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P121 Salivary cortisol and tinnitus
  1. Thomas Winther Frederiksen1,2,
  2. Cecilia Høst Ramlau-Hansen3,
  3. Zara Ann Stokholm1,
  4. Matias Brødsgaard Grynderup4,
  5. Åse Marie Hansen4,5,
  6. Søren Peter Lund5,
  7. Jesper Kristiansen5,
  8. Jesper Medom Vestergaard1,
  9. Jens Peter Bonde6,
  10. Henrik Kolstad1
  1. 1Department of Occupational Medicine, Danish Ramazzini Centre, Aarhus University, Aarhus, Denmark
  2. 2Department of Otolaryngology, Regionshospitalet Holstebro, Holstebro, Denmark
  3. 3Department of Public Health, Section for Epidemiology, Aarhus University, Aarhus, Denmark
  4. 4Department of Public Health, University of Copenhagen, Copenhagen, Denmark
  5. 5National Research Centre for the Working Environment, Copenhagen, Denmark
  6. 6Department of Occupational and Environmental Medicine, Bispebjerg University Hospital, Copenhagen, Denmark

Abstract

Objectives Stress is a suspected cause of tinnitus and studies relying on self-reported stress measures have supported this hypothesis. Self-report studies may, however, have validity problems. The objective of this study was to investigate if salivary cortisol, as an objective indicator of stress activation of the HPA axis, was associated with tinnitus.

Methods In a cross-sectional study, we analysed data from a Danish survey from 2010, including 632 white- and blue-collar workers from 10 manufacturing trades, children day care units and financial services. Associations between cortisol measures (awakening cortisol, awakening+30 cortisol, cortisol awakening response, evening cortisol, cortisol slope and area under the curve) and tinnitus were analysed using logistic regression.

Results Overall, no statistically significant associations were observed between cortisol measures and tinnitus. Weak associations between a steeper cortisol slope across the day (reflecting higher awakening cortisol and lower evening cortisol) and tinnitus were indicated.

Conclusions This observational study did not support the hypothesis that salivary cortisol, as a reflection of HPA axis activity, is associated with tinnitus. Weak indications of an association between a steeper slope of cortisol and tinnitus warrants further study.

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