[R-meta] extracting effect sizes from multiple regression
||@t@ @end|ng |rom dewey@myzen@co@uk
Wed Oct 12 14:09:36 CEST 2022
On 12/10/2022 11:14, Catia Oliveira wrote:
> Dear all,
> I hope this email finds you well.
> Is it possible to compare the findings from multiple regressions in a
> meta-analysis or should one only include the effect sizes from simple
Yes, you can.
If one can incorporate those from multiple regression, should
> we only compare those with effect sizes from studies that have used the
> same predictors,
That would be the most logical way to go since if the variable in which
you are interested has been adjusted for different covariates then the
coefficient is estimating different effects. Having said that if the set
of covariates is similar across studies but with perhaps an extra one
here and there then you might take the view that the coefficients are
broadly comparable. If you had one set adjusted for age and another
adjusted for age and sex you might include all of them with a
categorical moderator for the different sets of covariates.
or is there some way to extract the necessary information
> from a multiple regression?
Not without the raw data I think.
> Thank you!
> Best wishes
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