Three plots elucidating effect reversion in rosiglitazone meta-analysis: (a) Scatterplot of fraction of events against proportion of patients in the active treatment group (left panel). (b) Line plot displaying risk differences within trials (middle panel). 0 = control group, 1 = active treatment group. (c) Overlay plot of scatterplot and line plot (right panel).
Rücker and Schumacher BMC Medical Research Methodology 2008 8:34 doi:10.1186/1471-2288-8-34