WEDNESDAY, July 27 (HealthDay News) -- Children who use cell phones don't seem to face an increased risk of brain cancer, compared to children who don't use them, a new study contends.
But, the study authors and other experts cautioned that more research is needed.
With the increase in cell phone use among kids, some worry that radiation from the devices can increase the risk for brain tumors. Children's brains are still developing, and because their heads are smaller radiofrequency electromagnetic fields may penetrate areas deeper in the brain, some researchers say.
"The [study] results are reassuring, given the widespread use of mobile phones by children and adolescents," said lead author Martin Roosli, an assistant professor at the Swiss Tropical and Public Health Institute in Basel, Switzerland.
"However," he added, "uncertainties remain regarding long-term use. Thus, further careful monitoring whether brain tumor incidence is increasing in this age group is important."
The findings were published July 27 in the Journal of the National Cancer Institute.
For the study, Roosli's team collected data on 352 children and adolescents aged 7-19 with brain cancer, and compared them to 646 similar children who did not have brain cancer. The children came from Denmark, Norway, Sweden and Switzerland. The researchers also interviewed the children and asked them about their cell phone use.
The researchers found that children with brain tumors didn't use cell phone more than those without tumors. Specifically, 75.3 percent of the children with brain tumors said they had used a cell phone more than 20 times before being diagnosed with their tumor. Among those children without cancer, 72.1 percent reported similar cell phone use.
Among children with tumors, 55 percent said they used a cell phone regularly, compared to 51 percent of children withou
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