A new study found a link to sleep apnea and daytime sleepiness with estradiol, androgens, and sex-hormone binding-globulin levels, according to Endocrinology Advisor.

Although studies have investigated the role of sex hormones during the menstrual cycle and obstructive sleep apnea, there have been no studies in the general population.

Hanna Kische, of the Institute of Clinical Chemistry and Laboratory Medicine at the University Medicine Greifswald in Germany, and colleagues used data from the cross-sectional Study of Health in Pomerania-TREND to assess the association between sleep and sex hormones in 213 women and 204 men. Sleep characteristics were measured with the Pittsburgh Sleep Quality Index, the Epworth Sleepiness Scale (ESS), and the Insomnia Severity Index. Sex hormone levels and polysomnography were also obtained. Data were analyzed with multivariable regression models, which included adjustment for hypertension, alcohol intake, physical inactivity, tobacco use, age, and waist circumference.

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