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Re: st: Sample size calculation under poisson distribution
From
Ronan Conroy <[email protected]>
To
"[email protected]" <[email protected]>
Subject
Re: st: Sample size calculation under poisson distribution
Date
Wed, 9 Feb 2011 09:52:27 +0000
On 8 Feb 2011, at 12:18, Munyaradzi Dimairo wrote:
> Hi Folks
>
> I'm carrying out a sample size calculation for a clinical trial under the
> poisson model. Parameter of interest is the mean rate ratio and i am just
> wondering if there is a stata user written command to do this in STATA 11?
The calculation is very easy by hand, and is documented in Van Belle in a freely available chapter from his fascinating book "Statistical Rules of Thumb"
http://vanbelle.org/chapters%5Cwebchapter2.pdf
Have a look at section 2.7.
Ronán Conroy
[email protected]
Associate Professor
Division of Population Health Sciences
Royal College of Surgeons in Ireland
Beaux Lane House
Dublin 2
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