Funnel plot: Difference between revisions

Revision as of 13:12, 26 March 2012

Revision as of 11:17, 11 May 2012

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[[ImageFile:Funnelplot.png|thumb|right|An example of a funnel plot.]]

A '''funnel plot''' is a useful graph designed to check the existence of [[publication bias]] in [[systematic review]]s and [[meta-analysis|meta-analyses]]. It assumes that the largest studies will be near the average, and small studies will be spread on both sides of the average. Variation from this assumption can indicate publication bias.

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| year = 1984

| ___location = Cambridge, Massachusetts.

| isbn = 06748543140-674-85431-4

}}</ref>

and discussed in detail by Egger and colleagues,<ref>{{Cite journal