Aim The aim of the study was to examine longitudinal growth in intelligibility in connected speech from 2 to 8 years of age in children with cerebral palsy. Method Sixty-five children with cerebral palsy participated in the longitudinal study. Children were classified into speech-language profile groups using age-4 data: no speech motor impairment (SMI), SMI with typical language comprehension, and SMI with impaired language comprehension. We fit a Bayesian nonlinear mixed-effects model of intelligibility growth at the child and group levels. We compared groups by age of steepest growth, maximum growth rate, and predicted intelligibility at 8 years of age. Results The no SMI group showed earlier and steeper intelligibility growth and higher average outcomes compared to the SMI groups. The SMI groups had more variable growth trajectories, but the SMI with typical language comprehension group had higher age-8 outcomes and steeper rates of maximum growth than the SMI with impaired language comprehension group. Language comprehension impairment at age of 4 years predicted lower intelligibility outcomes at age of 8 years, compared to typical language at age of 4 years. Interpretation Children with SMI at age of 4 years show highly variable intelligibility growth trajectories, and comorbid language comprehension impairment predicts lower intelligibility outcomes. Supplemental Material https://doi.org/10.23641/asha.12777659

中文翻译：

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脑瘫儿童 2 至 8 岁互联语音清晰度的纵向增长：一种新颖的贝叶斯方法

目的该研究的目的是检查 2 至 8 岁脑瘫儿童连词清晰度的纵向增长情况。 方法65 名脑瘫儿童参与了这项纵向研究。使用 4 岁数据将儿童分为言语语言概况组：无言语运动障碍 (SMI)、具有典型语言理解能力的 SMI 和具有语言理解障碍的 SMI。我们拟合了儿童和群体层面的可懂度增长的贝叶斯非线性混合效应模型。我们根据生长最快的年龄、最大生长速率和预测 8 岁时的清晰度对各组进行比较。 结果与 SMI 组相比，无 SMI 组表现出更早、更陡峭的清晰度增长和更高的平均结果。SMI 组的生长轨迹变化更大，但具有典型语言理解能力的 SMI 组比语言理解能力受损的 SMI 组具有更高的 8 岁结局和更陡峭的最大生长率。与 4 岁时的典型语言相比，4 岁时的语言理解障碍预示着 8 岁时的可理解性结果较低。 解释4 岁时患有 SMI 的儿童表现出高度可变的可懂度增长轨迹，并且共病语言理解障碍预示着较低的可懂度结果。 补充材料 https://doi.org/10.23641/asha.12777659