• 26 JAN 06
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    Latest Lennart Hardell et al study on benign brain tumors

    From Eileen O”Connor:


    Issued January 24, 2006

    Washington, D.C. —- A new study will be published in the February issue of the International Journal of Oncology by Dr. Lennart Hardell and colleagues showing statistically significant increases in the risk of benign brain tumors, especially acoustic neuromas, following the use of mobile telephones. This study is particularly important because acoustic neuromas are considered to be a signal tumor for other types of malignant and benign brain lesions. These tumors occur in areas with the highest radio frequency radiation exposure during calls.

    Of primary concern is the finding that the greatest risk of developing these tumors was for persons who were first exposed before the age of twenty years. Thus, this is the first published study directly suggesting higher risks of tumors among teenagers who use mobile telephones.

    Other key points regarding this study are as follows:

    The study includes the largest analysis of benign tumors done to date and covers tumors diagnosed as recently as 2003. The study shows a dose-response relationship where greater numbers of hours of phone use results in ever increasing risks of developing tumors. This is particularly important because imprecision in measuring actual radiation exposure from hours of use tend to mask risks “” thus, the risk increases presented in the study are likely to be underestimates, with true risk increases being higher.

    Significantly greater risk is associated with having used mobile phones for more than 15 years, a finding consistent with other studies showing that risks dramatically increase after six and ten years of use.

    Index Medicus study reference: “Pooled analysis of two case-control studies of the use of cellular and coreless telephones and the risk of benign brain tumours diagnosed during 1997-2003″, International Journal of Oncology 28: 509-518, 2006)

    Science and Public Policy Institute
    Safe Wireless Initiative

    January 24, 2006

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