McRae K M, Vickar E
Child Development Clinic, Children's Hospital, Winnipeg, Manitoba.
Dev Med Child Neurol. 1991 Oct;33(10):868-74. doi: 10.1111/j.1469-8749.1991.tb14795.x.
The authors followed 38 children with delayed speech development approximately two to four years after initial diagnosis, assessing and comparing their subsequent speech and language, and over-all development. Nearly all of the children had appropriate language levels for their general development. Just over half had less articulation competence than expected for their age, but this was not related to language achievement or age. It appears that the prognosis for future language development is favourable for these children. The results suggest that articulation might be a developmentally related process with a good prognosis, but further follow-up is necessary to determine ultimate competence of children in whom this is delayed.
作者在初次诊断后约两到四年对38名语言发育迟缓的儿童进行了跟踪，评估并比较了他们随后的言语和语言能力以及总体发育情况。几乎所有儿童的语言水平与其总体发育情况相适应。略多于半数的儿童其发音能力低于同龄人预期水平，但这与语言成绩或年龄无关。看来这些儿童未来语言发展的预后良好。结果表明，发音可能是一个预后良好的与发育相关的过程，但需要进一步随访以确定发音延迟儿童的最终能力。
