Hi guys, I have 2 quick questions regarding estimation of publication bias in meta-analysis using the Funnel plot. 1. Regarding continuous variables where SMD are used, Do we run logES (logSMD) against standard error (SE) of the effect size (ES/SMD) or it is logES against the log of the standard error (logSE) 2.  How do I handle studies that appear twice in the funnel plot? where an intervention of interest is compared with control and another active control, do I take the study as a single…See More

Hi Guys, I have a nagging question. How do I compute Standardized Mean difference  (SMD)  (or the effect size or Cohen's d with Confidence Intervals included) from studies that only report between group difference and confidence intervals, without any datafor change, (mean +/-SD) from baseline. Given the change in (mean andSD) from baseline, I know meta-analyst softwares can generate either SMD of MDdepending on which metric u chose on the software.Summary of my question:Given only the "between…See More

Tips and techniques to help meta-analysts calculate effect sizes and the variances that are needed for the purpose of analysis.See More

I have seen this question before, but I have a similar one and the answers here in the forum didn't help me much. I am trying to include a 3 arm study for meta-analysis .My intervention of interest lets say A was compared with placebo B, and another active intervention say C. How do I extract the sample size data for these?should it be A vs. (B/2 +C/2)? or should I concentrate on A vs. B and ignore intervention C?will appreciate your thoughtsSee More