Duke University researchers recently published a study that suggests that autism may be linked to labor induction and augmentation. The study revealed that mothers who had induced labor have a 13 percent higher risk of autism, and those who augment already existing contractions have a 16 percent increased chance—this figure more than doubled for mothers who had both procedures done. The Duke study used a sample of records from schools and birth databases from over 625,000 children in North Carolina born between 1990 and 1998 to come to their findings.