[R-meta] overall efect size from subgroup analysis

[Michael Dewey]

Dear Diego

I think you may find
https://metafor-project.org/doku.php/tips:comp_two_independent_estimates
helpful.

Your data is close to unreadable as you posted in HTML and that becomes 
mangled. If you need to re-post you have to find a way to send plain 
text. I do not use Gmail but I am sure it is possible.

Michael

On 27/04/2021 08:56, Diego Grados Bedoya wrote:
> Dear all,
> 
> Several meta-analyses in my field do not report the overall effect size of
> the intervention. For instance, they report  the subgroup analysis (values
> as a percentage change for log response ratio):
> 
> subgroup
> 
> CI_lower_limit
> 
> effect_size
> 
> CI_upper_limit
> 
> number_comparisons
> 
> group_1
> 
> -73
> 
> -48
> 
> -12
> 
> 5
> 
> group_2
> 
> -38
> 
> -30
> 
> -21
> 
> 43
> 
> group_3
> 
> -24
> 
> -15
> 
> -6
> 
> 73
> 
> Assuming a random effect model (and considering that the CI of the
> subgroups could have been estimated by bootstrapping), I wonder if it is
> possible to estimate the overall effect size and the CIs just with this
> information?
> 
> Thank you in advance,
> 
> Kind regards,
> 
> Diego
> 
> 	[[alternative HTML version deleted]]
> 
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-- 
Michael
http://www.dewey.myzen.co.uk/home.html