Sullivan A, Kelso J, Stewart M
University of Iowa College of Medicine, Iowa City.
Child Psychiatry Hum Dev. 1990 Summer;20(4):269-78. doi: 10.1007/BF00706019.
The mothers of 120 consecutive children in our outpatient clinic were asked a series of questions about their views on the ages at which their children became deviant. The symptoms of autism were the earliest noted at 15 months. Those with symptoms of attention-deficit hyperactivity disorder (ADHD), or conduct disorder plus ADHD, did not separate by age of onset. The mean for both groups was the fourth year of life. Children with conduct disorder alone had a putative age of onset of six years.
我们门诊连续接诊的120名儿童的母亲被问及一系列关于她们对孩子出现行为异常年龄看法的问题。自闭症症状最早在15个月时被注意到。患有注意力缺陷多动障碍（ADHD）或品行障碍加ADHD的儿童，其发病年龄没有差异。两组的平均发病年龄均为4岁。单纯患有品行障碍的儿童假定发病年龄为6岁。
