Mobile phones don't definitely cause cancer, but the research
that leads to that conclusion may be flawed, say researchers who
have gone through 23 controlled studies on the issue.
Researchers at South Korea's National Cancer Centre found that
the "methodologic quality" and therefore bias of the studies varied
widely. Those that found mobiles posed less risk tended to have
lower "quality" and therefore more bias. Those with more "quality"
tended to suggest there was a link, they said in a
study for the US Centers for Disease Control and Prevention
published in the Journal of Clinical Oncology yesterday.
There is a 2% greater chance that a mobile phone user will
develop a malignant or a benign tumors, compared to a non-phone
user, the researchers said.
Based on the low bias, case controlled studies, there was
possible evidence linking mobile phone use to an increased risk of
tumors, they said.