A small area study of cancer incidence in 1974-1986 was carried out to investigate an unconfirmed report of a « cluster » of leukemias and lymphomas near the Sutton Coldfield television (TV) and frequency modulation (FM) radio transmitter in the West Midlands, England.
The study used a national database of postcoded cancer registrations, and population and socioeconomic data from the 1981 census.
Selected cancers were hematopoietic and lymphatic, brain, skin, eye, male breast, female breast, lung, colorectal, stomach, prostate, and bladder.
Expected numbers of cancers in small areas were calculated by indirect standardization, with stratification for a small area socioeconomic index.
The study area was defined as a 10 km radius circle around the transmitter, within which 10 bands of increasing distance from the transmitter were defined as a basis for testing for a decline in risk with distance, and an inner area was arbitrarily defined for descriptive purposes as a 2 km radius circle.
The risk of adult leukemia within 2 km was 1.83 (95% confidence interval 1.22-2.74), and there was a significant decline in risk with distance from the transmitter (p=0.001).
These findings appeared to be consistent over the periods 1974-1980 and 1981-1986, and were probably largely independent of the initially reported cluster, which appeared to concern mainly a later period. (...)
Mots-clés Pascal : Tumeur maligne, Leucémie, Champ électromagnétique, Santé et environnement, Onde radioélectrique, Epidémiologie, Toxicité, Incidence, Facteur risque, Homme, Grande Bretagne, Royaume Uni, Europe, Emetteur télévision, Hémopathie maligne
Mots-clés Pascal anglais : Malignant tumor, Leukemia, Electromagnetic field, Health and environment, Radio wave, Epidemiology, Toxicity, Incidence, Risk factor, Human, Great Britain, United Kingdom, Europe, Television transmitter, Malignant hemopathy
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 97-0131525
Code Inist : 002B30A02B. Création : 21/05/1997.