[R-meta] Meta-Analisys whit events numbers, RR, OR and HR. It's possibe?

[Dr. Gerta Rücker]

Dear Martin,

My first question is: What kind of outcome do you have? HR is for a 
time-to-event outcome, for example survival, the others are for a binary 
outcome, for example death within a certain (fixed) time interval. They 
don't describe the same thing.

For extracting data for a time-to-event outcome, there are a number of 
papers, for example

Tierney et al. (providing an excel sheet): 
https://trialsjournal.biomedcentral.com/articles/10.1186/1745-6215-8-16

Parmar et al.: 
https://doi.org/10.1002/(SICI)1097-0258(19981230)17:24<2815::AID-SIM110>3.0.CO;2-8

Best,
Gerta

Am 23.01.2021 um 13:23 schrieb Martin Lobo:
> Hi everyone !!!
> I need performed a meta-analisys, but i have a problem whith de data extractions.
> In 3 papers I have:
> event.e, n.e, event.c, n.c (or  ai=tpos, bi=tneg, ci=cpos, di=cneg)
>
> In another papers I have:
>
> n.e, n.c and HR
> In another papers I have:
>
> n.e, n.c and OR
> In another papers I have:
>
> n.e, n.c and RR
>
> I have read in the cochraine manual that it could be meta-analyzed, but I don't know how.
>
> Should I transform everything to the same summary measure?
>
> How would these measures be transformed?
>
> How would the meta-analysis with the transformed measurements.
>
> Sorry so many questions but I need your help.
>
> Regards
>
>
>
>
>
>
> Lorenzo Mart�n Lobo MTSAC, FACC, FESC
> Especialista Jerarquizado en Cardiolog�a
> Jefe de Dpto Enf. Cardiovasculares y Cardiometabolismo Hospital Militar Campo de Mayo.
> Jefe de Cardiolog�a Hospital Militar Campo de Mayo
> Ex Jefe de Unidad Coronaria Hospital Militar Campo de Mayo
> Miembro Titular de la Sociedad Argentina de Cardiolog�a
> Fellow American College of Cardiology
> Fellow European Society of Cardiology
> Ex Miembro del Area de Investigaci�n de la SAC
> Ex Director del Consejo de Aterosclerosis y Trombosis de la SAC
> Miembro Asesor del Consejo de Aterosclerosis y Trombosis de la SAC
> Ex Director del Consejo de Epidemiolog�a y Prevenci�n Cardiovascular de la SAC
>
> Miembro Asesor del Consejo de Epidemiolog�a y Prevenci�n Cardiovascular de la SAC
>
>
> Experto en Lipidos de la Sociedad Argentina de Lipidos.
> Miembro de la Sociedad Argentina de Lipidos.
> Instructor de ACLS de la American Heart Association
>
>
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>
>
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