From Dariusz Leszczynski’s blog: Between a Rock and a Hard Place.
Epidemiological evidence is considered as the most important evidence when evaluating possibility of health effects induced by radiation emitted by wireless communication devices (RF-EMF). I disagree with this notion because of the intrinsic limitations of epidemiological method. It is too crude method to give reliable answers. I am not alone in this opinion. Notably, Michael Repacholi, former Head of the WHO EMF Project has similar opinion and he said in his Guest Blog on BRHP: “my concern is that there is an over-reliance on epidemiology studies.”
The problem with the, so far, executed epidemiological studies in RF-EMF area is the inadequate radiation dosimetry.
In some studies, like the case-control studies (Interphone, Hardell and CERENAT) the dosimetry is based on what person remembers. It is very crude information. However, in defense of the planners of case-control studies, it is necessary to mention that when the Interphone was being planned, and I participated in these discussions as then Head of Radiation Biology Laboratory of STUK, scientists asked network operators to provide information on the use of cell phones by study subjects. Operators refused, calling the information “trade secret”. So, the scientists had to rely on peoples’ memory…
Situation of dosimetry data in cohort studies is even worse. Scientists attempted to avoid reliance on users’ memory but, instead of improving exposure data, they made it worse. The dosimetry evidence in cohort studies, Danish Cohort and Million Women Study, is absolutely inadequate to use it as proof of no risk of cancer from the use of cell phones.
However, the ICNIRP scientists just do so. They quote Danish Cohort and Million Women Study as the evidence of no cancer risk. At the same time they simply dismiss the evidence provided by the case control studies.
In the past, I wrote critically about the Danish Cohort and the UK’s Million Women Study.
My critical evaluation of the Danish Cohort was published in The Scientist Magazine whereas evaluation of the Million Women Study I published in my blog on The Washington Times Communities site.
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