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R: R: st: multile comparison among incidence rates

From   "Carlo Lazzaro" <>
To   <>
Subject   R: R: st: multile comparison among incidence rates
Date   Fri, 4 Apr 2008 09:47:46 +0200

Dear Maarten,

thnks a lot for your kind reply and for pointing out the feasibiliy of
Bonferroni correection for tests involving dichotomous variables.
BTW, have you got any reference about that?

Thanks a lot again and enjoy your W-E.

Kind Regards,


-----Messaggio originale-----
[] Per conto di Maarten buis
Inviato: giovedý 3 aprile 2008 22.19
Oggetto: Re: R: st: multile comparison among incidence rates 

--- Carlo Lazzaro <> wrote:
> I have in mind something like multiple comparisons with Bonferroni's
> correction via ANOVA with continuous variables, but I do not know
> whether a similar procedure does exist in the dichotomous variables
> setting (I have unsuccessfully scanned some epidemiology textbook
> searching for this issue, but I was not able to find nothing more
> than chi2 and two-sample comparisons).

Bonferroni like adjustements for multiple testing apply for any test,
including tests involving dichotomous variables. Some tools for
implementing these tests are available through the undocumented
-_mtest- command, see -help _mtest- (for those who are surprised that
an undocumented command has an helpfile, see -help undocumented-).

Hope this helps,

Maarten L. Buis
Department of Social Research Methodology
Vrije Universiteit Amsterdam
Boelelaan 1081
1081 HV Amsterdam
The Netherlands

visiting address:
Buitenveldertselaan 3 (Metropolitan), room Z434

+31 20 5986715

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