R help - Nov 2014 - metafor - code for analysing geometric means

?Dear All


I have some data expressed in geometric means and 95% confidence intervals.  Can
I code them in metafor as:


rma(m1i=geometric mean 1, m2i=geometric mean 2, sd1i=geometric mean 1 CI /3.92,
sd2i=geometric mean 2 CI/3.92.......etc, measure="MD")

All of the studies use geometric means.


Thanks!


Edward

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On 13/11/2014 11:00, Purssell, Ed wrote:
> ?Dear All
>
>
> I have some data expressed in geometric means and 95% confidence intervals.
Can I code them in metafor as:
>
>
> rma(m1i=geometric mean 1, m2i=geometric mean 2, sd1i=geometric mean 1 CI
/3.92, sd2i=geometric mean 2 CI/3.92.......etc, measure="MD")
>
Would it not be better to work on the log scale?
> All of the studies use geometric means.
>
>
> Thanks!
>
>
> Edward
>
>   ----------------------------
>
>
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>
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Michael
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