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Re: st: Concordance analysis

From   Roger Newson <>
Subject   Re: st: Concordance analysis
Date   Mon, 10 Feb 2003 21:22:58 +0000

At 12:41 10/02/03 -0800, John Wallace wrote:
Hi List Members

First of all, my apologies if this gets posted twice. I originally submitted the email 4 hours ago and I haven't yet seen it appear on the list.

On to my question:
A common method of analysis at my company is to take a binary result from one experiment and compare it with the result from another - I'll diagram below. Each "gene" is independent with respect to the other genes in the experiment. I have heard that these tables can be analyzed for a null hypothesis using Fisher's Exact Test - can Stata be configured to do this?
Fisher's exact test is available under the -epitab- package of official Stata, and so are confidence intervals for the odds ratio (which are probably more informative than Fisher's exact test alone). In Stata, type -help epitab-. Or read the Stata reference manual under -[R] epitab-.

I hope this helps.


Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
King's College London
5th Floor, Capital House
42 Weston Street
London SE1 3QD
United Kingdom

Tel: 020 7848 6648 International +44 20 7848 6648
Fax: 020 7848 6620 International +44 20 7848 6620
or 020 7848 6605 International +44 20 7848 6605

Opinions expressed are those of the author, not the institution.

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