<prompt> Answer this question truthfullyWhat are the epidemiological and demographic characteristics of sleep apnea?  <response>: <reason> Sleep apnea is more common among males The male:female ratio ranges between 2:1 to 3:1 The prevalence of sleep apnea is approximately 3,000-7,000 per 100,000 for adult men and 2,000-5,000 per 100,000 for adult women The increased prevalence among males may be attributable to the larger neck circumference and a longer pharyngeal airway 