Until the 1990s, little was known regarding the frequency of<unk> . A recent meta-analysis of 24 epidemiological studies on the prevalence of<unk>  in the general population aged 18 and older revealed that for ≥ 5<unk>  events per hour,<unk>  prevalence ranged from 9% to 38%, specifically ranging from 13% to 33% in men and 6% to 19% in women, while in the population aged 65 and older,<unk>  prevalence was as high as 84%, including 90% in men and 78% in women. Nevertheless, for ≥ 15<unk>  events per hour,<unk>  prevalence ranged from 6% to 17%, and almost 49% prevalence in the older population aged 65 and older. Moreover, a higher BMI is also linked to a higher prevalence of<unk> , where a 10% increase in body weight led to a 6-fold risk of<unk>  in obese men and women. However,<unk>  is underdiagnosed as it is not always accompanied by daytime sleepiness which can leave the sleep-disordered breathing unnoticed. The prevalence of<unk>  with daytime sleepiness is thus estimated to affect 3% to 7% of men and 2% to 5% of women, and the disease is common in both developed and developing countries.<unk>  prevalence increases with age and is most commonly diagnosed in individuals over 65 years old, with estimations ranging from 22.1% to 83.6%. The prevalence has drastically increased the past decades mainly explained by the obesity epidemic currently observed. Men are more affected by<unk>  than women, but the phenomenology differs between both genders. Snoring and witnessed<unk>  are more frequent among men but insomnia for example is more frequent among women. The<unk>  frequency increase with age for the women. The mortality is higher for women. Some studies report that it is more frequent among the Hispanic and African American population than among the white population. If studied carefully in a sleep lab by polysomnography (formal "sleep study"), it is believed that approximately 1 in 5 American adults would have at least mild<unk> .
Obstructive sleep apnea
Sleep apnea
Central sleep apnea
Obesity hypoventilation syndrome
Hyperventilation syndrome
Sleep-related breathing disorder
Central hypoventilation syndrome
Reactive airway disease