ABSTRACT
70Forest plot is a graphical display of results from individual studies on a common scale. In this plot, the areas of the squares are proportional to the precision of the estimates and the lines joining the squares represent the confidence intervals. The funnel plot is a simple scatter plot of the treatment effects estimated from individual studies on the horizontal axis against the precision of the estimates on the vertical axis. The publication bias can be investigated by the use funnel plot. The Begg’s funnel plot is a simple scatter plot of the standard error of the summary statistics on the horizontal axis against the summary statistics on the vertical axis. Galbraith plot is a graphical representation of the reciprocal of the standard error of each study estimate on the horizontal axis against the ratio of the summary statistic to its standard error (z-statistics). In Galbraith radial plot, the estimates from individual studies are plotted against the reciprocal of their standard errors. A L’Abbe plot is a scatter plot in which each point represents a study. With the vertical axis measuring the event rates in the treatment group and the horizontal axis the event rates in the control group. L’Abbe plot is useful to identify studies with differing results.
