Written by sciencedaily.com Monday, 24 October 2011 17:07
Overall, 10,729 central nervous system tumors occurred in the study period, 1990 to 2007.
There is no link between long-term use of mobile phones and tumors of the brain or central nervous system, finds new research published online in the British Medical Journal.
In what is described as the largest study on the subject to date, Danish researchers found no evidence that the risk of brain tumors was raised among 358,403 mobile phone subscribers over an 18-year period.
The number of people using mobile phones is constantly rising with more than five billion subscriptions worldwide in 2010. This has led to concerns about potential adverse health effects, particularly tumors of the central nervous system.
Previous studies on a possible link between phone use and tumors have been inconclusive particularly on long-term use of mobile phones. Some of this earlier work took the form of case control studies involving small numbers of long-term users and were shown to be prone to error and bias. The International Agency for Research on Cancer (IARC) recently classified radio frequency electromagnetic fields, as emitted by mobile phones, as possibly carcinogenic to humans.