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Possible Link Found Between Tumors and Mobile Phone Use

Last Updated: October 14, 2009.

There is a possible link between mobile phone use and higher risk of tumors, but studies with a higher level of evidence are needed for confirmation, according to a study published online Oct. 13 in the Journal of Clinical Oncology.

WEDNESDAY, Oct. 14 (HealthDay News) -- There is a possible link between mobile phone use and higher risk of tumors, but studies with a higher level of evidence are needed for confirmation, according to a study published online Oct. 13 in the Journal of Clinical Oncology.

Seung-Kwon Myung, M.D., of the National Cancer Center in Goyang, South Korea, and colleagues conducted a meta-analysis of 23 case-control studies comprising 37,916 participants, of which 12,344 were patient cases and 25,572 were controls.

When the researchers looked at the data for all 23 studies, they found no association with mobile phone use and risk of tumors; however, when they analyzed the eight studies that used blinding, they found there was a harmful effect from mobile phone use, while the 15 studies that did not use blinding showed a protective effect. In 13 studies, using a cell phone for 10 years or more was associated with higher odds of a tumor.

"We found a large discrepancy in the association between mobile phone use and tumor risk by research group, which is confounded with the methodologic quality of the research," the authors write. "Our findings should be confirmed in prospective cohort studies to provide a higher level of evidence."

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