Final answer:
Maternal smoking during pregnancy is associated with an increased risk of ADHD in children.
Step-by-step explanation:
Based on the study conducted by researchers from Cincinnati Children's Hospital Medical Center, it is reasonable to conclude that a mother's smoking during pregnancy causes an increase in the risk of ADHD in her children. The study found that children whose mothers smoked during pregnancy were more than twice as likely to develop ADHD compared to children whose mothers did not smoke. This suggests a strong association between maternal smoking during pregnancy and the development of ADHD.
Learn more about Maternal smoking during pregnancy and its impact on ADHD risk