Results 81 to 90 of about 23,269,039 (354)
Publication Bias in Meta-Analysis: Confidence Intervals for Rosenthal's Fail-Safe Number [PDF]
arXiv, 2015 The purpose of the present paper is to assess the efficacy of confidence intervals for Rosenthal's fail-safe number. Although Rosenthal's estimator is highly used by researchers, its statistical properties are largely unexplored. First of all, we developed statistical theory which allowed us to produce confidence intervals for Rosenthal's fail-safe ...
arxiv
Accumulation Bias in Meta-Analysis: The Need to Consider Time in Error Control [PDF]
, 2019 Studies accumulate over time and meta-analyses are mainly retrospective. These two characteristics introduce dependencies between the analysis time, at which a series of studies is up for meta-analysis, and results within the series. Dependencies introduce bias --- Accumulation Bias --- and invalidate the sampling distribution assumed for p-value tests,
arxiv +1 more source
Meta-analysis in Otolaryngology [PDF]
Archives of Otolaryngology–Head & Neck Surgery, 2000 To examine the results of meta-analyses in otolaryngology and compare these results with the individual component studies that constitute each meta-analysis.A retrospective review of the literature.Studies that conducted pooled statistical systematic analyses indexed on MEDLINE for the 10-year period from January 1989 to January 1999 were selected for ...
Ramsey Alsarraf +3 more
openaire +2 more sources
A Unified Method for Improved Inference in Random-effects Meta-analysis [PDF]
arXiv, 2017 Random-effects meta-analyses have been widely applied in evidence synthesis for various types of medical studies. However, standard inference methods (e.g. restricted maximum likelihood estimation) usually underestimate statistical errors and possibly provide highly overconfident results under realistic situations; for instance, coverage probabilities ...
arxiv
Simulation Models for Aggregated Data Meta-Analysis: Evaluation of Pooling Effect Sizes and Publication Biases [PDF]
arXiv, 2020 Simulation studies are commonly used to evaluate the performance of newly developed meta-analysis methods. For methodology that is developed for an aggregated data meta-analysis, researchers often resort to simulation of the aggregated data directly, instead of simulating individual participant data from which the aggregated data would be calculated in
arxiv
Meta-analysis in evidence [PDF]
Sao Paulo Medical Journal, 1997 Escola Paulista de Medicina Department of Internal Medicine ; UNIFESP, EPM, Department of Internal Medicine ...
openaire +6 more sources
Towards causally interpretable meta-analysis: transporting inferences from multiple studies to a target population [PDF]
arXiv, 2019 We take steps towards causally interpretable meta-analysis by describing methods for transporting causal inferences from a collection of randomized trials to a new target population, one-trial-at-a-time and pooling all trials. We discuss identifiability conditions for average treatment effects in the target population and provide identification results.
arxiv
A review of artificial intelligence in brachytherapy
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Artificial intelligence (AI) has the potential to revolutionize brachytherapy's clinical workflow. This review comprehensively examines the application of AI, focusing on machine learning and deep learning, in various aspects of brachytherapy.
Jingchu Chen +4 more
wiley +1 more source
PUFA Supplement in ADHD: Meta Analysis
Pediatric Neurology Briefs, 2014 Researchers at Hammersmith Hospital, London, and Academy of Nutritional Medicine, Cambridge, UK, conducted an updated meta-analysis of randomized controlled trials (RCTs) in ADHD, using data on PUFA content obtained from independent fatty acid methyl ...
J Gordon Millichap, John J Millichap
doaj +1 more source
Global Prevalence of Helicobacter pylori Infection: Systematic Review and Meta-Analysis.
Gastroenterology, 2017 BACKGROUND & AIMS The epidemiology of Helicobacter pylori infection has changed with improvements in sanitation and methods of eradication. We performed a systematic review and meta-analysis to evaluate changes in the global prevalence of H pylori ...
J. K. Hooi +13 more
semanticscholar +1 more source