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Audiology and Speech Research > Volume 13(1); 2017 > Article
Audiology and Speech Research 2017;13(1): 78-87.
Published online: January 31, 2017.
doi: http://dx.doi.org/10.21848/asr.2017.13.1.78
아동의 중이 검사 주파수(226, 678, 1,000 Hz) 영향 분석: 일반 및 특수학교대상 아동을 중심으로
김춘혁1, 김건구1, 이승완1, 김진숙2
1한림대학교 일반대학원 언어병리청각학과
2한림대학교 자연과학대학 언어청각학부·청각언어연구소
Effects of 3 Frequencies (226, 678, 1,000 Hz) on Tympanograms of the Children: For the Typical and Special School Children
Chunhyeok Kim1, Gungu Kim1, Seungwan Lee1, Jinsook Kim2
11Department of Speech Pathology and Audiology, Graduate School, Hallym University, Chuncheon, Korea
22Division of Speech Pathology and Audiology, Research Institute of Audiology and Speech Pathology, College of Natural Sciences, Hallym University, Chuncheon, Korea
Correspondence  Jinsook Kim ,Tel: +82-33-248-2213, Fax: +82-33-256-3240, Email: jskim@hallym.ac.kr
Received: January 31, 2017; Revised: January 31, 2017   Accepted: January 31, 2017.  Published online: January 31, 2017.
This study was to determine effects of three stimulus frequencies on tympanometry and to compare with Distortion Produtct Otoacoustic Emission (DPOAE) for regular and special school-age children.
A total number of 182 school-age children, 152 recruited from regular elementary school and 30 from special school, participated. All participants were evaluated by tympanogram and DPOAE. Tympanograms were tested by 226, 678, and 1,000 Hz and analyzed with static compliance (SC) and earcanal volume (EV).
Depending on three stimulus frequencies, SCs and EVs were 0.49, 1.45, and 1.26 ml and 0.92, 2.98, 4.52 cm3 in regular school-age group and 0.56, 1.58, 1.29 ml and 0.98, 3.0, 4.48 cm3 in special school-age group. There were statistical significant differences among three frequencies but no difference between regular and special school-age groups for both SCs and EVs (p < 0.05). The pass and fail rate of DPOAE was 87.2% and 12.8% for regular school-age group and 57.6% and 42.4% for special school-age group, showing a statistical significant difference between groups (p < 0.05). Agreement rate between tympanograms and DPOAE results was the highest in 678 Hz.
While there was no difference in middle ear status between groups, DPOAE results referred that the inner ear status could be poor for the special school-age group. Therefore, more interests of hearing status should be aroused to the special school-age children. Additionally, the 678 Hz seems to be more useful for screening school-age children. Further, more data with pure tone examination be supplemented for the certain conclusion.
Key Words: Stimulus frequencies, Tympanometry, Regular school-age group, Special school-age group.
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