Case-Control Study on Cellular and Cordless Telephones and the Risk for Acoustic Neuroma or Meningioma in Patients Diagnosed 2000–2003Hardell L. · Carlberg M. · Hansson Mild K.
aDepartment of Oncology, University Hospital, and Department of Natural Sciences, Örebro University, bDepartment of Oncology, University Hospital, and cNational Institute for Working Life and Department of Natural Sciences, Örebro University, Örebro, Sweden
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.
Dr. Lennart Hardell
SE–701 85 Örebro (Sweden)
Tel. +46 19 602 10 00, Fax +46 19 10 17 68
Published online: June 13, 2005
Number of Print Pages : 9
Number of Figures : 0, Number of Tables : 7, Number of References : 22
Vol. 25, No. 3, Year 2005 (Cover Date: Released September 2005)
Journal Editor: Román, G.C. (San Antonio, Tex.)
ISSN: 0251–5350 (print), 1423–0208 (Online)
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