Mobile (cell) phones associated with a 70% increased risk of malignant brain tumours

This study was published in the International Journal of Oncology 2013 Dec;43(6):1833-45

 

Study title and authors:

Case-control study of the association between malignant brain tumours diagnosed between 2007 and 2009 and mobile and cordless phone use.

Hardell L, Carlberg M, Söderqvist F, Mild KH.

Department of Oncology, University Hospital, SE-701 85 Örebro, Sweden.

 

This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/24064953

Hardell notes that when mobile (cell) and cordless phones are used they emit radiofrequency electromagnetic fields (RF-EMFs) and the brain is the main target organ for the handheld phone. The International Agency for Research on Cancer (IARC) classified in May, 2011 RF-EMF as a group 2B, i.e. a 'possible' human carcinogen.

The aim of this study was to further explore the relationship between especially long-term use of wireless (mobile and cordless) phones and the development of malignant brain tumours. The study included 593 patients, aged 18-75 years, with a malignant brain tumour and 1,386 controls.

The study found:
(a) Use of a wireless phones (mobile or cordless) was associated with a 70% increased risk of malignant brain tumours.
(b) Use of a wireless phones (mobile or cordless) for more than 25 years was associated with a 200% increased risk of malignant brain tumours.

Hardell concluded: "This study confirmed previous results of an association between mobile and cordless phone use and malignant brain tumours. These findings provide support for the hypothesis that RF-EMFs play a role both in the initiation and promotion stages of carcinogenesis".

30% increase in brain tumours for cell (mobile) phone users

This study was published in the International Journal of Oncology 2003 Feb;22(2):399-407

Study title and authors:
Further aspects on cellular and cordless telephones and brain tumours.
Hardell L, Mild KH, Carlberg M.
Department of Oncology, University Hospital, S-701 85 Orebro, Sweden. lennart.hardell@orebroll.se

This study can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/12527940
 
The study compared 1,617 patients with brain tumours with a group of 1,470 free from brain tumours to investigate the effects of mobile phone use.

The researchers found
(a) A 30% increase in brain tumours on the same side of the brain that was used during cell (mobile) phone calls was observed.
(b) There was a 4.4 fold increase in non-malignant tumours in cell (mobile) phone users.

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Cell (mobile) phone use approximately doubles the risk of being diagnosed with a brain tumor

This paper was published in Surgical Neurology 2009 Sep;72(3):205-14; discussion 214-5

Study title and authors:
Cell phones and brain tumors: a review including the long-term epidemiologic data.
Khurana VG, Teo C, Kundi M, Hardell L, Carlberg M.
Australian National University, Australia. vgkhurana@gmail.com

This paper can be accessed at: http://www.ncbi.nlm.nih.gov/pubmed/19328536
 
This paper addressed the following question: is there evidence for an association between long-term cell (mobile) phone usage and the risk of developing a brain tumor?

The researchers found 11 studies in which statistics were available where users had being using their phones for a minimum of 10 years

The study found that cell (mobile) phone use approximately doubles the risk of being diagnosed with a brain tumor on the same ("ipsilateral") side of the head as that preferred for cell phone use.

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