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Purpose <p>Obstructive sleep apnea (OSA) is a common sleep-related breathing disorder that is diagnosed more frequently in men. The aim of this population-based cross-sectional study was to describe sex-specific differences in sleep stage distribution and subjective daytime sleepiness in individuals with OSA. Special attention was given to the distribution of the apnea-hypopnea index (AHI) in rapid eye movement (REM) and non-REM sleep.</p> Methods <p>This study analyzed data from the SHIP-TREND-0 cohort, a population-based study from northeastern Germany. Standardized polysomnography identified 604 participants with an AHI ≥ 5 (395 men, 209 women) who were included in this study. In addition, daytime sleepiness was recorded using the Epworth Sleepiness Scale (ESS). Sex differences were analyzed descriptively and evaluated according to effect sizes.</p> Results <p>Compared to males, females were on average older and had higher BMI values. Women showed descriptively higher AHI values in REM sleep than in non-REM sleep, whereas men exhibited a more balanced distribution of AHI across sleep stages. Women had a longer REM sleep latency (<i>d</i> = 0.36).</p> Conclusions <p>Our results indicate sex-specific differences in the distribution of obstructive events across sleep stages. The AHI during REM sleep should receive greater consideration in the diagnosis and assessment of severity, particularly in women. Further population-based studies are needed to confirm these findings and evaluate their clinical relevance.</p>

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Sex differences in obstructive sleep apnea: a population-based study from northeastern Germany

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年2月28日

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  • Kora Steinmetz,
  • Markus Krüger,
  • Anne Obst,
  • Ralf Ewert,
  • Thomas Penzel,
  • Ingo Fietze,
  • Bernd Kordaß,
  • Till Ittermann,
  • Chia-Jung Busch,
  • Christian Scharf,
  • Sylvia Stracke,
  • Beate Stubbe,
  • Amro Daboul

摘要

Purpose

Obstructive sleep apnea (OSA) is a common sleep-related breathing disorder that is diagnosed more frequently in men. The aim of this population-based cross-sectional study was to describe sex-specific differences in sleep stage distribution and subjective daytime sleepiness in individuals with OSA. Special attention was given to the distribution of the apnea-hypopnea index (AHI) in rapid eye movement (REM) and non-REM sleep.

Methods

This study analyzed data from the SHIP-TREND-0 cohort, a population-based study from northeastern Germany. Standardized polysomnography identified 604 participants with an AHI ≥ 5 (395 men, 209 women) who were included in this study. In addition, daytime sleepiness was recorded using the Epworth Sleepiness Scale (ESS). Sex differences were analyzed descriptively and evaluated according to effect sizes.

Results

Compared to males, females were on average older and had higher BMI values. Women showed descriptively higher AHI values in REM sleep than in non-REM sleep, whereas men exhibited a more balanced distribution of AHI across sleep stages. Women had a longer REM sleep latency (d = 0.36).

Conclusions

Our results indicate sex-specific differences in the distribution of obstructive events across sleep stages. The AHI during REM sleep should receive greater consideration in the diagnosis and assessment of severity, particularly in women. Further population-based studies are needed to confirm these findings and evaluate their clinical relevance.