Study: no link between cell phones, tumors

COPENHAGEN, Denmark, April 11 (UPI) -- A study by the Danish Cancer Society in Copenhagen has found no link between cell phone use and brain tumors.

The study, published in the April 12 issue of Neurology, questioned 427 people with brain tumors and 822 people without brain tumors about their cell phone use. The study found no increased risk for brain tumors related to cell phone use, frequency of use, or number of years of use.

"These results are in line with other large studies on this question, including a recently published large-scale, population-based study by the Swedish Interphone Study Group," said study author Christoffer Johansen. "There have been a few studies that found an increased risk of brain tumors with cell phone use, but those studies have been criticized for problems with the study design."

However, Johansen said there were few long-term cell phone users or heavy cell phone users in the study. "In our study, few people reported regular cell phone use for 10 years or more," he said. "We won't be able to make any firm conclusions until we can confirm these results with studies with more long-term and heavy cell phone users."