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RE: Subject: st: decimal points in funnel plot


From   Vasan Kandaswamy <vasan.kandaswamy@ki.se>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   RE: Subject: st: decimal points in funnel plot
Date   Thu, 30 Aug 2012 11:56:53 +0000

Dear Ross,

Thank you very much. I am sorry, I was actually referring to Forest plots. The outcome of interest is waist-hip ratio, which makes it difficult or rather not possible to change the scale of estimates. 
If you have any further suggestions of this, it would be of great help. 

Best regards, 
Senthil 


Senthil Vasan K
Karolinska Institutet
Department of Molecular Medicine and Surgery
Rolf Luft Research Center for Diabetes and Endocrinology
Karolinska University Hospital, Solna, L1:01
171 76 Stockholm
Mobile: +46-7 608 139 76
Phone: +46-8 517 749 46
Fax: +46-8 5177 6900
________________________________________
From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] on behalf of Ross Harris [Ross.Harris@hpa.org.uk]
Sent: Thursday, August 30, 2012 11:15 AM
To: statalist@hsphsun2.harvard.edu
Subject: Subject: st: decimal points in funnel plot

Dear Vasan

I am wondering if you refer to forest plots rather than funnel plots, as
the funnel plot does not display study estimates. If you mean forest
plots, and are using metan, then you are right: unfortunately it is not
possible to change the decimal places. This is because most applications
use risk ratios of some sort, which are generally adequately displayed
to 2dp. This is something on the wishlist to be changed in future.

If your estimates really are so small, then perhaps they are
non-standardised mean differences. In which case, I would suggest
changing the scale of your estimates - e.g., grams to kilograms, 1000s
of whatever measure you are using, etc. Similarly, if you are analysing
some non-standard measure, such as rates, then change the scale of
these. Hopefully this is something that will be updated in future, but
this will have to do for now.

Best wishes,
Ross


Date: Wed, 29 Aug 2012 11:34:25 +0000
From: Vasan Kandaswamy <vasan.kandaswamy@ki.se>
Subject: st: decimal points in funnel plot

Hello everyone,
I am doing a meta-analysis and would like to seek help on editing funnel
plots in STATA.

For a particular trait that I am interested in, the effect size and
95%CI are in the range of 0.001-0.0004. The funnel plot shows only upto
two decimal points ( which makes it appear 0.00 for all studies in the
analysis).  I would much appreciate if someone tells me, how this could
be edit  to 3-4 decimal points.

Thanks,
Senthil Vasan
Karolinska University Hospital, Solna, L1:01
171 76 Stockholm

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