Fig. 3From: Analysing cluster randomised controlled trials using GLMM, GEE1, GEE2, and QIF: results from four case studiesForest plots showing the intervention effect estimate and its associated 95% CI for each of the statistical model fitted on the binary outcomes of three cluster trials datasets where plots (a) & (b) are the unadjusted and the adjusted models fitted to the outcome data from PoNDER trial respectively, (c) and (d) is that of the Informed Choice trial, and (e) & (f) is for the NOSH trial. Electronic version is in colourBack to article page