A measurement study of residential magnetic fields and brain tumors in children that was added onto an ongoing case-control interview study in Los Angeles County, California, included 298 children under age 20 years with a primary brain tumor diagnosed from 1984 to 1991 and 298 control children identified by random digit dialing.
Magnetic fields were determined for all Los Angeles homes where these 596 children lived from conception to diagnosis (1,131 homes) by mapping and coding the wiring configurations outside the home and by taking a series of exterior spot and profile measurements.
In addition, for a subset of subjects (35% ; 211 homes) 24-hour measurements were taken in the child's room and one other room.
Although measured fields are consistently highest in the highest of the five wire code categories, fields in homes in this category are much lower in Los Angeles than in Denver, where the code originated.
Brain tumor risk appears not to relate to measured fields inside (p for trend for child's room=0.98) or outside (p for trend for front wall=0.82) the home.
An apparent increase in risk among children living at diagnosis in homes with underground wiring appears to be an artifact introduced by using current controls for historical cases because this apparent excess risk disappeared in an analysis restricted to the later years of the study when cases and controls were accrued concurrently.
Our study does not show an overall association of pediatric ...
Mots-clés Pascal : Tumeur maligne, Encéphale, Enfant, Homme, Epidémiologie, Champ magnétique, Toxicité, Logement habitation, Californie, Etats Unis, Amérique du Nord, Amérique, Encéphale pathologie, Système nerveux central pathologie, Système nerveux pathologie
Mots-clés Pascal anglais : Malignant tumor, Brain (vertebrata), Child, Human, Epidemiology, Magnetic field, Toxicity, Housing, California, United States, North America, America, Cerebral disorder, Central nervous system disease, Nervous system diseases
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 96-0086495
Code Inist : 002B17E. Création : 199608.