A Cross-Sectional Study of the Time of Onset of Hearing Loss in Bus Drivers Following Exposure to Occupational Noise

This study confirms that prolonged noise exposure leads to "slight" hearing loss, which can appear as early as 25-48 months after exposure to noise. Among individuals under 40 years of age, significant hearing loss appeared to occur only after 10 or more years of exposure. These findings suggest that the impact of noise on hearing acuity may have been overestimated in previous studies.