Hardin M A, Van Demark D R, Morris H L, Payne M M
Department of Communication Sciences, Case Western Reserve University, Cleveland, Ohio 44106.
Cleft Palate Craniofac J. 1992 Jul;29(4):346-51. doi: 10.1597/1545-1569_1992_029_0346_cbnsal_2.3.co_2.
The relationship between nasalance scores and perceptual judgments of hypernasality and hyponasality was examined for 74 subjects (51 with cleft palate and 23 noncleft controls). Twenty-nine of the 51 subjects with cleft palate had received pharyngeal flap surgery. Predictive analyses were performed to assess the sensitivity, specificity, and efficiency of the Nasometer as a screening instrument. The overall relationship between perceptual judgments of hypernasality and nasalance scores was good for the nonflap subjects when a nasalance cutoff score of 26 was used. A sensitivity coefficient of 0.87 and a specificity coefficient of 0.93 were obtained. Ninety-one percent of the nasometry-based classifications accurately reflected listener judgments of hypernasality. The correspondence between nasalance scores and clinical judgments of hyponasality was also good for the nonflap subjects when a nasalance cutoff score of 50 was used. Ninety-one percent of these classifications were consistent with the listener judgments. Efficiency of nasometry was poorer for the flap subjects.
对74名受试者（51名腭裂患者和23名非腭裂对照者）的鼻音计评分与高鼻音和低鼻音的感知判断之间的关系进行了研究。51名腭裂患者中有29名接受了咽瓣手术。进行预测分析以评估鼻音计作为筛查工具的敏感性、特异性和有效性。当使用26的鼻音计截止分数时，非咽瓣手术受试者的高鼻音感知判断与鼻音计评分之间的总体关系良好。获得了0.87的敏感性系数和0.93的特异性系数。基于鼻音计的分类中有91%准确反映了听众对高鼻音的判断。当使用50的鼻音计截止分数时，非咽瓣手术受试者的鼻音计评分与低鼻音临床判断之间的对应关系也良好。这些分类中有91%与听众判断一致。咽瓣手术受试者的鼻音计效率较差。
