Attention Deficit Hyperactivity Disorder (ADHD) affects 1 in 50 women of reproductive age. The perinatal period is a time of heightened vulnerability to sleeplessness, stress and mental illness. Pre-pregnancy ADHD and adverse perinatal psychiatric outcomes is understudied. This population-based cohort study used health administrative data in Ontario, Canada, 2013-2023. Compared were 22,995 mothers with vs. 1,028,038 mothers without pre-pregnancy ADHD. The main outcome was a non-ADHD-related…
