Fig. 5From: Cluster randomised trials with a binary outcome and a small number of clusters: comparison of individual and cluster level analysis methodPower comparison of unweighted cluster-level analysis (CL.UNW), GLMM with REPL and DFCP (REPL), and GEE with FG standard errors and DFCP (FG.I) (columns) by number of clusters (rows), ICC (y axis), and variability of cluster size (colour)Back to article page