Re: Debate is over - mistatements of fact

[epirad@mchsi.com]

Dr. Cohen,



At least half of the NCRP committee is not comprised of either 

biostatisticians or epidemiologist. Am I correct in stating that you requested 

NCRP to review your work?  What expertise would you have envisioned for the 

committee you requested?



You did not address the second part of my email.  



"You are not correct in stating (once again by the way) that 

Epidemiologists are only accustomed to using well standardized approaches 

designed to determine dose-response relationships, and my work does not fall 

into that category.



You are correct that your work can not determine a dose response, but you are 

misleading people by suggesting either Epidemiologist do not perform studies 



that do not assess a dose response (eg Ecologic) or suggesting ecologic 

studies do not fall into the realm of epidemiology.   



Epidemiologist have the expertise to review your ecologic studies. Please 

provide examples of physicist that have performed ecologic studies.  

Epidemiologist perform them, but unlike you, use them to formulate hypotheses 

not test them.



see also http://www.vanderbilt.edu/radsafe/0206/msg00199.html



Search ecologic study on the web and let me know how many you find performed 

by Physicist.



These were my first hits when I searched using Google- The fourth one provides 

a nice summary of ecologic studies.



http://ehpnet1.niehs.nih.gov/docs/2002/110p319-324reynolds/abstract.html

http://microbiology.mtsinai.on.ca/research/ecologic.shtml

http://www.thorne.com/altmedrev/fulltext/cancer4-3.html

http://hsrd.durham.med.va.gov/ERIC/Educat/Notebook/ERICIssue12.pdf";





Bill Field





> 

> On Thu, 12 Jun 2003 epirad@mchsi.com wrote:

> >

> > There is one Epidemiologist

> > There is one Biostatistician

> > There is one Physicist

> > and a member or two of the NCRP who are not epidemiologists, but rather HPs

> > including a president of the NCRP.

> > You stated, the "NCRP Committee is dominated by Epidemiologists"?

> 

> 	--I do not distinguish between an Epidemiologist and a

> Biostatistician. The Chairman is one of these, and he seemed to dominate

> most of the discussion in my one meeting with them

> 

> 

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