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st: Re: midas update

From   "Ben Dwamena" <>
To   <>, "riccardo marmo" <>
Subject   st: Re: midas update
Date   Sat, 04 Jul 2009 18:49:33 -0400

Dear Ricardo,

Thanks for alerting me to an error in the help file regarding the galb option of midas.
The correct syntax for the galbraith plot is:
midas tp fp fn tn, galb (tpr|tnr|lrp|lrn|ldor) and not galb(dss|dlr|dlor)

Also an appropriate citation would be:
 Dwamena, Ben A. 2007.  midas: Stata module for Meta-analytical Integration of Diagnostic Accuracy Studies. 

Thanks and best regards,


Ben Adarkwa Dwamena, MD

Assistant Professor of  Radiology
Division of Nuclear Medicine
Department of Radiology
University of Michigan Health Systems
B1G505 UH SPC 5028
1500 E. Medical Center Drive
Ann Arbor, MI  48109-5028

Staff Physician
D748 Nuclear Medicine Service (115), 
VA Ann Arbor Health Care System
2215 Fuller Road
Ann Arbor, MI 48105
734-845-3775 Phone
734-845-3252 Fax

>>> "riccardo marmo" <> 7/4/2009 7:58 AM >>>
Thank you again for the midas upddate (february 2009)
I am using midas to perform a meta-analysis of binary diagnostic test accuracy.  
midas tp fp fn tn, galb (dss)
I 'm not able to perform the Galbraith plot  to explore the heterogeneity; could help me?

Is this citation complete and exact?

 Dwamena, Ben A.(2007) (or 2009?) midas: A program for Meta-analytical Integration of Diagnostic Accuracy Studies in
        Stata.  Division of Nuclear Medicine, Department of Radiology, University of Michigan Medical School, Ann Arbor, Michigan.

Riccardo Marmo MD
Chief Gastroenterology Unit
P.O.Polla SA
Via l.Curto
84035 Polla SA

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