A study of more than 350,000 people over 18 years has found no association between long term use of mobile telephones and the risk of brain or central nervous system tumours.
The research, published in the British Medical Journal, is the largest study of its kind and followed over 400,000 mobile phone users from 1982 to 1995 and conducted follow-ups with the majority of these users in 1996 and 2002. The study found no link between long term mobile phone usage and brain/central nervous system tumours.
The study compared the number of tumours reported from 1990 to 2007 in Denmark and found that there was no overall increase of tumours found in long-term mobile phone users in comparison to those without mobiles. The authors suggest, however, that the monitoring of long-term mobile phone users should continue.