Prevalence Information
		The prevalence of undiagnosed sleep-disordered breathing is high among men and is much higher than previously suspected among women. —Young, Palta, Dempsey, Skatrud, Weber, Badr. NEW ENGLAND JOURNAL OF MEDICINE 1993, 328:1230-1235.

Facts There exists a wide spectrum of undiagnosed sleep-disordered breathing among adults. Prevalence of sleep disordered breathing in the middle-aged work force is 4% of men and 2% of women who meet the minimal diagnostic criteria for sleep apnea syndrome (an apnea-hypopnea score of 5 or higher and daytime hypersomnolence). Habitual snorers are more likely to have apnea-hypopnea scores of 15 or higher. There is a higher frequency of Sleep Disordered Breathing in young African-Americans with the risk factor decreasing with age. This could be explained by a survival bias. Articles   Indicates that an article is available in hard copy. Please click on the image to use the Contact form to request the article. The Occurrence of Sleep-Disordered Breathing Among Middle-Aged Adults. —Terry Young, Mari Palta, Jerome Dempsey, James Skatrud, Steven Weber, Safwan Badr. NEW ENGLAND JOURNAL OF MEDICINE 1993, 328:1230-1235.   Racial Differences in Sleep-disordered Breathing in African-Americans and Caucasians. —Susan Redline, Peter V. Tishler, Mark G. Hans, Tor D. Tosteson, Kingman P. Strohl, Kathleen Spry. AMERICAN REVIEW OF REPIRATORY AND CRITICAL CARE MEDICINE 1997, 155:186-192.