Case-Control Study on Cellular and Cordless Telephones and the Risk for Acoustic Neuroma or Meningioma in Patients Diagnosed 2000–2003

Vol. 25, No. 3, 2005

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Original Paper

Case-Control Study on Cellular and Cordless Telephones and the Risk for Acoustic Neuroma or Meningioma in Patients Diagnosed 2000-2003
Lennart Hardell^a, Michael Carlberg^b, Kjell Hansson Mild^c

^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

Address of Corresponding Author

Neuroepidemiology 2005;25:120-128 (DOI: 10.1159/000086354)

Key Words

Microwaves
Digital phones
Analogue phones
Benign brain tumors
Cordless phones

Abstract

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.

Author Contacts

Dr. Lennart Hardell
University Hospital
SE-701 85 Örebro (Sweden)
Tel. +46 19 602 10 00, Fax +46 19 10 17 68
E-Mail lennart.hardell@orebroll.se

Article Information

Published online: June 13, 2005
Number of Print Pages : 9
Number of Figures : 0, Number of Tables : 7, Number of References : 22

Medline Abstract (ID 15956809)

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