[R-meta] help

[Michael Dewey]

You could assume some distribution of ages between the lower and upper 
limit and then calculate its mean.

Note though that what you propose is an ecological analysis - you are 
not looking at the effect of age but at the effect of being enrolled in 
a study with people of a certain average age.

On 18/10/2017 09:51, Yalemzewod Gelaw wrote:
> *Does missing of mean age dealt for Meta-analysis in r? *
> 
> Hi everyone,
> 
> 
> 
> I am doing a meta-analysis for single proportion.
> 
> During my review I found some articles that didn’t present the mean age of
> the study participants, some of them reported the age group. I want to do a
> moderator analysis (meta-regression) to find out the source of
> heterogeneity. I am asking your experience whether it’s possible to handle
> the missing mean age using missing data handling techniques.
> 
> To give you some information about the data: 22 out of 69 included articles
> didn't report the mean age.
> 
> If I am not burden you with this, please provide me supportive documents.
> 
> 
> 
> Thank you for any help!
> 
> 
> 
> 
> *Sincerely, *
> 
> 
> *Yalemzewod Assefa Gelaw  (Yalem)*
> 
> *PhD Candidate, the University of Queensland, Australia *
> *Email: yalassefa at gmail.com <http://yalassefa@gmail.com/y.gelaw@uq.edu.au>*
> 
> 
> *"Change is good ... but it hurts "*
> 
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> 
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-- 
Michael
http://www.dewey.myzen.co.uk/home.html