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Erschienen in: Sleep and Breathing 1/2021

11.06.2020 | Sleep Breathing Physiology and Disorders • Original Article

Smoking and sleep apnea duration mediated the sex difference in daytime sleepiness in OSA patients

verfasst von: Xingjian Wang, Wenyang Li, Jiawei Zhou, Zhijing Wei, Xiaomeng Li, Jiahuan Xu, Fang Zhang, Wei Wang

Erschienen in: Sleep and Breathing | Ausgabe 1/2021

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Abstract

Purpose

Daytime sleepiness is a common symptom of obstructive sleep apnea (OSA) and is more common in men, but the underlying mechanism remains unclear. The aim of this study was to assess whether or not sex differences in daytime sleepiness persisted after controlling for age and OSA severity and to explore the factors contributing to daytime sleepiness in patients with OSA.

Methods

A total of 104 pairs of patients with OSA, matched by age and apnea-hypopnea index (AHI), were enrolled in this retrospective study. Demographic data were collected; daytime sleepiness was measured by the Epworth Sleepiness Scale (ESS); and polysomnography (PSG) was performed on each participant. These measurements were compared between sexes, and the factors affecting daytime sleepiness were explored with correlation and multivariate linear regression analyses.

Results

Men had significantly higher ESS scores (p = 0.021) than women. Regarding demographics, BMI, neck/height ratio, and proportion of habitual smoking and alcohol intake were significantly higher in men. Regarding PSG findings, men had more rapid eye movement sleep, a longer mean apnea-hypopnea duration, and a longer mean apnea duration (MAD). Regression analysis showed that two sex-associated variables, habitual smoking (β = 0.189, p = 0.006) and MAD (β = 0.154, p = 0.024), had the strongest association with ESS scores. Further analysis revealed that MAD was significantly influenced by apnea index (β = 0.306, p < 0.001) and sex (β = − 0.193, p = 0.003).

Conclusion

The sex difference in daytime sleepiness persists in patients with OSA, even after matching AHI and age. The difference is mediated by sex-specific smoking habits and sex differences in apnea duration.
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Metadaten
Titel
Smoking and sleep apnea duration mediated the sex difference in daytime sleepiness in OSA patients
verfasst von
Xingjian Wang
Wenyang Li
Jiawei Zhou
Zhijing Wei
Xiaomeng Li
Jiahuan Xu
Fang Zhang
Wei Wang
Publikationsdatum
11.06.2020
Verlag
Springer International Publishing
Erschienen in
Sleep and Breathing / Ausgabe 1/2021
Print ISSN: 1520-9512
Elektronische ISSN: 1522-1709
DOI
https://doi.org/10.1007/s11325-020-02109-x

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