Detection and Clinical Diagnosis of Noise-Induced Hearing Loss by Otoacoustic Emissions.

The purpose of this study was to explore the application of the click-evoked and distortion products otoacoustic emissions (CEOAEs and DPOAEs, respectively) in the diagnosis and detection of noise-induced hearing loss (NIHL). The study group consisted of 283 noise-exposed subjects and 176 subjects with a history of noise exposure but with a normal audiogram. Findings were also compared with those in 310 young military recruits with no reported history of noise exposure and normal bilateral audiogram.