Dear Dr Rogers,

I think that maybe you could compare the studies included in the subgroup analysis with the studies not included in the subgroup analysis. To do so, you could extract the values of the peak and plot and/or describe how they are similar or different for the two groups. If the number of studies is large enough, you could statistically compare the two groups using a linear model in SDM.

Re: statistical power, I am indeed working on it but the analyses are still ongoing...

With the best wishes,

Joaquim