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However, comparable information among adults from low- and middle-income countries (LAMICs), particularly young adults are sparse. Such efforts, in part, have led to the documentation of the high prevalence of unhealthy sleep behaviors and self-reported sleep-related difficulties among US adults. In recognition of the importance of sufficient sleep to population health, organizations such as the World Association of Sleep Medicine have begun to mobilize health professionals to deliver messages about the importance of healthy sleep habits to populations worldwide.įurthermore, public health agencies such as the US Centers for Disease Control and Prevention have expanded surveillance of sleep-related behaviors in recent years. A growing body of evidence, primarily from populations in high-income countries, shows a decreasing trend in average sleep duration and a higher prevalence of insomnia and other sleep disorders, –. A recent poll by the National Sleep foundation in the US has found that 43% of Americans between the ages of 13 and 64 years suffer from sleep insufficiency. Moreover, daytime sleepiness has been shown to contribute to motor vehicle crashes, industrial disasters, and medical and other occupational errors. Individuals experiencing poor sleep quality and insomnia symptoms have increased risks of chronic disorders such as cancer, hypertension, diabetes, psychiatric symptoms, cognitive impairment and obesity, as well as increased mortality, and reduced quality of life and productivity. Sleep insufficiency, caused by societal factors such as round-the-clock access to technology and work schedules is recognized as an important global public health problem – affecting some 45% of the world's population.
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The NIH had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. The authors wish to thank the participating universities for supporting the conduct of this study. The participant level data are available on request from the authors who may be contacted at The country-specific ethical committees do not allow public deposition of the data.įunding: This work was supported by an award from the National Institutes of Health, National Institute of Minority Health and Health Disparities (T37-MD001449). This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: The authors confirm that all data underlying the findings are fully available without restriction. Received: AugAccepted: DecemPublished: December 31, 2014Ĭopyright: © 2014 Gelaye et al.
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PLoS ONE 9(12):Įditor: Suxia Li, Peking University, China (2014) Construct Validity and Factor Structure of the Pittsburgh Sleep Quality Index and Epworth Sleepiness Scale in a Multi-National Study of African, South East Asian and South American College Students. Citation: Gelaye B, Lohsoonthorn V, Lertmeharit S, Pensuksan WC, Sanchez SE, Lemma S, et al.