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Source of cancer data
Dr. Cohen,
Besides the SEER data, the following may of use.
http://www.dceg.cancer.gov/cgi-bin/atlas/ca-type?site=lun It appears to
provide more detailed information.
-- John
John Jacobus, MS
Certified Health Physicist
3050 Traymore Lane
Bowie, MD 20715-2024
E-mail: jenday1@email.msn.com (H)
-----Original Message-----
From: BERNARD L COHEN [mailto:blc+@PITT.EDU]
Sent: Tuesday, December 18, 2001 11:47 AM
To: John Williams
Cc: internet RADSAFE
Subject: Re: Re: Risks of low level radiation - New Scientist Article
. . .
> The
> inverse association disappeared when they used better SEER data.
--If the SEER data is better, I would like to know why. I
could not use SEER data because my study covered all states and Seer data
is not available for all states
If
> epidemiologists are too believe your findings for the whole country,
> they should hold for a state with the highest radon, finest gradation
> of ecologic units (1/16 of the total units you use)and Iowa only has
> 1% of the U.S. population.
--If there is something you don't "believe" about my findings,
please tell me what specifically. Or better still, submit a letter to the
Editor about it.
> The only answer I saw that you gave was
> that there must be some minority population causing Smith et al
> findings. I do not find it plausible given the lack of a large
> ethnic minority population in Iowa. Don't say you can explain it for
> any geographic region when you failed to respond to Field's challenge.
--I did not say anything like that. I said that there are problems
with data for a single state that are smoothed over when considering the
nation as a whole. I believe I gave several potential examples, including
the one you mention. A few other examples are statistical variations,
correlations between medical facilities and radon levels, correlations
between radon levels and other causes of lung cancer or other factors that
influence lung cancer rates, etc. If you would read my papers, you would
see that there is substantial variation in lung cancer vs radon
regressions in the various states, presumably due to such factors. But if
you average the results for the various states, the result is similar to
that for the nation as a whole.
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