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Clifford W. Zwillich, MD

JAMA. 2000;283:1880-1881.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Obstructive sleep apnea is the intermittent interruption of airflow through the nose and mouth that occurs during sleep and is considered present when individuals have more than 5 apneic episodes per hour of sleep.¹ Data from a cross-sectional population-based study² suggest that sleep-disordered breathing occurs in approximately 10% of randomly selected women and in 25% of men, many of whom appear to be asymptomatic and unaware of their breathing abnormality during sleep.

In this issue of THE JOURNAL, Nieto and colleagues³ describe the largest cohort of persons with sleep apnea studied thus far. Their findings again demonstrate a high prevalence of apneic events across racial and ethnic groups; almost half of the 6132 subjects studied had more than 5 episodes of apnea per hour of sleep. Their methods of recording respiration patterns during sleep by electroencephalogram were powerful because they collected technically high-quality respiratory variables in . . . [Full Text of this Article]

Author Affiliation: Denver Veterans Affairs Medical Center and School of Medicine, and Department of Medicine, University of Colorado Health Sciences Center, Denver.

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