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Re: st: Use of the term 'relative risk ratio'


From   Roger Newson <[email protected]>
To   [email protected]
Subject   Re: st: Use of the term 'relative risk ratio'
Date   Thu, 21 Apr 2005 11:56:07 +0100

At 11:25 21/04/2005, Ronan Conroy wrote:
I have a reviewer who is grumbling about the use of 'relative risk ratio' to describe the effect estimates from multinomial logistic regression. And it's the second time this has happened. The reviewer feels that they ought to be called odds ratios, to prevent confusion with relative risks (and that is a good point).

I would like to preserve the distinction between vanilla-flavour odds ratios and relative risk ratios, but am a little unhappy that the term is causing more heat than light.

Has anyone else experienced the problem? Is there a more useful way of describing RRRs out there?
If I wanted to stress that an odds ratio is multinomial instead of binomial (or "vanilla-flavour" in Ronan's terminology), then I would call it a multinomial odds ratio. The "RRR" of -mlogit- is definitely not a relative risk ratio, although, in a case-control study, it may estimate a relative risk ratio or even a plain relative risk.

I hope this helps.

Roger



--
Roger Newson
Lecturer in Medical Statistics
Department of Public Health Sciences
Division of Asthma, Allergy and Lung Biology
King's College London

5th Floor, Capital House
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United Kingdom

Tel: 020 7848 6648 International +44 20 7848 6648
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Email: [email protected]
Website: http://phs.kcl.ac.uk/rogernewson/

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

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