Empirical Comparison of Publication Bias Tests in Meta-Analysis
نویسندگان
چکیده
منابع مشابه
Publication Bias in Meta-Analysis
Publication bias is the term for what occurs whenever the research that appears in the published literature is systematically unrepresentative of the population of completed studies. Simply put, when the research that is readily available differs in its results from the results of all the research that has been done in an area, readers and reviewers of that research are in danger of drawing the...
متن کاملAdjusting for Publication Bias in Meta-Analysis
We review and evaluate selection methods, a prominent class of techniques first proposed by Hedges (1984) that assess and adjust for publication bias in meta-analysis, via an extensive simulation study. Our simulation covers both restrictive settings as well as more realistic settings and proceeds across multiple metrics that assess different aspects of model performance. This evaluation is tim...
متن کاملEmpirical assessment of effect of publication bias on meta-analyses.
OBJECTIVE To assess the effect of publication bias on the results and conclusions of systematic reviews and meta-analyses. DESIGN Analysis of published meta-analyses by trim and fill method. STUDIES 48 reviews in Cochrane Database of Systematic Reviews that considered a binary endpoint and contained 10 or more individual studies. MAIN OUTCOME MEASURES Number of reviews with missing studie...
متن کاملExtent of publication bias in different categories of research cohorts: a meta-analysis of empirical studies
BACKGROUND The validity of research synthesis is threatened if published studies comprise a biased selection of all studies that have been conducted. We conducted a meta-analysis to ascertain the strength and consistency of the association between study results and formal publication. METHODS The Cochrane Methodology Register Database, MEDLINE and other electronic bibliographic databases were...
متن کاملComparison of two methods to detect publication bias in meta-analysis.
CONTEXT Egger's regression test is often used to help detect publication bias in meta-analyses. However, the performance of this test and the usual funnel plot have been challenged particularly when the summary estimate is the natural log of the odds ratio (lnOR). OBJECTIVE To compare the performance of Egger's regression test with a regression test based on sample size (a modification of Mac...
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ژورنال
عنوان ژورنال: Journal of General Internal Medicine
سال: 2018
ISSN: 0884-8734,1525-1497
DOI: 10.1007/s11606-018-4425-7