20 January, 2006 21:34 GMT
A team of British researchers found that those who reported regularly using mobile phones were not at a greater overall risk of developing glioma, the most common form of brain tumor.
Using a mobile phone is not linked to an increased risk of brain tumors, researchers said today. The largest study completed so far on mobile use and brain tumor risks suggested that there was no association between the two.
But the researchers said that mobile phones had only been in widespread use for about 10 years, meaning the long-term effects were still unknown.
Subjects Queried on Mobile-Phone Use
The latest study, published online in the
British Medical Journal, involved 966 people with glioma -- the most common type of brain tumor -- and 1,716 healthy volunteers who acted as a comparison.
The two groups were interviewed about their use of mobile phones in the past, such as how long they had used them, how often they made calls and for how long, and on which side of their head they held the phone.
No Greater Overall Risk
The researchers, from the Universities of Leeds, Nottingham and Manchester and the Institute of Cancer Research in London, found that those who reported regularly using mobile phones were not at a greater overall risk of developing glioma.
Their study, from December 2000 to February 2004, focused on several regions, including the West Midlands.
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