클릭유발 청성뇌간반응과 순음청력검사의 평균 및 주파수에 따른 상관관계 분석
Correlation of Threshold of Click-Evoked Auditory Brainstem Response with Pure-Tone Threshold Average in Various Formulas
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Background and Objectives The aim of this study is to assess the correlation between the threshold of click-evoked auditory brainstem response (ABR) and the pure-tone averages in various formulas. Subjects and Method Data were obtained from 207 patients (326 ears) with sudden sensorineural hearing loss. All subjects underwent hearing threshold evaluation using pure tone audiogram (PTA), speech audiogram and click-evoked ABR. Linear regression analyses were applied to assess the relation between threshold of click-evoked ABR and threshold of separate frequencies of the PTA and to analyze the correlation between threshold for click-evoked ABR and various pure-tone averages. Results Results revealed a significant relation between the threshold of click-evoked ABR and PTA thresholds at 0.5 kHz, 1 kHz, 2 kHz, 3 kHz, and 4 kHz. The highest coefficients of regression and determination were 1.026 for 4 kHz and R2=0.663 for 3 kHz, respectively. The coefficient of regression was highest (=0.995) for the mean of PTA thresholds for 3 kHz and 4 kHz. The coefficient of determination was highest for the mean of PTA thresholds for 1, 2, 3 and 4 kHz (R2=0.732). Multiple regression analysis showed a significant relation between the ABR threshold and PTA thresholds for 1, 3, and 4 kHz (R2=0.732), with highest correlation coefficient at 3 kHz [ABR=11.79+(0.17×1 kHz)+(0.26×3 kHz)+(0.23×4 kHz), (p＜0.05)]. Conclusion The threshold of click-evoked ABR correlates best with the mean of PTA thresholds for 1, 2, 3 and 4 kHz. The PTA threshold for 3 kHz has highest correlation with the ABR threshold. Korean J Otorhinolaryngol-Head Neck Surg 2012;55:764-70
Abstract
Background and Objectives The aim of this study is to assess the correlation between the threshold of click-evoked auditory brainstem response (ABR) and the pure-tone averages in various formulas. Subjects and Method Data were obtained from 207 patients (326 ears) with sudden sensorineural hearing loss. All subjects underwent hearing threshold evaluation using pure tone audiogram (PTA), speech audiogram and click-evoked ABR. Linear regression analyses were applied to assess the relation between threshold of click-evoked ABR and threshold of separate frequencies of the PTA and to analyze the correlation between threshold for click-evoked ABR and various pure-tone averages. Results Results revealed a significant relation between the threshold of click-evoked ABR and PTA thresholds at 0.5 kHz, 1 kHz, 2 kHz, 3 kHz, and 4 kHz. The highest coefficients of regression and determination were 1.026 for 4 kHz and R2=0.663 for 3 kHz, respectively. The coefficient of regression was highest (=0.995) for the mean of PTA thresholds for 3 kHz and 4 kHz. The coefficient of determination was highest for the mean of PTA thresholds for 1, 2, 3 and 4 kHz (R2=0.732). Multiple regression analysis showed a significant relation between the ABR threshold and PTA thresholds for 1, 3, and 4 kHz (R2=0.732), with highest correlation coefficient at 3 kHz [ABR=11.79+(0.17×1 kHz)+(0.26×3 kHz)+(0.23×4 kHz), (p＜0.05)]. Conclusion The threshold of click-evoked ABR correlates best with the mean of PTA thresholds for 1, 2, 3 and 4 kHz. The PTA threshold for 3 kHz has highest correlation with the ABR threshold. Korean J Otorhinolaryngol-Head Neck Surg 2012;55:764-70
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