In another massive data set of more than 1.5 million children born between 1997 and 2022, the use of Tylenol during pregnancy was NOT associated with autism, even after accounting for individual risk factors. Autism was diagnosed in 1.8% of children exposed to Tylenol and 3% of the unexposed group.
jamanetwork.com
This cohort study evaluates the potential association between prenatal acetaminophen exposure and risk of autism in Danish national registers.