孩子有自閉症的問題,40歲以上產婦,與25-29年齡段產婦相比,風險增加51%;與25歲以下產婦相比,風險增加77%。據此換算,如果40歲以上產婦孩子有自閉症的風險為100,那麽:
產婦年齡段 相對風險
<25 56.5
25-29 66.2
>40 100
另外,有文獻指出,高齡產婦生下的女孩,偏男性化。
信息來源:
Study Confirms Link between Older Maternal Age and Autism,Maternal age and autism are both on the rise--but only a small fraction of the increasing incidence can be explained by the trend toward later childbearing
https://www.scientificamerican.com/article/autism-maternal-age/
The researchers found that mothers over 40 had a 51 percent higher risk of having a child with autism than mothers 25 to 29, and a 77 percent higher risk than mothers under 25. Autism—a developmental disorder characterized by impaired social interaction and communication—appears to be on the rise.