A mother's weight and diabetic condition may increase the risk of her unborn child developing a neurodevelopmental disorder, such as autism.
That's according to a new study published in this week's journal Pediatrics.
Researchers found obese mothers were 67 percent more likely to have an autistic child, compared to normal-weight mothers without diabetes or hypertension.
And a pregnant woman who is obese doubles her child's risk of having another developmental disorder, compared to a child born to a mother at healthy weight.
Those disorders include poor communication skills and lack of attention.
The UC Davis study included more than a thousand mother and child pairs from 2003 to 2010.