The prevalence of childhood ADHD is reported to be 3% to 10%, and it is highly comorbid with conduct disorder, oppositional-defiance disorder, anxiety disorder, and bipolar disorder.

• 儿童ADHD的盛行率据报导为3%25至10%25之间，且经常与行为异常、反向挑战异常、焦虑异常与双极性异常共同发生。