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Association between obstructive sleep apnea and thyroid function: A 10-year retrospective study.

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Obstructive sleep apnea (OSA) may increase thyroid hormone levels in younger adults but not in the elderly. Thyroid nodules are linked to oxygen saturation in all age groups. Further research is needed.

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Area of Science:

  • Endocrinology
  • Sleep Medicine
  • Pulmonology

Background:

  • Obstructive sleep apnea (OSA) is a common sleep disorder.
  • Thyroid dysfunction can affect overall health.
  • The relationship between OSA and thyroid function requires further investigation.

Purpose of the Study:

  • To investigate the impact of obstructive sleep apnea (OSA) on thyroid function.
  • To explore potential differences in this relationship based on age.

Main Methods:

  • Retrospective analysis of data from 853 patients.
  • Classification of patients into control, mild-moderate OSA, and severe OSA groups based on polysomnography.
  • Analysis of thyroid function markers including FT3, TT3, T4, anti-TPO, and anti-Tg.

Main Results:

  • In non-elderly patients (<60 years), OSA severity correlated with altered FT3 and TT3 levels.
  • Thyroid nodules were associated with Mean SaO2 in both younger and elderly populations.
  • No significant differences in FT3 and TT3 were observed between OSA groups in the elderly (≥60 years).

Conclusions:

  • OSA progression may elevate thyroid hormone levels (particularly FT3) in younger individuals.
  • Mean SaO2 is a significant factor in thyroid nodule occurrence across all ages.
  • Age-stratified research is crucial for understanding OSA's impact on thyroid function.