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Total Results: 962 records

Showing results for "design sample size".

81. Rapid Response_The Association Between Outcomes and Dental Services in Persons With Autoimmune Disease Treated With Biologics and Other Immunosuppressants: A Rapid Response Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/autoimmune-disease-rapid-research.pdf
    November 01, 2024 - : study design, sample size, follow-up duration • Intervention: dental services including routine professional … .39 Sample sizes were small, ranging from 2233 to 92.34 Mean age of the study population ranged from … Country Funding Study Design Followup Length Sample Size (Enrolled/Anal yzed) Quality Periodontitis … Followup Length Sample Size (Enrolled/Anal yzed) Quality Periodontitis Definition Treatment … Followup Length Sample Size (Enrolled/Anal yzed) Quality Periodontitis Definition Treatment

82. Research Protocol for Interventions for Substance Use Disorders in Adolescents: A Systematic Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/suda-final-protocol.pdf
    October 02, 2018 - , sample size, confirmation of SUD/problematic use, age data, intervention(s), confirmation of outcomes … of the interventions and comparators; outcome definitions; effect modifiers; enrolled and analyzed sample … sizes; study design features; funding source; results; and risk of bias. … Tables will include descriptions of the study design, sample size, intervention(s), followup duration … size from 1000 for when there are fewer than three similar studies, especially if there are large effects

83. S50 (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/s50.pdf
    October 01, 2007 - RCTs use relatively simple computations and fairly small sample sizes, which were well suited to the … enormous resources are expended to locate individuals who meet selection criteria and achieve desired sample … sizes. … For example, PBE-CPI studies to date have had sample sizes ranging from 1000 to 2500 patients and have … RCTs with similar sample sizes can cost more than 20 times as much and answer only a few questions.

84. Osteoporosis-Vibration-Therapy Research-Protocol (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/osteoporosis-vibration-therapy_research-protocol.pdf
    January 01, 2020 - We will include studies published in English of any sample size, any design (randomized controlled trial … Distribution of the studies that examined the effects of vibration therapy by study design, sample size … Sample size Comparator Table 3. … Publication Information Author Title Year of publication Journal Research Design Type of study … design P — Patient Population Country of residence of patients Inclusion criteria Exclusion criteria

85. Assessing the Quality of Individual Studies (ppt file)
    effectivehealthcare.ahrq.gov/sites/default/files/assessing-quality.ppt
    January 01, 2010 - Study design — sources of bias may vary by design Study conduct — poor study conduct and discrepancy … The second step is to evaluate design-specific sources of bias. … study design. … and providers Additional Criteria for Trials Additional Criteria for Observational Studies (I) Sample … size, width of confidence intervals, or power Methods for selecting participants Inception cohort,

86. Methods Guide for Medical Test Reviews (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-guidance-tests-bias_methods.pdf
    July 01, 2012 - aspects of data analysis, applicability, whether ethics approval is specified, and 5-2 whether sample … size estimates are detailed—has been conceptualized in a variety of ways.2–3 In addition, some schemes … (Yes/No/Unclear) Was a case-control design avoided? … study has large amounts of missing information, discrepancies in reporting, or serious errors in design … Empirical evidence of design-related bias in studies of diagnostic tests.

87. Rotator-Cuff-Tear-Surveillance-140925 (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/rotator-cuff-tear-surveillance-140925.pdf
    February 01, 2014 - The sample size of the RCTs ranged from 4019 to 95.5 The sample size for the included cohort studies … , the sample size of the study, or the type of outcome measure used. … Or 2) a trial not published in the above top 5 journals but have a sample size of at least triple the … , the sample size of the study, or the type of outcome measure used. … Five studies compared nonoperative to operative treatments, with a median sample size of 103 (IQR: 40

88. Template for Draft Reports (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/long-term-care-adults-future_research.pdf
    July 01, 2013 - Larger sample sizes will allow more research on subpopulations, and longer followup times will allow … Large sample sizes will be necessary to allow for subgroup and interaction analyses, but this is easier … Larger sample sizes will allow more research on subpopulations, and longer followup times will allow … Larger sample sizes will allow more research on subpopulations, and longer followup times will allow … The sample size was limited by standards and guidelines for statistical surveys administered by the

89. Surveillance & Identification of Triggers for Updating Systematic Reviews for the EHC Program (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/head-neck-cancer_surveillance.pdf
    August 01, 2012 - The sample size of the studies ranged from 336 to 1613. 9 The included studies compared conventional … size. … The single randomized, controlled trial had too small of a sample size and too short of a follow up … Or 2) a trial not published in the above top 5 journals but have a sample size of at least triple the … The single randomized, controlled trial had too small of a sample size and too short of a followup

90. Digestible Carbohydrate Intake and Maternal-Infant Outcomes: A Systematic Review (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/carbohydrate-intake-protocol.pdf
    April 08, 2024 - all settings except hospital and acute care will be included • Hospital and acute care Study Design … Bias of Individual Studies, described in AHRQ Methods Guide.46 Criteria will be tailored to study design … Significant flaws that imply biases of various kinds that may invalidate results; “fatal flaws” in design … This may be based on sample size sufficiency and number of events. … When quantitative synthesis is not possible, sample size and assessment of variance within individual

91. Pharmacologic and Nonpharmacologic Treatments for Posttraumatic Stress Disorder: An Update of the PTSD Repository (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd-protocol-2021_0.pdf
    January 01, 2021 - The PICOTS (Populations, Interventions, Comparators, Outcomes, Timing, Settings, Study Design) criteria … on study duration or length of follow up • Settings: o No limitation on study setting • Study Design … , year, setting, country, sample size, eligibility criteria, source(s) of funding, study characteristics … Characteristics of included studies, such as number of publications by year, study sample size, proportion … Study design l. Indicate if subscale or symptom cluster data is reported (Y/N) m.

92. Pharmacologic and Nonpharmacologic Treatments for Posttraumatic Stress Disorder: An Update of the PTSD Repository Evidence Base (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/ptsd4-final-protocol.pdf
    October 01, 2022 - on study duration or length of follow up • Settings: o No limitation on study setting • Study Design … , year, setting, country, sample size, eligibility criteria, source(s) of funding, study characteristics … Characteristics of included studies, such as number of publications by year, study sample size, proportion … Therefore, study questions, design, and methodological approaches do not necessarily represent the views … Study design l. Indicate if subscale or symptom cluster data is reported (Y/N) m.

93. Biomarkers for Assessing and Managing Iron Deficiency Anemia in Late-Stage Chronic Kidney Disease: Future Research Needs (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/chronic-kidney-disease-anemia_research.pdf
    January 01, 2013 - sizes to reach sufficient statistical power. … The sample size calculation becomes more tedious to do when the same subject undergoes multiple tests … The sample size calculation becomes more tedious when the same subject undergoes multiple tests, as … sizes to reach sufficient statistical power. … Power and sample size calculation of comparative diagnostic accuracy studies with multiple correlated

94. Nonsurgical Treatments for Urinary Incontinence in Adult Women: (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/urinary-incontinence-update_research-protocol.pdf
    June 06, 2017 - For harms outcomes: RCTs, with no minimum sample size; nonrandomized longitudinal comparative studies … N = sample size; PICOTS = populations, interventions, comparators, outcomes, timing, and setting; RCT … sizes; study design features; funding source; results; and risk of bias questions. … size. … , sample size, interventions, followup duration, outcomes, results, and study quality.

95. Methods Research Report: Creating Efficiencies in the Extraction of Data From Randomized Trials (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-report-creating-efficiencies-extraction-data.pdf
    August 01, 2021 - We selected our sample size for feasibility with respect to time, resources, and available personnel … Eligibility criteria, sample size, the 7 experimental and control arms, and primary outcome … size (n = 43/68, 63.2%). … For an additional 22.2 percent (n = 4/18) of data elements (sample size, route of administration, frequency … For the remaining four data elements (eligibility criteria, sample size, duration of intervention, primary

96. Evidence Report on the (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/arthritis-psoriatric_research-protocol.pdf
    December 06, 2010 - Original research; eligible study designs include: • Randomized controlled trials (RCTs) with a sample … size of equal to or greater than 100 • Nonrandomized controlled trials • Observational studies with … a sample size of equal to or greater than 100: prospective and retrospective cohort studies, case-control … Case report • Review articles • Editorials • Letters to the editor • Studies with insufficient sample … sizes http://www.effectivehealthcare.ahrq.gov/� Source: www.effectivehealthcare.ahrq.gov

97. Comparative Effectiveness of Therapies for Women with Noncyclic Chronic Pelvic Pain (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/related_files/pelvic-pain_disposition-comments.pdf
    January 01, 2012 - The sample size calculations provided were particularly helpful. … size. … As the report notes in the Methods section, we set a sample size cut off of 50 for treatment studies … Even using a generous sample size requirement of 50, few studies included enough participants. … of interventions is planned in the study design.

98. Effective Health Care (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/cancer-radiation_technical-brief.pdf
    November 01, 2009 - Sample sizes of studies per cancer type ........................................................... … Primary outcomes were explicitly stated in only three trials, which also reported a priori sample size … All trials enrolled a relatively small sample size, ranging from 15 to 393 patients and studied different … Most eligible studies were noncomparative in nature and had small sample sizes. … Sample sizes of studies per cancer type 0 5 10 0 5 10 0 5 10 30 300 3000 30 300 3000 30

99. Minimal Modeling Approaches to Value of Information Analysis for Health Research (pdf file)
    effectivehealthcare.ahrq.gov/sites/default/files/pdf/methods-future-value-of-information_research.pdf
    June 01, 2011 - size 15 Table 4. … We estimated a distribution of mean costs arising out of a sample size similar to that of the Phase … Optimal sample size determinations from an industry perspective based on the expected value of information … Determining optimal sample sizes for multi-stage randomized clinical trials using value of information … sizes of the respective study, and assigned a time of event to each observation (representing one patient

100. Evidence-based Practice Center Systematic Review Protocol (pdf file)
     effectivehealthcare.ahrq.gov/sites/default/files/pdf/juvenile-arthritis-dmards_research-protocol.pdf
     March 09, 2010 - Because JIA is rare, assembling a large sample size is challenging. … Therefore, we will not restrict studies based on sample size alone. … Initially, data will be synthesized qualitatively with a particular focus on design issues that may … Design issues, including confounding, will be examined as a source for heterogeneous results. … Therefore study questions, design and/or methodological approaches do not necessarily represent the