[ RadSafe ] Limits of radiation epidemiology studies

[jjcohen]

Andy,
    Does this Gonzalez lecture reveal some  new understanding of the
relationship?
I wonder whether they might next discover hormesis?


----- Original Message -----
From: A Karam <paksbi at rit.edu>
To: RADSAFE <radsafe at radlab.nl>
Sent: Monday, February 07, 2005 1:09 PM
Subject: [ RadSafe ] Limits of radiation epidemiology studies


Abel Gonzalez had a very nice graphic in one of his recent lectures (I
think it was the Sievert Lecture, but it may have been the Taylor).  In
this, he showed the relationship between added dose and the size of the
study population needed to show an effect, using our current
epidemiological tools.  It clearly shows that, as dose drops, the study
population must increase to compensate.  At very low doses, the study
population is larger than the current population of the earth, putting
some constraints on what epidemiology can show us.

Abel's Sievert presentation can be found at this URL:

 http://www.irpa11.com (click on "Plenary Sessions" to call up link to
the presentation graphics)

Andy
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