Fig. 4

Forest plot and funnel plot of the meta-analysis illustrating the overall weighted effect size of alginate dressings versus control on the healing time in burns. A Forest plot. The diamond symbol at the bottom of the forest plot represents the overall weighted estimate. Different colors (green, red, yellow) and symbols (" + ", "-", "?" ") to denote "low risk of bias", "high risk of bias" and "unclear risk of bias ", respectively. B Funnel plot. The effect size "MD" is shown on the abscissa, and the inverse of the standard error of the value of the effect size, SE (MD), is shown on the ordinate. The dots in the figure are the individual studies included. C Result of Egger's regression test. D Result of the trim and fill method. E Result of sensitivity analysis