RESEARCHER University of California found that older mothers more likely to have autistic children than women who give birth at a younger age.
risk of autism..Researchers examined the records of data from nearly 5 million children in California during 1990 and 1999. In this period, the incidence of autism increased by 600 percent statewide.
The study found that every age of five years, the risk of women having a child with autism increased by 18 percent. That is, women who gave birth at age 40 or over 50 percent greater risk of having a child with autism than women who gave birth at the age between 25 and 29, and a 77 percent greater risk of having a child with autism than women who give birth before age 25.
Unlike previous studies that showed an increased risk of older fathers have the child with autism, this study found no association between autism and paternal age, except for one exception, the older man has a child with a much younger wife.
risk of autism..Men over the age of 40 who have children with women under the age of 30 60 percent greater risk of having a child with autism than men aged 25 to 29 who have a child with a young woman.
However, maternal age was not the only factor that triggers a child with autism. Geraldine Dawson of Autism Speaks praised the researchers for using so much data to reveal the effect of parental age on the risk of autism. However, he also warned that mothers need not worry.
"We need to see these findings as a whole," said Dawson, quoted by healthday.com site. "This study is important, but the increase in cases of autism is not only caused by one factor alone. We will find other factors, and maternal age are more old is one among many factors. "
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