Re: st: Graphing of multiple meta-analyses

[Steven Samuels <sjhsamuels@earthlink.net>]

-metan- will graph its results, so I am not sure why you are  
transferring data by hand.  You can modify the graph (titles, and so   
on) using any of Stata's -graph- options. You can also combine  
different graphs using -graph, combine- , but I can't think of a way  
of understandably displaying 80 of them.   You can, however save the  
summary statistics from each -metan- run and graph these. Type  
"return list" after a -metan- run to see what is available.   In the  
live example contained in the -help- for -metan, the pooled risk  
difference is available in r(ES), so you could turn this into a variable

gen rdiff = r(ES)

save the first observation and just the statistics you want, together  
with an indicator for occupation. Append all of the occupation  
individual data sets (n=1), and graph from there.

-Steve

On Sep 28, 2008, at 2:59 PM, Anthony Staines wrote:


> Dear all,
> I would be grateful for advice on the following question. We are  
> doing a
> pooled analysis of a number of case-control studies, mainly looking at
> occupational exposures. We have a number of pre-specified analyses,  
> but
> we would also like to prepare and graph pooled estimates for about 80
> occupational groups. (We are fully aware of the statistical and
> inferential issues here.)
> At the moment we are running the analyses, (using the metan  
> command) and
> manually transferring the individual and pooled OR, study sizes etc..
> into a graphical command, to prepare a meta-analysis plot for each  
> one.
>
> We want to do two things - first eliminate this manual transfer  
> step, as
> it is error prone. Second prepare graphs containing several of  
> these in
> one graph.
> I'm not a Stata expert, Carla, who is working on this project knows
> Stata better than I do, but we would both be grateful for any
> suggestions, hints, or plain instructions,
> Best wishes,
> Anthony Staines
> --
> Anthony Staines, Professor of Health Systems Research,
> School of Nursing, Dublin City University, Dublin 9,Ireland.
> Tel:- +353 1 700 7807. Mobile:- +353 86 606 9713
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