Moving radiofrequency radiation from Group 2B to 1 as a human carcinogen

The carcinogenic effect of radiofrequency electromagnetic fields (RF-EMF) on humans was evaluated at a meeting during 24 – 31 May 2011 at the International Agency for Research on Cancer (IARC) at WHO in Lyon, France. The Working Group categorised RF-EMF from mobile phones, and from other devices that emit similar non-ionising electromagnetic fields, as a Group 2B, i.e. a ‘possible’, human carcinogen.

After that meeting supportive evidence has come from e.g. the French CERENAT study and also our recent publication on glioma. An increased risk for acoustic neuroma associated with use of wireless phones was published by our research group after the meeting giving pooled results of our study periods 1997-2003 and 2007-2009. Also other studies have reported similar findings.

We evaluated the Hill viewpoints on association and causation used in the 1960’s in the debate on lung cancer risk among smokers. Using these viewpoints our summary was that RF-EMF exposure should be a Group 1 carcinogen according to IARC criteria. There is now a petition to support that notion aiming at alerting IARC to classify such exposure to cause human cancer. Those who want to support the petition can follow this link.

New study confirms increased risk for glioma associated with use of mobile phones and cordless phones

We published recently a pooled analysis of our case-control studies on glioma and use of mobile phones and cordless phones. The study has been published in Pathophysiology after pre-review and can be accessed via Internet. The results confirm a statistically significant increased risk for glioma and the risk increases with time from first use of the wireless phone and number of hours for use over the years. The risk is highest on the same side of the brain as the phone has been used, especially in the area with the highest exposure to microwaves, the temporal lobe, which would be expected.

These studies strengthen the 2011 classification by IARC at WHO that the microwave exposure is a ‘Possible human carcinogen’, Group 2B. In fact using the Hill viewpoints on association and causation it should be classified as Group 1, the agent causes human cancer. We have explored that fact in more detail in a previous article. The present results confirm that classification.

Our results have gained interest in many countries after a press release by Reuters and have also been discussed in the Finnish Medical newspaper. However, these worrying results for human health have not been discussed at all in Sweden, so the layman is uniformed about how important it is to avoid such exposure.