By Dr Ananya Mandal, MD
A new study that looked at cell phone users under the age of 20 found no link between cell phone use and an increased risk for brain cancer. Researchers from the Swiss Tropical and Public Health Institute in Basel, Switzerland, studied data collected in Norway, Denmark, Sweden and Switzerland.
Dr. Keith Black of Cedars-Sinai Medical Center in Los Angeles said, “What we know is that the microwave radiations from cell phones may penetrate deeper into the child's brain. More of the radiation goes into their brain because their scalp is thinner.”
In this study researchers compared cell phone use in healthy children and 352 brain tumor patients between the ages of 7 and 19 between 2004 and 2008. The study also included 646 control subjects.
They found that 265 patients (75.3 per cent) and 466 control subjects (72.1 per cent) reported having spoken on a mobile phone more than 20 times prior to when the case patient was diagnosed with a tumor. Also, a slightly higher proportion of tumor patients versus control subjects — 55 per cent against 51 per cent — reported regular cell phone usage. But these differences were not statistically significant. In a subset of study participants for whom data was available from their cell phone company on their mobile usage, brain tumor risk was not found to be related to amount of use. No increased risk of brain tumors was observed for brain areas receiving the highest amount of exposure. The research comes out just two months after the World Health Organization categorized cell phones as “possibly carcinogenic.”