A Danish study published in the Journal of Epidemiology and Community Health concluded that pregnant women who regularly use cell phones are at greater risk of giving birth to children with behavioral problems.
The researchers had previously studied an initial group of 13,000 mothers and their children taken from the Danish National Birth Cohort (DNBC) and were later arrualte about 100,000 women who were pregnant between 1996 and 2002, with the aim to monitor long-term health of their children.
Mothers were asked details about their lifestyle, diet and environmental factors in the course of four lengthy telephone interviews during and after pregnancy.
When their children reached the age of 7 years, the mothers were heard again to assess the health of children and also their behavior on the basis of validated parameters. Data were collected also use the phone during pregnancy and by their children.
In both groups, was assessed a rate of about 3% of children with behavioral problems, and similar percentages have been classified with events abnormal behavior.
Those exposed before birth to mobile phones had 40% more likely to present behavioral problems, while those with no prenatal exposure, but with cell phone use at the age of 7 years showed the 20% more abnormal behavior.
The study's authors argue that the new results reduce the likelihood that the data is due to a random result. The study highlighted the need for further research, suggesting the possibility that the effect of electromagnetic field of the cell acting on the fetus, not because of the thermal effect, which was considered minimal for the type of situation, but not to other mechanisms - heat that must be investigated.
Source: ScienceDaily, December 7, 2010
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