Quantitative criteria for age-related hearing loss using audiometric configuration analysis

Area of Science:

• Audiology
• Gerontology
• Public Health

Background:

• Age-related hearing loss (ARHL) is a significant health concern affecting a large portion of the elderly population.
• Existing criteria for defining ARHL lack adaptability and may not accurately reflect population-based prevalence.

Purpose of the Study:

• To establish the most adaptable quantitative criteria for age-related hearing loss (ARHL).
• To utilize population-based data for prevalence matching to refine ARHL definitions.

Main Methods:

• Compared various gap ranges (15-30 dB) for hearing loss cutoff values between low (500 Hz, 1 kHz) and high (4 kHz, 6 kHz) frequencies.
• Defined interaural difference (10 or 15 dB) and hearing loss (>25 dB).
• Utilized data from the Korea National Health and Nutrition Examination Survey, assuming ARHL prevalence of 25-35% increasing with age.

Main Results:

• Identified specific criteria as most suitable for audiometric definition of ARHL.
• Recommended criteria include age ≥ 65 years, average hearing loss >25 dB, frequency gap ≥ 20 dB, and interaural difference ≤ 10 dB.

Conclusions:

• Proposed new, quantitative criteria for age-related hearing loss (ARHL).
• These suggested criteria are easily accessible for researchers to test hypotheses and advance ARHL research.