The incidence of brain tumours is increasing in several countries. In spite of that some scientists claim that based on these findings it is unlikely that the use of wireless telephones (mobile phones and cordless phones; DECT) gives and increased risk of brain tumours.
Interestingly, a new recently published study based on open-access databases finds that the only exogenous risk factor consistently associated with higher incidence of brain and nervous system tumours is the penetration rate of mobile phone subscriptions. These ecological results show latency between exposure and clinical onset of the disease of at least 11-12 years, but probably more than 20 years.
The findings are in accordance with the results by the Hardell group in Sweden and the WHO Interphone study on use of wireless phones (cordless phones not included in Interphone) and the risk of brain tumours. Using 10 years or more latency a statistically significantly increased risk was found for glioma and acoustic neuroma, types of brain tumours. An overview of these findings was recently published by the Hardell group.
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