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Atherogenic risk factors and hearing thresholds.

Thomas Winther Frederiksen1, Cecilia Høst Ramlau-Hansen, Zara Ann Stokholm

  • 1Department of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark.

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Atherogenic risk factors like smoking and high BMI are linked to poorer low-frequency hearing. This study suggests a connection between cardiovascular health and hearing loss, particularly in the lower frequencies.

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Area of Science:

  • Occupational Health
  • Audiology
  • Cardiovascular Health

Background:

  • Cardiovascular diseases share risk factors with other chronic conditions.
  • Atherogenic risk factors are well-established contributors to cardiovascular disease.
  • The impact of these factors on auditory health, specifically hearing thresholds, requires further investigation.

Purpose of the Study:

  • To investigate the association between atherogenic risk factors and hearing thresholds in a working population.
  • To determine if factors such as blood lipids, glycosylated hemoglobin, smoking, BMI, and blood pressure influence hearing ability.

Main Methods:

  • Cross-sectional study analyzing data from a 2009-2010 Danish survey.
  • Included 576 white- and blue-collar workers from diverse occupational settings.
  • Multiple linear regression models were used to analyze associations between risk factors and hearing thresholds.

Main Results:

  • Smoking, high body mass index (BMI), elevated triglycerides, and low high-density lipoprotein levels were associated with increased low-frequency hearing thresholds.
  • An increasing burden of atherogenic risk factors showed a borderline association with higher low-frequency hearing thresholds.
  • Associations were more pronounced for the worst-hearing ear, but no significant links were found with high-frequency hearing thresholds.

Conclusions:

  • Specific atherogenic risk factors are associated with impaired low-frequency hearing.
  • These findings highlight a potential link between cardiovascular health and auditory function.
  • Further research may explore preventative strategies targeting these risk factors to preserve hearing health.