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Activity Number:
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209
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Type:
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Contributed
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Date/Time:
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Monday, July 30, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Government Statistics
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| Abstract - #309183 |
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Title:
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Waiting Time Distributions of Sleep
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Author(s):
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Anna Mnatsakanova*+ and James Slaven and John M. Violanti and Bryan J. Vila and Cecil M. Burchfiel and Michael Andrew
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Companies:
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National Institute for Occupational Safety and Health and National Institute for Occupational Safety and Health and State University of New York at Buffalo and Washington State University and National Institute for Occupational Safety and Health and Centers for Disease Control and Prevention
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Address:
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1095 Willowdale Road, Morgantown, WV, 26505,
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Keywords:
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Sleep quality ; waiting times ; distribution analysis
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Abstract:
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Waiting time distribution is a novel way to look at the quality of sleep. To elucidate sleep, we have characterized sleep quality by calculating the distributions of time from a state of sleep until first disturbance (waiting time distributions) over periods of time for each individual, and analyzed these waiting time distributions. Quality of sleep of participants from a study of stress and fatigue in police officers was categorized as good or poor using accelerometer-derived sleep variables. Twelve subjects, six of each quality, were chosen to explore the differences between sleep qualities with respect to waiting time distributions. Waiting time distributions were calculated and non-parametric analyses were performed. Nonparametric analysis showed that there were significant differences in median times between the two groups.
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