Fundação de Amparo à Pesquisa do Estado de São Paulo.
Braz J Otorhinolaryngol. 2011 Nov-Dec;77(6):754-60. doi: 10.1590/S1808-86942011000600012.
Different studies have been carried out in order to correlate audiometric thresholds and distortion product otoacoustic emissions measurements (DPOAE). However, high variability and external interferences make hearing thresholds estimates by means of the DPOAE very little sensitive. The aim of this study was to check the correspondence between the pure tone thresholds and the cochlear response thresholds by DPOAE Input/output functions, considering the influence of the following variables: gender, past of acute otitis media, and ear side.
Prospective study comprehending 69 normal hearing individuals. Multiple mix regression models were applied to evaluate the correspondence between the two measurements studied.
Statistically significant positive correlation was observed among all the frequencies compared (2000, 3000, 4000 e 6000 Hz).
The 1 dB HL resolution pure tone thresholds and the above-mentioned variables had a direct impact on the high correlation between the measures studied, and it also reduced response variability. Nevertheless, response variability was still high, limiting the use of DPOAE I/O functions for hearing threshold estimates. We suggest that these variables should be considered for future studies with pure tone thresholds estimations by DPOAE I/O functions.
目的：为了检查纯音听阈和通过耳声发射输入/输出（DPOAE）测量的耳蜗反应阈之间的相关性，同时考虑以下变量的影响：性别、急性中耳炎病史和耳侧。
方法：本前瞻性研究纳入了 69 名正常听力者。采用多元混合回归模型评估两种测量方法的相关性。
结果：所有比较频率（2000、3000、4000 和 6000 Hz）之间均存在显著正相关。
结论：1dB HL 分辨率的纯音听阈和上述变量对研究中两种测量方法的高度相关性有直接影响，同时降低了反应的变异性。然而，反应的变异性仍然很高，限制了 DPOAE I/O 函数在听力阈值估计中的应用。我们建议在未来使用 DPOAE I/O 函数进行纯音听阈估计的研究中应考虑这些变量。
