Beitchman J H, Nair R, Clegg M, Patel P G, Ferguson B, Pressman E, Smith A
J Speech Hear Disord. 1986 May;51(2):98-110. doi: 10.1044/jshd.5102.98.
A representative sample of 5-year-old kindergarten children was assessed for speech and/or language disorder. Of the 1,655 children tested, 180 were identified as having speech or language impairment. It is estimated that within the total reference population, between 16.2% and 21.8% would show some impairment; for the boys, the rate would be 15.5% to 20.7% and for the girls, between 19.1% and 25.1%. Most of these children would show some language impairment as opposed to speech problems only. Approximately 36% of the identified boys and 30% of the girls would have speech problems only, the remainder having speech and language problems or language problems only. Followup studies of these children are needed to ascertain their outcome and language status in middle childhood.
对一个具有代表性的5岁幼儿园儿童样本进行了言语和/或语言障碍评估。在接受测试的1655名儿童中，有180名被确定存在言语或语言障碍。据估计，在整个参考人群中，16.2%至21.8%的人会表现出某种障碍；男孩的比例为15.5%至20.7%，女孩为19.1%至25.1%。这些儿童中的大多数会表现出某种语言障碍，而不仅仅是言语问题。大约36%的已确定男孩和30%的女孩只会有言语问题，其余的则既有言语和语言问题，或只有语言问题。需要对这些儿童进行后续研究，以确定他们在童年中期的结果和语言状况。
