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자료유형
학술저널
저자정보
저널정보
한국청각언어재활학회 Audiology and Speech Research Audiology and Speech Research 제13권 제1호
발행연도
2017.1
수록면
78 - 87 (10page)

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Purpose: 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. Methods: 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). Results: 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. Conclusion: 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.

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