[ RadSafe ] Sunlight exposure loweres lymphoma risk

[Whitman, Richard T]

Folks,
Increase compared to what baseline?

And how about these variables?


We live longer.  We smoke less.  We eat differently.  Some of us exercise
more.  Foods are more often processed with preservatives. The air is
cleaner.

Are the populations large enough and the same or greater in number, age
distrubution, sex, etc?  Is there a good and comparable control population?

A single data point is not enough to draw a conclusion or a trend line.

Rick Whitman

____________________Reply Separator____________________
Subject:    Re: [ RadSafe ] Sunlight exposure loweres lymphoma risk
Author:     radsafe-bounces at radlab.nl
Date:       5/11/2005 8:49 AM




       Isn't biology fun.  All cancers are not created equal.

       --- Marcel Schouwenburg
       <M.Schouwenburg at TNW.TUDelft.NL> wrote:
       > Sunlight exposure reduces lymphoma risk
       > By Angelo DePalma, MedPage Today Staff Writer
       > Reviewed by Zalman S. Agus, MD; Emeritus Professor
       > at the University of
       > Pennsylvania School of Medicine
       >
       <http://www.medpagetoday.com/reviewer.cfm?reviewerid=30>
       > February 02, 2005
       > http://www.medpagetoday.com/tbindex1.cfm?tbid=436
       >
       > For unknown reasons cases of malignant lymphoma have
       > tripled over the
       > past 40 years. One hypothesis, which connects
       > sunlight exposure to
       > increased risk, has been dispelled by researchers
       > from Sweden's
       > Karolinska Institute and Uppsala University. Writing
       > in The Journal of
       > the National Cancer Institute, Smedby et al have
       > uncovered a negative,
       > statistically significant correlation between
       > exposure to sunlight and
       > subsequent development of malignant lymphomas. The
       > study shows that UV
       > exposure from the sun and other sources apparently
       > reduces risk,
       > particularly for non-Hodgkin's lymphoma, by up to
       > 40%.
       > . . .
       > Curiously, in this study a history of skin cancer is
       > associated with a
       > doubling of risks for both Hodgkin's and
       > non-Hodgkin's lymphoma. The
       > authors conclude that this association is probably
       > independent of UV
       > exposure.
       > . . .

       +++++++++++++++++++
       "Embarrassed, obscure and feeble sentences are generally, if
       not always, the result of embarrassed, obscure and feeble
       thought."
       Hugh Blair, 1783

       -- John
       John Jacobus, MS
       Certified Health Physicist
       e-mail:  crispy_bird at yahoo.com

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