Publication bias in meta-analysis: prevention, assessment, and adjustments. Chichester (England): Wiley. p. 75-98.Sterne, J. A., Gavaghan, D., & Egger, M. (2005). The funnel plot. In H. R. Rothstein, A. J. Sutton, & M. Borenstein (Eds.), Publication bias in meta-analysis: ...
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Keywords: meta-analysis, funnel plot, visual inference, publication bias, small study effects Webpages:https://CRAN.R-project.org/package=metaviz,https://metaviz.shinyapps.io/funnelinf%5Fapp/ The funnel plot is widely used in meta-analysis to detec...
How to read a funnel plot in a meta-analysis. We performed random-effects meta-analyses, meta-regression, subgrouping, sensitivity and funnel plot analyses.We included 32 RCTs (approximately 54,000 ... Philip,Sedgwick,Louise,... - 《Bmj》 被引量: 20发表: 2015年 Risk factors for primary...
Funnel plot asymmetry should not be equated with publication bias, because it has a number of other possible causes. This article describes how to interpret funnel plot asymmetry, recommends appropriate tests, and explains the implications for choice of meta-analysis model The 1997 paper describing ...
However, the meta-analysis might not have identified all the relevant trials that had been conducted, which might mean that the total overall estimate was biased. The purpose of the funnel plot and Egger’s test was to detect possible bias in the trials that were identified and included in ...
overall effect in the shape of an inverted funnel; when selec- tion bias is present, the plot will become asymmetrical and the overall effect of the meta-analysis will be biased [1,6]. However, this reasoning is overly simplistic because other factors may also affect the shape of the funne...
Funnel plot is taken fromBradburn, et al. 2018. Significant results are published more frequently than negative findings. Thus, including more of the former could naturally sway the overall findings of the meta-analysis. An appropriate meta-analysis therefore includes all of the relevant studies, ...
These findings also suggest that the discrepancies between large trials and corresponding meta-analyses and heterogeneity in meta-analyses may also be determined by how they are evaluated. 展开 关键词: Funnel plot Meta-analysis Randomized controlled trials Selection bias Publication bias Statistical method...
Trim and fill: A simple funnel-plot-based method of testing and adjusting for publication bias in meta-analysis. Summary. We study recently developed nonparametric methods for estimating the number of missing studies that might exist in a meta-analysis and the effect... S Duval,R Tweedie - ...