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RE: Breast Cancer Study
Howard,
Two comments.
1. Is it possible that the study of Canadian women having fluoro was biased
because the subjects were patients who were receiving better medical care?
Diet? medications? What was the control group? Could it be something like
a "healthy worker effect?"
2. Are you suggesting the that British radiologist study that John Cameron
likes to quote could also be flawed?
-- John
-----Original Message-----
From: hflong@postoffice.pacbell.net
[mailto:hflong@postoffice.pacbell.net]
Sent: Saturday, June 22, 2002 2:38 AM
To: Thomas Jones
Cc: radsafe@list.vanderbilt.edu
Subject: Re: Breast Cancer Study
. . .
Animal and ecologic studies -like Canadian women having more fluoroscopy
(for
TB pneumothorax) having had LESS breast cancer - suggest to me that
mammography actually reduces breast cancer risk.
. . .
Technicians prior to 1950 are not good controls for those after 1960 because
Lubin's ."subsequent decline in risk" was associated with more enlightened
working conditions, and selection of technicians with less risk - as well as
with lower dose.
. . .
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