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Cellular phones and cancer, braintumor

Increased chance of braintumor using Cellular and Cordless phones

Pooled analysis of two case-control studies on the use of cellular and cordless telephones and the risk of benign brain tumours diagnosed during 1997-2003  Int J Oncol. 2006 Feb;28(2):509-18.

Hardell L, Carlberg M, Hansson Mild K.

Department of Oncology, University Hospital, SE-701 85 Orebro, Sweden.
lennart.hardell@orebroll.se.

The use of cellular and cordless telephones and the risk of brain tumours is of concern since the brain is a high exposure area. We present the results of a pooled analysis of two case-control studies on benign brain tumours diagnosed during 1997-2003 including answers from 1,254 (88%) cases and 2,162 (89%) controls aged 20-80 years. For acoustic neuroma, the use of analogue cellular phones gave an odds ratio (OR) of 2.9 and a 95% confidence interval (CI) of 2.0-4.3; for digital cellular phones, OR=1.5; 95% CI=1.1-2.1; and for cordless telephones, OR=1.5, 95% CI=1.04-2.0. The highest OR was found for analogue phones with a latency period of >15 years; OR=3.8, 95% CI=1.4-10. Regarding meningioma, the results were as follows: for analogue phones, OR=1.3, 95% CI=0.99-1.7; for digital phones, OR=1.1, 95% CI=0.9-1.3; and for cordless phones, OR=1.1, 95% CI=0.9-1.4. In the multivariate analysis, a significantly increased risk of acoustic neuroma was found with the use of analogue phones.

PMID: 16391807


Mobile phone use and risk of acoustic neuroma: results of the Interphone case-control study in five North European countries

There is public concern that use of mobile phones could increase the risk of brain tumours. If such an effect exists, acoustic neuroma would be of particular concern because of the proximity of the acoustic nerve to the handset. We conducted, to a shared protocol, six population-based case-control studies in four Nordic countries and the UK to assess the risk of acoustic neuroma in relation to mobile phone use. Data were collected by personal interview from 678 cases of acoustic neuroma and 3553 controls. The risk of acoustic neuroma in relation to regular mobile phone use in the pooled data set was not raised (odds ratio (OR)=0.9, 95% confidence interval (CI): 0.7-1.1). There was no association of risk with duration of use, lifetime cumulative hours of use or number of calls, for phone use overall or for analogue or digital phones separately. Risk of a tumour on the same side of the head as reported phone use was raised for use for 10 years or longer (OR=1.8, 95% CI: 1.1-3.1). The study suggests that there is no substantial risk of acoustic neuroma in the first decade after starting mobile phone use. However, an increase in risk after longer term use or after a longer lag period could not be ruled out.

British Journal of Cancer (2005) 93, 842-848.
doi:10.1038/sj.bjc.6602764 Published online 30 August 2005

M J Schoemaker1, A J Swerdlow1, A Ahlbom2,13, A Auvinen3,10, K G Blaasaas4, E Cardis5, H Collatz Christensen6, M Feychting2, S J Hepworth7, C Johansen6, L Klćboe8, S Lönn2, P A McKinney7, K Muir9, J Raitanen10, T Salminen3, J Thomsen11 and T Tynes8,12

1 Section of Epidemiology, Institute of Cancer Research, Brookes Lawley Building, Sutton SM2 5NG, UK

2 Institute of Environmental Medicine, Karolinska Institute, Box 210, 171 77, Stockholm, Sweden

3 STUK-Radiation and Nuclear Safety Authority, 00881 Helsinki, Finland

4 Norwegian Armed Forces, Bygning 0028A, Sessvollmoen 2058, Norway

5 International Agency for Research on Cancer, 150 Cours Albert Thomas, 69372 Cedex 08, Lyon, France

6 Institute of Cancer Epidemiology, Danish Cancer Society, Strandboulevarden 49, 2100 Copenhagen, Denmark

7 Centre for Epidemiology and Biostatistics, University of Leeds, 30 Hyde Terrace, Leeds LS2 9LN, UK

8 The Cancer Registry of Norway, Institute of Population-based Cancer Research, Montebello, 0310 Oslo, Norway

9 Division of Epidemiology and Public Health, University of Nottingham, Nottingham NG7 2UH, UK

10 Tampere School of Public Health, University of Tampere, Tampere 33014, Finland

11 Department of Otolaryngology-Head and Neck Surgery, Gentofte Hospital, University of Copenhagen, DK-2900 Hellerup, Denmark

12 Norwegian Radiation Protection Authority, PO Box 55, 1332 Osteras, Norway

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