Women who smoke while pregnant are at greater risk of having children with high-functioning autism, like Asperger disorder. Thus the results of the preliminary findings of scientists that involved in U.S. Autism Surveillance, a program from Center for Disease Control and Prevention (CDC), United States.
"It's long enough to know that autism is common term for various disorders that damage social and communication skills," said Amy Kalkbrenner, assistant professor at University of Wisconsin-Milwaukee Joseph J. Zilber School of Public Health.
"What we see is that some autism spectrum disorders may be influenced by several factors such as whether the mother smoked during pregnancy," he explained.
These findings were published online on 25 April 2012 in journal Environmental Health Perspectives. Smoking during pregnancy is still prevalent in United States, although its has dangerous impact to the baby. Kalkbrenner found that about 13 percent of mothers involved in the study had smoked during pregnancy.
In his study, Kalkbrenner and colleagues used the data of thousands of birth certificates from 11 states that children diagnosed with autism by the CDC's Autism and Developmental Disabilities Monitoring Network (ADDMN). Of the 633,989 children, some of them were born in 1992, 1994, 1996 and 1998. The analysis found there were 3,315 children identified having autism spectrum disorder at age 8 years.
Even so, Kalkbrenner said, it still needs more research to determine the corellation between smoking and autism.
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