Forest Plots in Excel: Moving beyond a Clump of Trees to a Forest of Visual Information.

Abstract

Forest plots provide an effective means of presenting a wealth of information in a single graphic. Whether used to illustrate multiple results in a single study or the cumulative knowledge of an entire field, forest plots have become an accepted and generally understood way of presenting many estimates simultaneously. This article explores advanced uses of the forest plot with the intent of highlighting the flexibility of Excel in generating both simple and complex forest plots. A step-by-step tutorial is included with specific directions for generating a stratified forest plot and general suggestions for modifying the forest plot to meet the user’s specific needs.