In our study, we assessed sexual function in patients with obstructive sleep apnea syndrome (OSA). Our study was cross-sectional, descriptive and case-control analytic, involving OSA patients recruited from a sleep unit. We used the Epworth Sleepiness Scale, the International Index of Erectile Function Scale, the Female Sexual Function Index Scale, the Hospital Anxiety and Depression Scale and the Sexual Satisfaction Index to assess daytime sleepiness,...