Electromagnetic Field Toxicology Reporter

Evaluation and Assessment of Extremely Low Frequency EMF Bioeffects
Volume 1, Number 2, June 1999

Epidemiologic Studies of Residential EMF Exposures

by Robert B. Goldberg, Ph.D., Editor

Summary

In this article we evaluate a study concerned with exposure assessment methods used in the various epidemiological studies of EMF exposure effects. Indirect measurement of EMF exposure by use of wire codes is compared to direct measurement by use of magnetic field meters on site. A research team from Yale University examined possible sources of error in wire codes. They specifically looked for patterns of correlation between wire codes and external factors such as socioeconomic and behavioral factors that might confound the use of wire codes. A second study reported here evaluated the methodology of a previous study which looked for possible associations between electric blanket use and breast cancer risk in women. A study is summarized here which was done in New Zealand to evaluate the cancer risk associated with EMF exposures among children identified from records of newly diagnosed cancer patients. A second study of residential EMF exposure and childhood cancer from the United States is summarized. A current analysis is presented of an older Swedish residential study of leukemia risk for children who lived near high voltage transmission lines. This article concludes with a summary of a study reviewing the available epidemiologic evidence for associations between childhood cancer and various environmental agents including ELF EMFs. [four pages, 12 references].

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