Cancer Institute study published
Last month we
referred to a study of cellular telephones and brain cancer that
was released early by the New England Journal of Medicine. The study
has now been published in the January 11 issue of the journal. An
editorial on the subject appears in the same issue.
This paper is
discussed further in the section "Research
Inskip PD, Tarone RE, Hatch EE, Wilcosky TC, et al. Cellular-telephone
use and brain tumors. New England Journal of Medicine 2001;344:79-86.
Trichopoulos D, Adami H-O. Cellular-telephone use and brain tumors.
New England Journal of Medicine 2001;344:133-134.
Melanoma of the eye linked to RF radiation
A recent article
in the journal "Epidemiology" describes a study of uveal
melanoma, a rare tumour of the eye. Stang and colleagues compared
118 cases with 475 controls. An increased risk was found for exposure
to RF-transmitting devices, such as radio sets and mobile phones.
by Inskip in the same issue discusses some of the limitations of
Stang's study. The main concerns are the lack of a detailed exposure
assessment and the small number (7) of cases exposed to mobile phones.
of this paper can be found in "Research
Stang A, Anastassiou G, Ahrens W, Bromen K, et al. The possible
role of radiofrequency radiation in the development of uveal melanoma.
Inskip PD. Frequent radiation exposures and frequency-dependent
effects: The eyes have it. Epidemiology 2001;12:1-4.
More on the Sutton Coldfield transmitter
- Epidemiology", we discuss a study by Dolk and colleagues
that examined cancer rates in the areas surrounding a TV transmitter
in Sutton Coldfield in England. In letters to the editor of the
American Journal of Epidemiology, this subject is explored further.
Cooper and colleagues analysed data from 1987-1994 (Dolk's study
covered the years 1974-1986), and found slight increases in some
cancers, compared with the expected numbers. Childhood male leukaemia
declined with distance from the transmitter. In Dolk's study, adult
leukaemia declined with distance.
In another letter,
Cherry argues that Dolk's study, and others near transmitters, support
"a causal relation between a range of adult cancers and chronic
exposure to very low mean-intensity RF radiation".
on these two letters. She questions Cherry's interpretation of the
original study, and notes that Cooper's study tend not to confirm
the existence of a persistent localised excess of cancer near the
transmitter of the magnitude she and her colleagues found.
Cooper D, Hemmings K, Saunders P. Re: "Cancer incidence near
radio and television transmitters in Great Britain. I. Sutton Coldfield
transmitter; II. All high power transmitters". (Letter). Am
J Epidemiol 2001;153:202-4.
Cherry N. Re: "Cancer incidence near radio and television transmitters
in Great Britain. I. Sutton Coldfield transmitter; II. All high
power transmitters". (Letter). Am J Epidemiol 2001;153:204-5.
Dolk H. The first author replies. (Letter). Am J Epidemiol 2001;153:205.