The effect of cumulative noise exposure on distortion product otoacoustic emissions.
Int J Audiol
; 62(9): 886-892, 2023 09.
Article
in En
| MEDLINE
| ID: mdl-35968641
ABSTRACT
OBJECTIVE:
This study aimed to identify the characteristics of distortion product otoacoustic emissions (DPOAEs) that can be used to differentiate noise-induced hearing loss (NIHL) from age-related hearing loss. A potential index to detect NIHL was defined in terms of its susceptibility to cumulative noise exposure but not to age.DESIGN:
In this cross-sectional cohort study, a job-exposure matrix was used to calculate the cumulative noise exposure. Multivariate linear regression models were used to examine how age and cumulative noise exposure associated with DPOAEs at individual frequencies after adjusting for hypertension, dyslipidaemia, tobacco use and alcohol consumption. STUDY SAMPLE The pure-tone audiometry and DPOAEs data collected from 239 male workers in a steel factory.RESULTS:
DPOAEs and DPOAE signal-to-noise ratios (SNRs) at all frequencies were found to be correlated with age, and those at 2, 3, 4 and 6 kHz were correlated with both age and noise exposure. The difference between DPOAE SNR at 1 and 3 kHz showed significant correlation with noise exposure but not with age.CONCLUSIONS:
The results showed that this DPOAE index, the DPOAE SNR at 1 kHz minus the DPOAE SNR at 3 kHz, could add values to audiometric evaluation of NIHL.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Otoacoustic Emissions, Spontaneous
/
Hearing Loss, Noise-Induced
Type of study:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limits:
Humans
/
Male
Language:
En
Journal:
Int J Audiol
Journal subject:
AUDIOLOGIA
Year:
2023
Type:
Article
Affiliation country:
Taiwan