Neuronal cancers are rare and account for about 1 % of all adult brain cancer types. There are no known risk factors for neuronal cancer. A causal association with mobile telephone use would be expected to increase the incidence rate over time.The incidence rates in time periods 1973 to 1985 and 1986 to 2002 were compared.
The age-adjusted incidence rates for 1973 to 1985 and for 1986 to 2002 were similar (SIR 0.01). Starting in 1984 the mobile phone use has grown exponentially up to over 200,000,000 subscribers in the USA in December 2005.
The results indicate that mobile phone use is unrelated to the risk of neuronal cancers.