New York: Moms-to-be please note! Exposure to secondhand smoke during pregnancy may increase children`s risk of developing behaviour problems, a new study has warned. The study showed that children whose mothers were exposed to secondhand smoke for at least 30 minutes daily were more than twice as likely to have attention and aggression problems at age 5 as the children whose mothers reported no secondhand smoke exposure. This is one of the first studies to link a mother`s exposure to secondhand smoke during pregnancy to child behaviour problems. Researchers led by Jianghong Liu, associate professor of nursing at the University of Pennsylvania School of Nursing evaluated more than 600 mother-child pairs in Jintan, China.
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