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Hearing thresholds at conventional and extended high frequencies in young personal listening devices‘ users: A pilot study

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Gottfriedová N., Škerková M., Zbořilová M., Kovalová M., Tomaskova H., Mrázková E.
Polish Journal of Otolaryngology
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2024
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vol. 79
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issue 1
17-25
EN
Introduction: The exposure to unsafe sound levels is considered a risk factor for developing noise-induced hearing loss (NIHL). Personal listening devices (PLDs) represent a common source of recreational noise among young adults. First changes of NIHL could be detected at extended high frequencies (EHFs). Aim: This pilot study aimed to analyze hearing thresholds at conventional frequencies (CFs) and EHFs in young adults due to the PLD use. Methods: Hearing thresholds of 114 otologically normal adults aged 18 to 30 years unexposed to occupational noise were assessed using conventional and extended high-frequency audiometry. Data on PLD use, leisure time noise exposure, health and lifestyle, were acquired using a questionnaire. Results: Differences in hearing thresholds were found at CFs but not at EHFs according to the listening frequency (daily vs less frequent listening); duration of one PLD use of more than 30 minutes; and total listening time ≥7 hours/week. Only the highest frequency was affected by loud volume listening. Conclusions: Changes in hearing thresholds were found at CFs, whereby long duration, high volume and daily use were associated with lower hearing thresholds in otologically healthy adults.
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