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Prenatal exposure to cell phone use and neurodevelopment at 14 months
Martine Vrijheid1, David Martinez, Joan Forns
1Centre for Research in Environmental Epidemiology (CREAL), 08003 Barcelona, Spain. mvrijheid@creal.cat
Background:
Recently, an association was reported between prenatal and postnatal exposure to cell phones and neurobehavioral problems in children at the age of 7 years.
Methods:
A birth cohort was established in Sabadell, Spain between 2004 and 2006. Mothers completed questions about cell phone use in week 32 of the pregnancy (n = 587). Neurodevelopment of their children was tested at age 14 months using the Bayley Scales of Infant Development (n = 530).
Results:
We observed only small differences in neurodevelopment scores between the offspring of cell phone users and nonusers. Those of users had higher mental development scores and lower psychomotor development scores, which may be due to unmeasured confounding. There was no trend with amount of cell phone use within users.
Conclusion:
This study gives little evidence for an adverse effect of maternal cell phone use during pregnancy on the early neurodevelopment of offspring.
