Vestibular Schwannoma, Tinnitus and
Cellular Telephones
Lennart Hardella,c Kjell Hansson Mildc,d Monica Sandströmd
Michael Carlberga Arne Hallquiste Anneli Påhlsonb
aDepartment of Oncology, and bDepartment of Neurology, University Hospital, Örebro,
cDepartment of Natural Sciences, Örebro University, Örebro, dNational Institute for Working Life, Umeå, and
eDepartment of Oncology/Pathology, Karolinska Institute, Radiumhemmet, Stockholm, Sweden
Abstract
Cases with tinnitus after using analogue cellular telephones
are presented. An increased odds ratio of 3.45,
95% confidence interval (CI) 1.77-6.76, was found for
vestibular schwannoma (VS) associated with the use of
analogue cell phones. During the time period 1960-1998,
the age-standardized incidence of VS in Sweden significantly
increased yearly by +2.53% (CI 1.71-3.35). A significant
increase in the incidence of VS was only found
for the latter of the two time periods 1960-1979 and
1980-1998. For all other brain tumors taken together, the
incidence significantly increased yearly by +0.80% (CI
0.59-1.02) for the time period 1960-1998, although the
increase was only significant for benign tumors other
than VS during 1960-1979.
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