Epidemiology of Obstructive Sleep Apnea: a Population-based Perspective

Area of Science:

• Sleep Medicine
• Epidemiology
• Public Health

Background:

• Obstructive sleep apnea (OSA) is a prevalent condition with significant health implications.
• The global obesity epidemic is a major driver of increasing OSA prevalence.
• Many OSA cases remain undiagnosed, leading to delayed treatment and adverse outcomes.

Purpose of the Study:

• To review the current literature on the epidemiology of adult obstructive sleep apnea (OSA).
• To analyze risk factors and associated medical conditions linked to OSA.
• To highlight the economic burden and diagnostic challenges of OSA.

Main Methods:

• Systematic review of population-based epidemiological studies on adult OSA.
• Analysis of risk factors such as obesity, aging, gender, menopause, and ethnicity.
• Discussion of comorbidities including hypertension, stroke, cardiovascular disease, and neurocognitive dysfunction.

Main Results:

• Consistent OSA prevalence rates observed across diverse geographic regions and ethnic groups, despite methodological variations.
• Key risk factors identified include obesity, advanced age, male gender, post-menopause, and specific ethnicities.
• Significant associations found between OSA and hypertension, stroke, heart failure, coronary artery disease, cardiovascular mortality, insulin resistance, and cognitive impairment.

Conclusions:

• OSA is a widespread condition with identifiable risk factors and serious health consequences.
• The economic burden of OSA is substantial and growing, exacerbated by the obesity epidemic.
• Improved diagnostic access and recognition of the undiagnosed OSA population are critical for effective public health management.