Englert Marina, Barsties V Latoszek Ben, Maryn Youri, Behlau Mara
Unifesp - "Universidade Federal de São Paulo" and CEV - "Centro de Estudos da Voz", São Paulo, Brazil.
Speech-Language Pathology, SRH University of Applied Health Sciences, Düsseldorf, Germany.
Logoped Phoniatr Vocol. 2022 Apr;47(1):56-62. doi: 10.1080/14015439.2020.1864467. Epub 2021 Jan 6.
To assess the concurrent validity and the diagnostic accuracy of the Acoustic Breathiness Index (ABI) in Brazilian Portuguese.
The counting numbers 1-20 and the vowel /a/ of 150 subjects were recorded (37 vocally healthy and 113 with dysphonia). The analyzed samples were the counting number 1-11 and 3 s of the sustained vowel. Nine voice specialists performed the perceptual judgment of the degree of breathiness. The Spearman Correlation and the receiver operating characteristic (ROC) curve were used to assess ABI's concurrent validity and diagnosis accuracy.
Results from five listeners were chosen for the study analyses due to moderate and substantial intra-rater reliability (Cohen's Kappa values = 0.520-0.772) and moderate inter-rater reliability (Fleiss Kappa = 0.353). The ABI presented a high concurrent validity ( = 0.746); 55.6% of the breathiness vocal deviation can be explained by the acoustic analysis ( = 0.556). The ROC curve presented good diagnostic accuracy (85.2%). At a threshold of 2.94, the sensitivity was 75.3% and the specificity was 93.4%.
The ABI is a valid tool for screening and patient's follow-up regarding breathy vocal qualities in the Brazilian Portuguese language.
评估巴西葡萄牙语中声学呼吸音指数（ABI）的同时效度和诊断准确性。
记录了150名受试者（37名嗓音健康者和113名发声障碍者）从1数到20以及元音/a/的发音。分析的样本是从1数到11的计数以及持续3秒的元音。九位嗓音专家对呼吸音程度进行了感知判断。使用斯皮尔曼相关性和受试者工作特征（ROC）曲线来评估ABI的同时效度和诊断准确性。
由于评分者内信度适中且较高（科恩kappa值=0.520 - 0.772）以及评分者间信度适中（弗莱iss kappa = 0.353），选择了五位听众的结果进行研究分析。ABI呈现出较高的同时效度（= 0.746）；55.6%的呼吸音嗓音偏差可以通过声学分析来解释（= 0.556）。ROC曲线呈现出良好的诊断准确性（85.2%）。在阈值为2.94时，敏感性为75.3%，特异性为93.4%。
ABI是一种用于巴西葡萄牙语中呼吸音嗓音质量筛查和患者随访的有效工具。
