLT A single study with high risk of bias and small sample … Small sample sizes led to these studies being considered imprecise. … Sample sizes tended to be small (<100 persons), and power calculations were largely absent from the … • Enroll sample sizes large enough to evaluate confounders.

148. S123 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/s123.pdf
     October 01, 2007 - Given this framework, suppose a researcher has data on treatment choice and survival for a sample of … Sample and Variable Definitions The data used in this study are more fully described elsewhere.25,26 … Our sample includes all patients with a diag- nosis of first-primary ESBC listed in the Iowa Cancer … Binary variables for the instruments were constructed based on percentiles across the sample. … RESULTS Table 1 compares the ESBC patients in our sample by surgical choice, the BCSI percentage in

149. Version-3-Immunity-After-Covid-19-Appendix-Table-B-1 (xls file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/version-3-immunity-after-COVID-19-appendix-table-B-1.xlsx
     January 24, 2022 - Sample collection post-infection: T0: 2 months T1: 3 months T2: 5 months T3: 7 months T4: 8 months T5 … flourescent multiplex immunoassay In-house cytopathic effect-based microneutralization test FMIA: A sample … A sample was considered positive for N-IgG when N-IgG concentration was ≥0.58 BAU/ml. … Cross-sectional NA - serosurvey with one sample HCW Health care workers and first responders in New York … with documented past infection Two positive RT-PCR samples ≥90 days apart or a new RT-PCR positive sample

150. genetic-testing-developmental-disabilities-protocol-140930 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/genetic-testing-developmental-disabilities_research-protocol.pdf
     September 30, 2014 - For example, some case series may not report the study sample size in the abstract; other studies (e.g … Screening for subtle chromosomal rearrangements in an Egyptian sample of children with unexplained … Linearity of tests is established by testing a dilution series of a positive sample. … stabilizer (where appropriate), cross-contamination during sample processing, inclusion of normal, … after adding a known amount of that analyte to the sample.

151. DuBenske_Presentation_REVISED_FINAL (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/web-based_dubenske_presenter.pdf
     January 01, 2009 - Appropriate  sampling    Timing,  demographics,  experience  w/  proposed  technology   o Sample

152. Future Research Needs for Hematopoietic Stem-Cell Transplantation in the Pediatric Population (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/stem-cell-children-future_research.pdf
     February 01, 2012 - fact that we are dealing with rare diseases and the associated difficulty in attaining appropriate sample … recruitment of sufficient number of practices willing to be randomized can be a constraint, so sample … List of recently published studies Research Gap Study Study Objective Research Design Sample Size … of recently published studies (continued) Research Gap Study Study Objective Research Design Sample … of recently published studies (continued) Research Gap Study Study Objective Research Design Sample

153. Medication-Assisted Treatment Models of Care for Opioid Use Disorder | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/opioid-use-disorder/research-protocol
     March 01, 2020 - Specific sample questions to be asked of the Key Informants based on perspective are listed below in … Sample Questions for Key Informants Key Informant Perspective Sample Questions MAT … A sample search strategy is listed below in Table 2 . … Sample Search Strategy # Search 1 Opiate Substitution Treatment/ 2 exp Opioid-Related … opioid use disorder Study characteristics Study design Inclusion/exclusion criteria Sample

154. Layout 1 (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/registries-guide_executive.pdf
     April 01, 2007 - effect, should one exist, or achieve a desired level of precision is specified, whether or not the sample … For example, a registry might compare a random sample of patient data (e.g. 5 percent to 20 percent … of patients and specific data variables) with patient charts or with a sample of registry sites based … • Rigor can be enhanced by external validation for a sample of data and/or data review by an adjudication … • For studies of safety, effectiveness, and comparative effectiveness, a sample of data are compared

155. An analytical framework for quantifying components of variability in prescriber decisions (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/instrumental-variable-methods_research.pdf
     April 01, 2010 - First, standard IV estimators possess a finite sample bias which is inversely proportional to the F … whether the instruments are sufficiently strong. 10 As discussed in the appendix, the finite sample … Split-sample Instrumental Variables Estimates of the Return to Schooling. … In small samples, IV estimators based on 2SLS possess substantial finite sample bias. … methods. 56,57 Finite sample bias is likely to be more of a problem in the presence of many weak

156. Hepatic-Fibrosis White-Paper (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/hepatic-fibrosis_white-paper.pdf
     April 01, 2014 - Sample of Letter Sent to Authors 1 Background Liver fibrosis and cirrhosis refer to scarring … 60). 9, 24-43 See Appendix A for a list of studies included in this report and Appendix B for a sample … measures of diagnostic accuracy were reported, but other necessary information was missing (e.g., sample … Sample of Letter Sent to Authors Dear Dr. _____________, We are researchers at the Pacific Northwest … Sample of Letter Sent to Authors

157. Testing of CYP2C19 Variants and Platelet Reactivity for Guiding Antiplatelet Treatment | Effective Health Care (EHC) Program
     effectivehealthcare-admin.ahrq.gov/products/antiplatelet-treatment/research-protocol
     December 01, 2019 - The precision of estimates of analytic validity depends on the specific statistic used; generally, a sample … interest were used Case–control studies N>10 subjects (per arm, if there are ≥2 arms); smaller sample … trials Nonrandomized comparative studies N>10 subjects (per arm, if there are ≥2 arms); smaller sample … because our preliminary searches indicate that non–English-language studies are few and have small sample … those we have used for other CERs and will include elements that address population characteristics, sample

158. Template for Draft Reports (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/pdf/osteoarthritis-knee-future_research.pdf
     February 01, 2013 - Large sample sizes and the identification, measurement, and appropriate adjustment for confounding … Recruitment that includes sufficient numbers of patients in select subgroups allows sample to better … A large sample will be required and follow-up should extend beyond treatment duration. … A large sample will be required and follow-up should extend beyond treatment duration. … A large sample will be required and follow-up should extend beyond treatment duration.

159. Executive Summary_Systematic Review_Pharmacologic and Nonpharmacologic Treatments for Posttraumatic Stress Disorder: 2022 Update of the PTSD-Repository Evidence Base (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/pharma-nonpharma-ptsd-2022-update-executive-summ.pdf
     January 01, 2022 - Most studies had sample sizes in the range of 25 to 99 participants (69%), with a relatively small number … Studies typically had sample sizes ranging from 25 to 99 participants (69%).

160. Medical Therapies for Children With Autism Spectrum Disorder—An Update (pdf file)
     effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/asd-medical-executive-170505.pdf
     May 01, 2017 - were generally well conducted, evidence remains insufficient for most interventions due to small sample … In our scan of a random sample of 150 non-English abstracts retrieved by our MEDLINE search, only two … size that would have been excluded in our 2011 review (which required a sample size of 30) in the … Limitations of the Evidence Base As noted, studies in the review had small sample sizes and typically … Sample size and participant followup were frequently insufficient to allow firm conclusions.