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Showing results for "sample".

41. breast-biopsy-update-130920 (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/breast-biopsy-update_research-protocol.pdf
    September 20, 2013 - Fine-needle aspiration, which retrieves a sample of cells, is generally considered less sensitive than … both core-needle and open biopsy methods.7 Core-needle biopsy, which retrieves a sample of tissue, … Sometimes a vacuum device is used to assist in removing the tissue sample through the needle. … After using the images to determine where to sample, the needle is inserted. … After using the images to determine where to sample, the needle is inserted.

42. Carbohydrate-Intake-Prepub-Final-Research-Table-Rct (xls file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/carbohydrate-intake-prepub-final-research-table-rct.xlsx
    May 29, 2025 - Quality Rating Non-randomized Cohort Author, year Did the study attempt to enroll all (or a random sample … Yes/No/Unclear Risk of Bias Low/Moderate/High For yes: attempted to enroll random sample of or all

43. Association Between Outcomes and Dental Services in People Receiving Treatments That Cause Medication-Related Osteonecrosis of the Jaw: A Rapid Response Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/dental-jaw-rapid-response.pdf
    May 01, 2025 - treatment group vs comparator group) ● Clinical practice guidelines ● Primary studies must have sample … size, and sample representative of the true population.39 The remaining six cohort studies, evaluated … Size Medication Confounder Adjustment Outcomes Assessed Treatment or Control Group (Sample … Size Medication Confounder Adjustment Outcomes Assessed Treatment or Control Group (Sample … The majority (5 out of 7) of the included cohort studies were large (sample size >1000) and were drawn

44. Disposition of Comments Report for Evidence Report/Technology Assessment No. 214 (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/smoking-pregnancy-infants_disposition-comments.pdf
    February 25, 2014 - = 0.30) the sample size per E + C Group. … The justification for this unacceptable sample size criteria in the Report makes no sense. … (See CDC Epi-Info/Estimation of sample sizes + Fleiss). … Although it is commonly used, a minimum sample size of 50 has no intrinsic value as a cutoff. … Rather the decision about sample size should be based on the purpose of the review and the methods

45. New Evidence Report on Treatments for Infantile Epilepsies (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/wysiwyg/pdf/epilepsy-infographic.pdf
    May 29, 2025 - New Evidence Report on Treatments for Infantile Epilepsies This Is a Sample Two Line Infographic Arial

46. Can Physical Activity Improve the Health of Wheelchair Users? Amended Protocol (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/wheelchair-users-amended-protocol.pdf
    June 21, 2019 - Study sample sizes will be ≥30 for MS and SCI, and ≥20 for CP. … “Study sample sizes will be ≥30 for MS and SCI, and ≥20 for CP.” … “Studies with the following sample sizes: MS (n≥30), CP (n≥20), SCI (n≥30).” … “Study sample sizes will be ≥30 for MS and ≥20 for SCI and CP.” … “Studies with the following sample sizes: MS (n≥30), CP (n≥20), SCI (n≥20).”

47. AHRQ Slide Template 2009 (ppt file)
    effectivehealthcare.ahrq.gov/sites/default/files/analytic-frameworks.ppt
    December 09, 2009 - DOI: 10.1016/s0749-3797(02)00415-4 http://www.ncbi.nlm.nih.gov/pubmed/11988383 Sample Working Framework … Sample Working Framework Systematic reviews may examine the effects of screening, diagnosis, or treatment … DOI: 10.1016/s0749-3797(01)00261-6. http://www.ncbi.nlm.nih.gov/pubmed/11306229 Sample Screening … Population Intervention Outcomes Sample Screening and Treatment Framework This slide is intended to

48. Study Eligibility Criteria (ppt file)
    effectivehealthcare.ahrq.gov/sites/default/files/study-eligibility-criteria.ppt
    January 01, 2000 - studies only) Study population size (N > 200) Study design (randomized controlled trials) Some Sample … Sometimes it is helpful for the team to set criteria, then do a sample set of reviews, and reconvene … Publication Using the Criteria The rest of this module contains a number of questions and some sample … Exercise 3: Impact of Study-Size Criteria on Excluded Studies The research team required a minimum sample … Studies Based on expert opinion and a preliminary review of the literature, the team set a minimum sample

49. Future Research Needs for Diagnosis of Obstructive Sleep Apnea (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/sleep-apnea-diagnosis-future_research.pdf
    February 01, 2012 - Sample Size Estimates for Various Clinical Scenarios of Sensitivity and Specificity With an Assumed … Sample Discussion Thread: Diagnosis ................................................................. … Sample Size Calculations For an RCT of Screening Versus no Screening for Postoperative Complications … Due to its rarer occurrence, a mortality outcome would necessitate a larger sample size than for an … Assuming a power of 90 percent, the required total sample size (1:1 ratio in a two-arm RCT) for each

50. Future Research Needs for Attention Deficit Hyperactivity Disorder: Effectiveness of Treatment in At-Risk Preschoolers, Long-Term Effectiveness in All Ages, and Variability in Prevalence, Diagnosis, and Treatment (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/adhd-future_research.pdf
    May 01, 2012 - Sample size is another important consideration in planning future research. … sample size issues after the detailed descriptions of each research need. … See the following section regarding sample size estimates. … See Table 3 in sample size section. … Each sample size was determined by generating 2,000 simulated datasets and identifying the minimum sample

51. Defining an Optimal Format for Presenting Research Needs (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-future-presentation-format_research.pdf
    January 01, 2019 - information (EVSI) or expected value of sample information for specific parameters (EVSI-P).P0F a … designs, one can proceed to calculate EVSI, the expected value of information from a sample n (and compare … information; EVSI-P = expected value of partial sample information; IPD = individual participant data … EVPI over willingness-to-pay graph plots the expected value of a hypothetical study with infinite sample … A survey of a large and representative sample of potential users of future research needs assessments

52. Medical Therapies for Children With Autism Spectrum Disorder—An Updaterum Disorder--An Update (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/asd-medical-disposition.pdf
    May 26, 2017 - TEP Reviewer #4 Methods Almost all of the studies reviewed are noted to have "small" sample size, … Moreover, most studies noted as a limitation their small sample size. … for bias and rigor helped to mitigate limitations of a smaller sample size. … Manufacturer-funded studies also tend to have larger sample sizes than many academic studies. … We scanned a random sample of non-English abstracts (n=150) and identified few eligible items.

53. women-hiv-protocol-160301 (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/women-hiv_research-protocol.pdf
    March 01, 2016 - menopause at an earlier age among HIV-infected women.4-9 However, many of these studies have a small sample … We will include studies that have a sample size of at least 100. … Smaller sample sizes are unlikely to result in precise estimates, and thus the utility of recording … Outlining Available Resources in A Purposeful Sample of Six States We will outline which resources … appear to be available to older women who live with HIV in a purposeful sample of six states, namely

54. S96 (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/s96.pdf
    October 01, 2007 - NEISS-CADEs operates in 63 hospital EDs, selected as a stratified probability sample of all hospitals … in the United States and its territories with a minimum of 6 beds and a 24-hour ED.12,13 The sample … We used data collected from a convenience sample of 6 NEISS-CADES hospitals from January 1, 2004 to June … No pediatric specialty hospital was included in this sample. … The NEISS sample (design and implementation) 1997 to present.

55. Update Topic CER 31 Clostridium difficile NSD FINAL (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/c-diff-infections-nomination-140925.pdf
    February 19, 2014 - (a) Do the differences in performance measures vary with sample characteristics? … § Do the differences in performance measures vary with sample characteristics? § KQ 2.

56. Recruiting/Selecting Participants (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/delilberative-methods-design-goold.pdf
    May 29, 2025 - Recruiting/Selecting Participants Slide 10 Recruiting/Selecting Participants Susan Dorr Goold, MD, MHSA, MA Professor of Internal Medicine and Health Management and Policy University of Michigan Slide 11 Alternatives to Random Sampling  Substantive representation o Based on extent to which groups a…

57. Colon-Cancer-Gene-Profiling Research-Protocol (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/colon-cancer-gene-profiling_research-protocol.pdf
    March 13, 2012 - Gene expression is determined by analyzing RNA in the sample, generally using either reverse transcriptase … ; derivation, validation, or both), sample size, and study goal (analytic validity, clinical validity … (Lack of reproducibility could result from both preanalytic factors [e.g., sample preparation] as well …  Sample size (number of patients/specimens) o If samples are from previous studies, which studies? … GEPs measure the activity or “expression” of multiple genes in a single RNA sample, which may reflect

58. Template for Reports Developed (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/c-difficile-future_research.pdf
    October 26, 2012 - Generalizability will depend on population sample. … Multiple sites may be needed to reach adequate sample sizes. … Multiple sites may be needed to reach adequate sample sizes. … Generalizability will depend on population sample. … Multiple sites may be needed to reach adequate sample sizes.

59. Technical Brief 13: Gene Expression Profiling for Predicting Outcomes in Stage II Colon Cancer (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/colon-cancer-gene-profiling_technical-brief.pdf
    December 01, 2012 - As shown in Table 6, this assay used microdissection of fixed, paraffin-embedded tissue during sample … Handling Sample Handling Technique for GEP Reliability (Reproducibility) Time to Report Results … Is there an effect of sample preparation, analysis, and/or tumor heterogeneity? … GEPs measure the activity or “expression” of multiple genes in a single RNA sample, which may reflect …  Sample size (number of patients/specimens) o If samples are from previous studies, which studies?

60. PowerPoint Presentation (ppt file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/medical-test-reviews-risk-bias.ppt
    June 01, 2012 - Selection bias The selection process determines the composition of the study sample. … Partial verification bias Only a selected sample of patients who underwent the index test is verified … Domain 1: Patient Selection Was a consecutive or random sample of patients enrolled? … Did the whole sample or a random selection of the sample receive verification using a reference standard … For the question, “Did the whole sample or a random selection of the sample receive verification using