Figure 3From: Simpson's paradox visualized: The example of the Rosiglitazone meta-analysis Three plots illustrating Simpson's paradox in a meta-analysis of case-control studies: (a) Scatterplot of frequency of exposition (on a log odds scale) against proportion of cases (left panel). (b) Line plot displaying log odds ratios within studies (middle panel). 0 = control group, 1 = case group. (c) Curved overlay plot (right panel).Back to article page