[R-meta] Meta-analysis with only p.values and N?

Those methods have their uses but if Raquel wants a forest plot I do not 
think they generate the required effect size with its confidence interval.

Michael
Dear Raquel,

in Boerenstein et al. 2009 (Handbook) there is a description of a method 
to combine p values for a pooled p value. Maybe that would be a solution?

Regards,

Tobias Saueressig

Am 05.12.2020 12:21 schrieb Michael Dewey <lists at dewey.myzen.co.uk>:

    Dear Raquel

    If you have the means or the difference in means as well then you can
    back-calculate what you need but if not I am afraid I can see no way
    forward although other smarter list readers may be able to help.

    Michael

    On 04/12/2020 18:45, Raquel Cumeras Olmeda wrote:
     > Dear all,
     >
     > We are trying to do a meta-analysis of metabolomics data.
     > In metabolomics, we study the changes of the concentrations of
    compounds in biofluids.
     >
     > So, for the data I am trying to analyze I have the p.value of the
    relevant compounds and the N of the patients and controls.
     >
     > We tried to do a forest plot, but we don't know how to do it with
    only the p.value and the N.
     >
     > Any help would be more than welcome!
     >
     > Raquel Cumeras
     >
     >
    -----------------------------------------------------------------------------------------------

     > Raquel Cumeras, Ph.D.
     > Marie Curie Postdoctoral Research Fellow
     > - Institut d'Investigaci? Sanit?ria Pere Virgili (IISPV, ES).
    Metabolomics Platform<http://metabolomicsplatform.com/>.
     > - University of California Davis (UC Davis, USA). Fiehn lab.
     > - Affiliated to Universitat Rovira i Virgili (URV, ES) and
    CIBERDEM (ISCIII, ES).
     >
     > website: https://raquelcumeras.wordpress.com/
     > e_mail: raquel.cumeras at iispv.cat<mailto:raquel.cumeras at iispv.cat>
    // rcumeras at ucdavis.edu<mailto:rcumeras at ucdavis.edu> //
    raquel.cumeras at urv.cat<mailto:raquel.cumeras at urv.cat>
     > ORCiD: 0000-0003-4663-4247
     > Pronouns: she/her
     >
    -----------------------------------------------------------------------------------------------

     >
     >
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     >
     >
     >
     >
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    -- 
    Michael
    http://www.dewey.myzen.co.uk/home.html

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[R-meta] Meta-analysis with only p.values and N?

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