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Diabetes-related changes in hearing.

Donald F Austin1, Dawn Konrad-Martin, Susan Griest

  • 1VA Rehabilitation Research and Development Service, National Center for Rehabilitative Auditory Research, Portland VA Medical Center, Oregon 97239, USA.

The Laryngoscope
|July 14, 2009
PubMed
Summary
This summary is machine-generated.

Diabetes mellitus (DM) is linked to hearing loss, especially in adults under 50. This study found that the severity and type of diabetes impact hearing, with non-insulin-dependent DM showing broader hearing differences.

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Area of Science:

  • Audiology
  • Endocrinology
  • Public Health

Background:

  • Diabetes mellitus (DM) is a growing public health concern with numerous systemic complications.
  • Hearing impairment is a recognized but often overlooked complication of DM.
  • Understanding the relationship between DM severity and hearing loss is crucial for early intervention.

Purpose of the Study:

  • To investigate the impact of diabetes mellitus severity on auditory function.
  • To compare hearing loss in individuals with and without diabetes, considering different diabetes types and age groups.

Main Methods:

  • A cross-sectional study involving 165 individuals with DM and 137 without DM, all with moderate hearing loss.
  • Classification of diabetes severity into insulin-dependent (IDDM) and non-insulin-dependent (NIDDM) categories.
  • Pure-tone audiometry across a wide frequency range, with adjustments for age and frequency.

Main Results:

  • Younger adults (<50 years) with DM exhibited greater hearing loss compared to non-diabetic individuals.
  • Non-insulin-dependent diabetes (NIDDM) was associated with significant hearing differences across all tested frequencies.
  • Insulin-dependent diabetes (IDDM) showed hearing differences at lower (<1,000 Hz) and higher (10,000+ Hz) frequencies, particularly in those over 50.

Conclusions:

  • Diabetes mellitus is associated with an increased risk of hearing loss.
  • The impact of diabetes on hearing is more pronounced in younger adults (<50 years).
  • Different types of diabetes may have distinct effects on auditory function across various frequencies.