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Re: st: Wanting to forest plot sensitivity and -LR for categorical outcomes

From   "Ben Dwamena" <>
To   <>
Subject   Re: st: Wanting to forest plot sensitivity and -LR for categorical outcomes
Date   Mon, 08 Mar 2010 10:56:23 -0500

If you have Stata 9 contact me directly for midas9 ado, help and example files

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
734-936-5388 Phone
734-936-8182 Fax

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

>>> Eddie <> 3/6/2010 1:08 AM >>>
Dear Stata listers,
I am hoping to create a forest plot of sensitivity and -LR using metandi. Unfortunately I believe I am not able to use MIDAS without Stata 10. Using Stata 8.2, I have a set of 14 studies of a diagnostic outcome with a categorical outcome. They are in the format author yr n tp fp fn tn
I am able to plot sROC, calcuate summary estimates of Se, Sp, -LR, DOR, etc and also have calculated the individual parameters for the Se and Sp (using metandi_p).  I have reached a technical sticking point and am wondering if a kind person familiar with metandi can recommend the most time efficient way to either produce the variances for Se and Sp needed for the forest plot or just plot directly the graph itself. Or, if not perhaps an alternate method of estimating the variance.   Thank you kindly in advance.  Eddie

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