By Erin O'Donnell

Children who have a big brother or big sister with an autism spectrum disorder face an increased risk of developing such a disorder themselves, according to a new study in the journal JAMA Pediatrics. The study, of more than 1.5 million children in Denmark, found that sibs of kids diagnosed with autism had an almost seven-fold increased risk of developing autism as well.

This research comes on the heels of a recent study that found that women who undergo labor induction may be more likely to give birth to children with autism spectrum disorders.

Image: Toddler and baby, via Shutterstock

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