Case-control study on cellular and cordless telephones and the risk for acoustic neuroma or meningioma in patients diagnosed 2000-2003.

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2005-08-24
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We performed a case control study on the use of cellular and cordless telephones and the risk for brain tumors We report the results for benign brain tumors with data from 413 cases 89 response rate 305 with meningioma 84 with acoustic neuroma 24 with other types and 692 controls 84 response rate For meningioma analogue phones yielded odds ratio OR 1 7 95 confidence interval CI 0 97 3 0 increasing to OR 2 1 95 CI 1 1 4 3 with a 10 year latency period Also digital cellular phones and cordless phones increased the risk to some extent For acoustic neuroma analogue phones gave OR 4 2 95 CI 1 8 10 increasing to OR 8 4 95 CI 1 6 45 with a 15 year latency period but based on low numbers Digital phones yielded OR 2 0 95 CI 1 05 3 8 whereas for cordless phones OR was not significantly increased In the multivariate analysis analogue phones represented a significant risk factor for acoustic neuroma
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