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Showing results for "sample".

61. AHRQ Slide Template 2009 (ppt file)
    effectivehealthcare-admin.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

62. Recruiting/Selecting Participants (pdf file)
    effectivehealthcare-admin.ahrq.gov/sites/default/files/delilberative-methods-design-goold.pdf
    January 11, 2017 - 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…

63. Technical Brief 13: Gene Expression Profiling for Predicting Outcomes in Stage II Colon Cancer (pdf file)
    effectivehealthcare-admin.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?

64. Imaging Techniques for the Surveillance, Diagnosis, and Staging of Hepatocellular Carcinoma | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/liver-cancer/research-protocol
    December 01, 2019 - Sample Size Studies with very small numbers of participants (n < 20) will not be included. … See Table 2 for a sample of the proposed search strategy. … Sample of proposed search strategy for Hepatocellular Carcinoma Imaging —Ovid MEDLINE® (1998–2013) … categories will be abstracted, including but not limited to: study design, year, setting, country, sample … We will also estimate publication bias by examining whether studies with smaller sample sizes tended

65. women-hiv-protocol-160301 (pdf file)
    effectivehealthcare-admin.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

66. Strategies for Improving the Lives of Women Aged 40 and Above Living With HIV/AIDS | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/women-hiv/technical-brief
    March 01, 2020 - We outline resources that are available to these women in a purposeful sample of six States (Rhode Island … In the sample of States, we found more HIV resources (testing, housing, medical and mental health, and

67. Future Research Needs for Diagnosis of Obstructive Sleep Apnea (pdf file)
    effectivehealthcare-admin.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

68. Interventions Targeting Sensory Challenges in Children With Autism Spectrum Disorders - An Update (pdf file)
    effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/asd-interventions-disposition.pdf
    May 26, 2017 - Peer Reviewer #7 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. … We selected a minimum sample size of 10 for RCTs because we felt that the typically greater controls … for bias and rigor helped to mitigate limitations of a smaller sample size. … We scanned a random sample of non-English abstracts (n=150) and identified few eligible items.

69. Study Eligibility Criteria (ppt file)
    effectivehealthcare-admin.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

70. C-Diff-Infections-Surveillance-140925 (pdf file)
    effectivehealthcare-admin.ahrq.gov/sites/default/files/related_files/c-diff-infections-surveillance-140925.pdf
    January 01, 2014 - (a) Do the differences in performance measures vary with sample characteristics? … (a) Do the differences in performance measures vary with sample characteristics? … The lower limit of detection of the stool real-time PCR was 30 CFU/ml of stool sample per reaction … (ID C. difficile prototype [IDCd]) for isolation of C. difficile compared using three different sample … (a) Do the differences in performance measures vary with sample characteristics?

71. Medical Therapies for Children With Autism Spectrum Disorder—An Updaterum Disorder--An Update (pdf file)
    effectivehealthcare-admin.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.

72. Pneumocystis Infections | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/health-topics/pneumocystis-infections
    To diagnose PCP, doctors use a microscope to look for the fungus in a sample of lung fluid or tissue.

73. Management of Renal Masses and Localized Renal Cancer | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/renal-cancer/research-protocol
    December 01, 2019 - Renal mass sampling can be done by fine needle aspiration with a reading of the sample by a cytopathologist … , or by core biopsy with a reading of the sample by a surgical pathologist. … A third reviewer will audit a random sample of articles by the first two reviewers to ensure consistency … studies Domain Question Domain 1: Patient Selection Was a consecutive or random sample

74. Attention Deficit Hyperactivity Disorder: Effectiveness of Treatment in At-risk Preschoolers; Long-term Effectiveness in All Ages; and Variability in Prevalence, Diagnosis, and Treatment | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/adhd/research-protocol
    December 01, 2019 - Sample size There are no restrictions for study sample size. … Prior to performing the data extraction, a calibration exercise will be conducted using a random sample … data will include study characteristics (e.g., first author, country of research origin, study design, sample … history of treatment(s), age of first diagnosis, etc), study outcomes (both of benefit and of harm), sample … explore the impact of key methodological study limitations, in particular 1) percent of withdrawals, 2) sample

75. Update Topic CER 31 Clostridium difficile NSD FINAL (pdf file)
    effectivehealthcare-admin.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.

76. Effectiveness of Isosorbide Dinitrate and Hydralazine in Racial/Ethnic Subgroups With Heart Failure | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/congestive-heart-failure-medicines/research
    January 01, 2020 - However, the effectiveness of H-ISDN in a community sample of African-Americans and other racial/ethnic … We excluded 366,249 patients (62% of the total) and took a random sample of 20% of Whites (excluding … Our sample was >98% male, limiting the generalizability of our findings to women. … We also excluded approximately 20% of our sample who lacked racial or ethnic identifiers, as well as … This large sample allowed us to evaluate outcomes in multiple subgroups.

77. 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-admin.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

78. Effectiveness of Medical Therapy, Endovascular Therapy, and Surgery for Peripheral Arterial Disease | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/peripheral-artery-disease-effectiveness/abstract
    December 01, 2019 - Detailed chart review will be conducted on a random sample of patients (n=3500) from the registry togather … effectiveness analyses comparing surgical versus endovascular approaches will focus on the chart review sample

79. Pressure Ulcer Treatment Strategies: Comparative Effectiveness | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/pressure-ulcer-treatment/research
    December 01, 2019 - These studies examined a wide range of interventions, but sample sizes often were small. … Future research with larger sample sizes, more rigorous adherence to methodological standards for clinical

80. Improving the Utility of Evidence Synthesis for Decision Makers in the Face of Insufficient Evidence | Effective Health Care (EHC) Program
    effectivehealthcare-admin.ahrq.gov/products/improving-evidence-synthesis/white-paper
    April 01, 2021 - data sources: a literature review for relevant publications and frameworks, a review of a convenience sample … In the purposive sample of 43 systematic reviews, the use of the term "insufficient" covered both instances