Using a mobile phone does not increase the risk of developing the most common type of brain tumor, according to a study on Friday.
After a four-year survey, scientists at the Institute of Cancer Research in London and three British universities found no link between regular, long-term use of cell phones and glioma.
"Overall, we found no raised risk of glioma associated with regular mobile phone use and no association with time since first use, lifetime years of use, cumulative hours of use, or number of calls," said Professor Patricia McKinney, of the University of Leeds, in a report in the British Medical Journal.
She added that the results were consistent with the findings of most studies done in the United States and Europe.
Anthony Swerdlow, a co-author of the report, from the Institute of Cancer Research, said the survey is larger than any of the other published studies and part of a collaboration involving 13 countries.
During the past two decades, the use of mobile phones has risen rapidly worldwide but there has been no hard evidence to substantiate fears that the technology causes health problems ranging from headaches to brain tumors.
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