Motorola 60g Manuel d'utilisateur télécharger pdf (Page 186)

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First, it is uncertain how to apply the results obtained in rats and

mice to humans. Second, many of the studies that showed

increased tumor development used animals that had already

been treated with cancer-causing chemicals, and other studies

exposed the animals to the RF virtually continuously—up to 22

hours per day.

For the past ﬁve years in the United States, the mobile phone

industry has supported research into the safety of mobile

phones. This research has resulted in two ﬁndings in particular

that merit additional study:

In a hospital-based, case-control study, researchers looked

for an association between mobile phone use and either

glioma (a type of brain cancer) or acoustic neuroma (a

benign tumor of the nerve sheath). No statistically

signiﬁcant association was found between mobile phone

use and acoustic neuroma. There was also no association

between mobile phone use and gliomas when all types of

types of gliomas were considered together. It should be

noted that the average length of mobile phone exposure in

this study was less than three years.

When 20 types of glioma were considered separately,

however, an association was found between mobile phone

use and one rare type of glioma, neuroepithelliomatous

tumors. It is possible with multiple comparisons of the same

sample that this association occurred by chance. Moreover,

the risk did not increase with how often the mobile phone

was used, or the length of the calls. In fact, the risk actually

decreased with cumulative hours of mobile phone use.

Most cancer causing agents increase risk with increased

exposure. An ongoing study of brain cancers by the

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Motorola 60g Manuel d'utilisateur Page 186