age of parents and autism
Autism Risk Rises With Mother's Age. Feb. 8, 2010 -- The older a mother is when she gives birth, the higher her child's risk of autism, new data show. A smaller effect also is seen for the age of the father, but only when the child is born to a father over age 40 and a mother under age 30. The new findings come from a comparison of reported autism cases in California to state singleton birth records from 1990 to 1999.