funnel plot asymmetry should not be considered to be diagnostic for the presence of non-reporting bias 漏斗图不对称性检验只适用于其使用合适的少数荟萃分析。如果有漏斗图不对称的证据,那么作者应该尝试区分表13.3中列出的不同可能的原因 下面是我在公众号NEJM医学前沿(四大医刊之一)的视频上截图下来的,可以辅...
Summary This chapter contains sections titled: Definition and Rationale History of Funnel Plots Guidelines on Choice of Axis for Funnel Plots Funnel Plots for Studies with Binary Outcomes Funnel Plots for Studies with Numerical Outcomes Interpretation – Sources of Funnel Plot Asymmetry How Many Studies...
What Does an Asymmetrical Funnel Plot Mean? Funnel plots can be used as a check forbiasin meta-analysis results. Asymmetry is commonly equated with publication bias and other kinds ofreporting bias. However, funnel plots are not a good way to investigate publication bias (Sedgwick). There can ...
In a simulation study of standardized mean difference effect sizes, we assess the Type I error rates of conventional tests of funnel plot asymmetry, as well as the likelihood ratio test from a three﹑arameter selection model. Results demonstrate that the conventional tests have inflated Type I ...
Funnel plot Thefunnel plotwas used to test any publication bias.15An estimation of the overall result was also expressed by using a Forest plot.15In contrast to the overall test of heterogeneity, the test for funnel plot asymmetry assesses a specific type of heterogeneity. However, any analysis...
However, visual inspections of funnel plots can be subjective, wherefore we have used the test of Egger et al. (1997) to determine the existence of publication bias. This test allows to contrast the existence of asymmetry in the funnel plot. Given that we do not have the standard errors of...
The funnel plot (with the associated significance test for asymmetry of the plot) has been advocated by many for this purpose 1, 6, 7, 8. However, the procedure lacks empirical evidence to support what is observed is, indeed, selection bias. It was suggested that the method may result in...
Recommendations for examining and interpreting funnel plot asymmetry in meta-analyses of randomised controlled trials Funnel plots, and tests for funnel plot asymmetry, have been widely used to examine bias in the results of meta-analyses. Funnel plot asymmetry should not ... JAC Sterne,AJ Sutton,...
Funnel plot for publication bias in selection of studies on the TPA -7351C/T polymorphism and ischemic stroke (TT vs CT+CC). X Sun,L Rong,J Li,... 被引量: 0发表: 2013年 The appropriateness of asymmetry tests for publication bias in meta-analyses: a large survey Background: ...
Recommendations for examining and interpreting funnel plot asymmetry in meta-analyses of randomised controlled trials Atlas of Mesozoic and Cenozoic coastlines Sterne JAC, Egger M. Funnel plots for detecting bias in meta-analysis: Guidelines on choice of axis. J Clinical Epidemiology 54: 104... ...