Revisiting the quartic model for early identification of noise-induced hearing loss.
Murphy WJ; Franks JR
J Acoust Soc Am 2004 Oct; 116(4):2600
In a 1976 article by Cooper and Owen [''Audiologic profile of noise induced hearing loss,'' Arch. Otolaryngol. 102, 148-150 (1976)], they advanced a quartic model to perform a least-squares fit to an audiogram for the purpose of identifying a noise-induced notch indicative of early onset of noise-induced hearing loss. This model has been revisited for the purpose of better quantification of a set of rules that will best identify the presence or absence of a noise notch. A subset of 1660 subjects' right and left audiograms collected for the National Health and Nutrition Examination Survey (NHANES IV) was fit with a quartic model. As well, several hearing scientists and audiologists within NIOSH examined and classified the audiograms as having a notch or not. Preliminary results suggest that the choice of notch criteria dramatically affects the identification accuracy when correlated with clinical judgments. This paper will present how these rules were developed and how the quartic model may be interpreted and applied in a hearing conservation program.
Hearing-level; Hearing-loss; Hearing-acuity; Health-surveys; Age-factors; Age-groups; Information-retrieval-systems; Physical-examination; Racial-factors; Sex-factors; Audiological-testing; Audiometry
William J. Murphy, NIOSH Hearing Loss Prevention Team, 4676 Columbia Pkwy., MS C-27, Cincinnati, OH 45226-1998
Journal of the Acoustical Society of America