A Report on Non-Ionizing Radiation

brain tumors: Microwave News Article Archive (2004 - )

January 22, 2007

An international team of researchers has found new evidence that long-term use of a mobile phone may lead to the development of a brain tumor on the side of the head the phone is used. In a study which will appear in an upcoming issue of the International Journal of Cancer, epidemiologists from five European countries report a nearly 40% increase in gliomas, a type of brain tumor, among those who had used a cell phone for ten or more years. The increase is statistically significant. In addition, there was a trend showing that the brain tumor risk increased with years of use. The new paper is posted on the journal's Web site.

March 10, 2005

The Karolinska group’s paper showing no increased risk of brain tumors among those who used a cell phone for ten or more years appears in the March 15 issue of the American Journal of Epidemiology. We first reported this result in December based on a brief announcement from Stockholm, but the published paper offers many more details.

One interesting item is the finding of a somewhat elevated risk of developing a glioma (a 60-80% increase) on the same side of the head as the phone was used. But, the Karolinska researchers also saw a lower than expected glioma risk on the opposite side of the head.

December 17, 2004

Epidemiologists at the Karolinska Institute in Stockholm have found no association between the use of cell phones and the risk of brain tumors.

“No increased risk was found for glioma or meningioma related to mobile phone use,” reports Stefan Lönn and coworkers at the Institute of Environmental Medicine. Lönn completed the study as part of his doctoral dissertation under the direction of Maria Feychting. This work is part of the Interphone study being coordinated by the International Agency for Research on Cancer (IARC) in Lyon, France.

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