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Hearing loss in the elderly: a 17-year longitudinal study.
1Department of Otolaryngology, Royal Infirmary, Edinburgh.
Clinical Otolaryngology and Allied Sciences
|February 1, 1988
Summary
Hearing loss in older adults progresses steadily, particularly in higher frequencies. This longitudinal study confirms continued age-related hearing decline into the ninth decade of life.
Area of Science:
- Gerontology
- Audiology
- Longitudinal Studies
Background:
- Age-related hearing loss (presbycusis) is a common condition affecting the elderly.
- Previous studies had not definitively established the progression of hearing loss into the ninth decade.
Purpose of the Study:
- To investigate the progression of hearing loss in elderly individuals over an extended period.
- To quantify the rate of hearing deterioration at different frequencies in older adults.
Main Methods:
- A 5-year longitudinal study involving 261 elderly participants (1968-1973).
- Follow-up retesting using pure tone audiometry on 37 survivors aged 80-85 years.
- Analysis of hearing level changes over 17 years (initial 5 years + subsequent 12 years).
Main Results:
- The rate of hearing loss remained consistent over the 17-year study period.
- Higher frequencies showed significantly greater annual deterioration (1.89 dB/year at 6 KHz) compared to lower frequencies (0.35 dB/year at 1 KHz).
Conclusions:
- Hearing loss progresses steadily into the ninth decade of life.
- The findings confirm ongoing age-related auditory decline in advanced age.
- High-frequency hearing loss deteriorates more rapidly than low-frequency loss in the elderly.