Hardin M A, Van Demark D R, Morris H L
Department of Communication Sciences, Case Western Reserve University, Cleveland, OH 44106.
J Commun Disord. 1990 Dec;23(6):401-16. doi: 10.1016/0021-9924(90)90027-v.
The purposes of this study were to (1) examine the long-term speech status of patients judged to exhibit marginal velopharyngeal competence at 6 years of age and (2) determine whether speech performance data obtained at age 6 could be used to discriminate patients with marginal velopharyngeal competence who eventually demonstrate velopharyngeal incompetence from those who do not. Longitudinal speech performance data were retrieved for 48 subjects and examined descriptively for the total group. Data obtained at the subjects' last evaluation (adolescence) were then used to reassign these subjects into one of three classification groups for estimating velopharyngeal status (competent, marginal, incompetent) on the basis of the clinical ratings of velopharyngeal competence assigned at the time of their last examination in adolescence. Differences in measures of articulation proficiency and hypernasality among the three groups were examined at age 6 using an analysis of variance. A stepwise discriminate analysis was also performed to determine whether the speech data obtained at age 6 could be used to discriminate the three adolescent classification groups. The ANOVA revealed no significant differences among the classification groups in type of articulation errors. Differences in articulation test scores and severity ratings of articulation defectiveness and nasality in connected speech were evident among the groups. The discriminate analysis revealed that the groups could be separated, in part, on the basis of two variables: the severity ratings of articulation defectiveness and nasality.
（1）检查6岁时被判定为腭咽功能临界的患者的长期言语状况；（2）确定6岁时获得的言语表现数据是否可用于区分最终表现为腭咽功能不全的腭咽功能临界患者和未表现出该情况的患者。检索了48名受试者的纵向言语表现数据，并对整个组进行了描述性检查。然后，根据受试者最后一次评估（青春期）时获得的数据，将这些受试者重新分为三个分类组之一，以便根据他们青春期最后一次检查时分配的腭咽功能临床评级来估计腭咽状况（正常、临界、功能不全）。在6岁时，使用方差分析检查了三组之间在发音熟练度和鼻音过重测量方面的差异。还进行了逐步判别分析，以确定6岁时获得的言语数据是否可用于区分三个青春期分类组。方差分析显示，分类组之间在发音错误类型上没有显著差异。各组之间在发音测试分数以及连贯言语中发音缺陷和鼻音的严重程度评级方面存在明显差异。判别分析表明，这些组可以部分地根据两个变量进行区分：发音缺陷和鼻音的严重程度评级。
