| 소음성 난청자의 순음청력역치와 어음청취역치 및 청성뇌간반응 역치와의 비교 |
| 김규상 |
| 한국산업안전보건공단 산업안전보건연구원 |
| A Comparison among Pure-Tone Thresholds, Speech Reception Threshold, and
Auditory Brainstem Response Threshold in Noise-Induced Hearing Loss |
| Kyoo Sang Kim |
| Industrial Safety & Health Research Institute, KOSHA, Incheon, Korea |
| Correspondence |
Kyoo Sang Kim ,Tel: (032) 510-0823, Fax: (032) 518-0862, Email: kobawoo@kosha.net
|
|
|
Received: November 6, 2009; Accepted: December 5, 2009. Published online: December 31, 2009. |
|
|
|
| ABSTRACT |
|
Pure-tone thresholds (PTTs), speech reception threshold (SRT), and auditory brainstem response (ABR) threshold were compared
in 100 ears with noise-induced hearing loss to examine the accuracy of prediction for hearing thresholds. The 100 subject ears, which
were with sensorineural hearing loss and no history of ear disease, were selected from 62 male workers who were exposed to noise in
automobile manufacturing factory and suspected of noise-induced hearing loss. PTTs were determined using modified ascending
method in 5-dB steps by pure tone audiometry (PTA)；threshold for speech were measured as SRT；and ABR threshols was
defined as the lowest stimulus intensity at which V wave could be clearly observed. SRT was lower than the average PTTs, and ABR
threshold was higher than PTTs and SRT. Simple regression analysis was carried out to examine the relationship between SRT and
the average PTTs and thresholds by frequency by PTA. PTTs in low frequency region (0.5-1 kHz) showed higher association, with
explanatory power of more than 70%, and particularly the average PTTs by three division method showed the highest association
with SRT. Simple regression analysis for the relationship between ABR threshold and the average PTTs and thresholds by frequency
by PTA revealed that PTTs in 2-6 kHz region was more highly associated with ABR threshold. |
| Key Words:
Noise-induced hearing loss (NIHL)·Pure-tone threshold·Speech reception threshold·Auditory brainstem
response. |
| 중심단어:
소음성 난청· 순음청력역치· 어음청취역치· 청성뇌간반응. |
|
|
|
PDF Links
Full text via DOI
Download Citation 
Print 
