Longitudinal Study of Pure-Tone Thresholds in Older Persons

Abstract

On average, hearing threshold increased approximately 1 dB per year for subjects age 60 and over. Age, gender, and initial threshold levels can affect the rate of change in thresholds. Older female subjects (> or =70 years) had faster rate of change at 0.25 to 3, 10, and 11 kHz than younger female subjects (60 to 69 years). Older male subjects had faster rate of change at 6 kHz than younger male subjects. Females had a slower rate of change at 1 kHz and a faster rate of change at 6 to 12 kHz than males. Subjects with higher initial thresholds at low and mid frequencies tended to have faster rate of threshold change at 0.25 to 2 kHz in the following years. Subjects with higher initial thresholds at mid and higher frequencies tended to have slower rate of change at 6 to 8 kHz in the following years. Noise history did not have a significant effect on the rate of threshold changes.

Acceleration of Age-Related Hearing Loss by Early Noise Exposure: Evidence of a Misspent Youth

“…Methods commonly used to aid such allocations treat these components as though they add simply (with some compression for large shifts) in their contribution to the aggregate hearing loss recorded in a given ear (International Organization for Standardization, 1990Standardization, , 1999) (see also American College of Occupational Medicine, 1989). This notion has found support in a recent longitudinal study (Lee et al, 2005) reporting that threshold shifts over 3-11.5 year timespans were not significantly different for individuals with and without reported noise-exposure histories. However, two recent studies have yielded data that contradict this view (Gates et al, 2000;Rosenhall, 2003).…”

“…This issue of AHL/NIHL interaction has obvious public health significance (Gates et al, 2000;Rosenhall, 2003;Lee et al, 2005) given the high prevalence of noise exposure in and the aging of our society. Concern about long-term effects of noise exposure in young ears is heightened by reports of increasing NIHL prevalence earlier in life (Wallhagen et al, 1997;National Institutes of Health, 2000;Folmer et al, 2002).…”

Pengaruh Hemodialisis Terhadap Kejadian Kurang Pendengaran Sensorineural Pada Penderita Gagal Ginjal Kronik

“…Lee dkk. 5 menemukan hubungan usia dengan penurunan ambang dengar rata-rata pada usia lanjut. Nilai ambang dengar meningkat 1 dB setiap tahunnya pada usia 60 tahun ke atas dan terdapat perbedaan penurunan ambang dengar pada frekuensi 4 dan 8 kHz secara signifikan antara laki-laki dan perempuan.…”

“…16 Lee dkk. 5 dalam penelitian sebelumnya menemukan hubungan antara usia dan penurunan ambang dengar pada usia lanjut. Nilai ambang dengar rata-rata meningkat 1 dB setiap tahunnya pada usia 60 tahun ke atas.…”

Ageing and hearing loss

“…Addressing the ARHL-NIHL interaction in humans is difficult and the results of studies on hearing losses in noise-exposed and/or ageing ears are contradictory and highly variable [22][23][24][25]. This variability may arise from underlying differences in actual noise exposure and because, in part, noise and ageing are both under the influence of other intrinsic and environmental variables that can, by themselves, lead to HL or alter NIHL and/or ARHL vulnerability.…”