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How to assess publication bias: funnel plot, trim-and-fill method and selection models
  1. Dimitris Mavridis1,2,
  2. Georgia Salanti1
  1. 1Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece
  2. 2Department of Primary Education, University of Ioannina, Ioannina, Greece
  1. Correspondence to Dr Dimitris Mavridis, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, Ioannina, Greece; dimi.mavridis{at}googlemail.com

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Funnel plot

A funnel plot is a scatter plot of the treatment effect estimates from individual trials against a measure of study's precision (usually the standard error (SE)).1

  • Asymmetry in the funnel plot should not be automatically equated with …

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