The Epidemiology of Sleep Quality and Consumption of Stimulant Beverages among Patagonian Chilean College StudentsReport as inadecuate

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Sleep DisordersVolume 2013 2013, Article ID 910104, 10 pages

Research Article

Centro de Rehabilitación Club de Leones Cruz del Sur, Punta Arenas, Suiza 01441, Chile

Department of Epidemiology, Multidisciplinary International Research Training Program, Harvard University School of Public Health, Boston, MA 02131, USA

Departments of Epidemiology and Global Health, University of Washington, Seattle, WA 98195, USA

Received 30 January 2013; Revised 27 March 2013; Accepted 20 April 2013

Academic Editor: Diego Garcia-Borreguero

Copyright © 2013 Juan Carlos Vélez et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objectives. 1 To assess sleep patterns and parameters of sleep quality among Chilean college students and 2 to evaluate the extent to which stimulant beverage use and other lifestyle characteristics are associated with poor sleep quality. Methods. A cross-sectional study was conducted among college students in Patagonia, Chile. Students were asked to complete a self-administered questionnaire to provide information about lifestyle and demographic characteristics. The Pittsburgh Sleep Quality Index PSQI was used to evaluate sleep quality. In addition, students underwent a physical examination to collect anthropometric measurements. Results. More than half of students 51.8% exhibited poor sleep quality. Approximately 45% of study participants reported sleeping six hours or less per night and 9.8% used medications for sleep. In multivariate analysis, current smokers had significantly greater daytime dysfunction due to sleepiness and were more likely to use sleep medicines. Students who reported consumption of any stimulant beverage were 1.81 times as likely to have poor sleep quality compared with those who did not consume stimulant beverages OR:1.81, 95% CI:1.21–2.00. Conclusions. Poor sleep quality is prevalent among Chilean college students, and stimulant beverage consumption was associated with the increased odds of poor sleep quality in this sample.

Author: Juan Carlos Vélez, Aline Souza, Samantha Traslaviña, Clarita Barbosa, Adaeze Wosu, Asterio Andrade, Megan Frye, Annette L



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