Long-term study over 30 years finds no carcinogenic effects of cell phones
It has long been speculated whether cell phones can cause cancer. Researchers have now found that long-term use of cell phones does not increase the likelihood of brain tumors.
Scientists from the University of Sydney discovered in a comprehensive 30-year study that there is no increased risk of developing brain tumors if people use cell phones for a long time. The doctors published the results of their study in the journal "Cancer Epidemiology".
Study considered cancer and cell phone usage data
The researchers examined the occurrence of brain tumors in the population in Australia. The study started in 1982 and ended in 2013. The medical team found that there is no statistical evidence that people use a cell phone to increase the likelihood of cancer. Over the 30 years, the results showed only a slight increase in brain cancer in men, while the rate in women was stable, the experts say. The team was able to examine data from 19,858 men and 14,222 women diagnosed with brain cancer during the study period. In addition, the cell phone usage data from 1987 to 2012 were taken into account, the doctors explained.
Around 90 percent of the population today use a mobile phone
The proportion of the population using mobile phones has increased extremely in the last 20 years. In 1993, around 9 percent still used a mobile phone, and today it is around 90 percent, the scientists say. In fact, the study found that the study showed a significant increase in the incidence of brain cancer, which started in 1982, five years before the introduction of mobile phones. The increase is simply due to an improvement in diagnoses, explains lead author Professor Simon Chapman of the University of Sydney. Australia has been an excellent area for the study because all cancer cases must be registered by law, the professor added. Previous research from the United States, England, New Zealand and other countries supports the current results.
Further studies on the subject are carried out internationally
In 2008, Imperial College London scientists also started a 10-year study to find out if cell phones cause cancer. The survey included 200,000 participants, 90,000 of whom are British. Researchers in Denmark and Sweden are also conducting similar studies. The results of the Australian study do not make these studies superfluous, but there is growing evidence that long-term use of mobile phones does not appear to be carcinogenic, the authors explain.
Very low probability of a connection
The observed stability of brain cancer incidence in Australia between 1982 and 2012 suggests that the likelihood of such an illness is not related to cell phone use, the experts explain. In addition, the observed increase in brain cancer in people over 70 is highly unlikely to have anything to do with the use of cell phones, says Professor Chapman. (as)