7.21 A study enrolled 517 children aged 2-5 years wth a diagnosis of autism spectrum disorder and 315 control children of the same age groups but without such diagnosis. Info was collected about metabolic conditions of the mothers at the time of their pregnancy. such as type 2 diabetes, hypertension, or obesity. Metabolic conditions during pregnancy tended to be more frequent among the mothers of children with autism spectrum disorder than among mothers of control children. This is...
An observational study with a case-control design. T/F