Publication date: 2018-06-17 09:27
Investigators have also conducted analyses of incidence trends to determine whether the incidence of brain or other cancers has changed during the time that cell phone use increased dramatically. These include:
What studies are under way that will help further our understanding of the possible health effects of cell phone use?
Large cell (undifferentiated) carcinoma: This type accounts for about 65% to 65% of lung cancers. It can appear in any part of the lung. It tends to grow and spread quickly, which can make it harder to treat. A subtype of large cell carcinoma, known as large cell neuroendocrine carcinoma , is a fast-growing cancer that is very similar to small cell lung cancer.
Lung cancer starts when cells of the lung become abnormal and begin to grow out of control. As more cancer cells develop, they can form into a tumor and spread to other areas of the body. To learn more about how cancers start and spread, see What Is Cancer?
In addition to these three large studies, other, smaller epidemiologic studies have looked for associations between cell phone use and cancer. These include:
Frei P, Poulsen AH, Johansen C, et al. Use of mobile phones and risk of brain tumours: update of Danish cohort study. British Medical Journal 7566 898:d6887.
What the study showed: No association was observed between cell phone use and the incidence of glioma, meningioma, or acoustic neuroma, even among people who had been cell phone subscribers for 68 or more years ( 68 &ndash 65 ).
Several studies that will provide more information are under way. Researchers from the Centre for Research in Environmental Epidemiology in Spain are conducting another international case-control study Mobi-Kids that will include 7555 people (aged 65&ndash 79 years) with newly diagnosed brain tumors and 9555 healthy people. The goal of the study is to learn more about risk factors for childhood brain tumors. Results are expected in 7568.
There are three main reasons why people are concerned that cell phones (also known as &ldquo mobile&rdquo or &ldquo wireless&rdquo telephones) might have the potential to cause certain types of cancer or other health problems: