our data suggest an increased risk of acoustic neuroma associated with
mobile phone use of at least 10 years' duration.

http://www.ncbi.nlm.nih.gov/entrez/q...&dopt=Citation

Mobile phone use and the risk of acoustic neuroma.

Lonn S, Ahlbom A, Hall P, Feychting M.

Institute of Environmental Medicine, Karolinska Institutet, S-171 77 Stockholm, Sweden. Stefan.Lonn@imm.ki.se

BACKGROUND: Radiofrequency exposure from mobile phones is concentrated to
the tissue closest to the handset, which includes the auditory nerve. If
this type of exposure increases tumor risk, acoustic neuroma would be a
potential concern. METHODS: In this population-based case-control study we
identified all cases age 20 to 69 years diagnosed with acoustic neuroma
during 1999 to 2002 in certain parts of Sweden. Controls were randomly
selected from the study base, stratified on age, sex, and residential
area. Detailed information about mobile phone use and other environmental
exposures was collected from 148 (93%) cases and 604 (72%) controls.
RESULTS: The overall odds ratio for acoustic neuroma associated with
regular mobile phone use was 1.0 (95% confidence interval = 0.6-1.5). Ten
years after the start of mobile phone use the estimates relative risk
increased to 1.9 (0.9-4.1); when restricting to tumors on the same side of
the head as the phone was normally used, the relative risk was 3.9
(1.6-9.5). CONCLUSIONS: Our findings do not indicate an increased risk of
acoustic neuroma related to short-term mobile phone use after a short
latency period. However, our data suggest an increased risk of acoustic
neuroma associated with mobile phone use of at least 10 years' duration.