1993 Volume 3 Issue 2 Pages 224-229
The hearing impairments elicited by screening hearing test were examined for the presence of evokedotoacoustic emissions (e-OAE) to investigate the relationship of e-OAE to hearing test. The threshold ofscreening hearing test coincided with pure tone audiometry threshold in 236 ears (88.7%) at 1kHz and 212ears (79.7%) at 4kHz. The incidence of false positive was 41.3% at 1kHz and 20.2% at 4kHz, falsenegative was 5% at 1kHz and 21.4% at 4kHz.
In comparison with e-OAE to screening hearing test, the correlation between e-OAE and pure toneaudiometric threshold (1kHz tone-burst OAE to 1kHz pure tone, 2kHz tone-burst OAE to 4kHz pure tone) was predominant. The rate of correlation was 91.7% at lkHz-OAE and 88.2% at 2kHz-OAE, falsepositive was29.4% at 1kHz-OAE and 5.5% at 2kHz-OAE. However, there were some problem for e-OAEin screening test. The rate of false negative at 2kHz-OAE was not satisfied and in about 30% of cases, thee-OAE was not measured for the noise.
