Prenatal Exposure to Alcohol and Tobacco Increases ADHD Risk.
Children whose mothers drink or smoke during pregnancy are roughly 50-250% more likely to be diagnosed with attention deficit hyperactivity disorder (ADHD) than children who receive no alcohol or tobacco exposure while in utero. More specifically, if a mother drinks alcohol during pregnancy, her child’s risk for ADHD is 1.55 times greater than if she doesn’t drink. If she smokes, her child will have a 2.65-fold greater risk for ADHD.
Psychiatry Research, January 2015