Abstract
ObjectiveThis study sought to evaluate associations between sleep time and bicycle accidents, falls under various circumstances, and dental injuries in adolescents.MethodsA total of 61,696 participants ranging from 12 to 18 years of age who completed the Korea Youth Risk Behavior Web-based Survey (KYRBWS) in 2013 were enrolled in this study. Bicycle riding accidents were analyzed for 17,232 bicycle-riding participants. Data were collected regarding the weekday sleep duration for the most recent 7 days, which was categorized as < 5.5 h, 5.5–6.5 h, 6.5–7.5 h, or ≥ 7.5 h per day, and the incidence of bicycle accidents, slips and falls under various circumstances, and dental injuries in the most recent 12 months. Adjusted odds ratios (aORs) were calculated among sleep groups for bicycle accidents, slips and falls, and dental injuries using simple and multiple logistic regression analyses with complex sampling.ResultsBicycle riding accidents and slips and falls in classrooms, corridors, the ground, toilets, stairs, and other unspecified situations showed positive correlations with sleep deprivation. Comparisons of groups with ≥ 7.5 h sleep, < 5.5 h, 5.5–6.5 h sleep, and 6.5–7.5 h sleep revealed increased associations with slips and falls under various circumstances. In particular, the aORs were higher in the groups with less sleep (aOR of the 5.5 h group > the 5.5–6.5 h group > the 6.5–7.5 h group). There was no significant relationship between sleep deprivation and dental injury.ConclusionsThis study demonstrated that sleep deprivation among Korean adolescents was associated with bicycle accidents and falls at home and school. Thus, adequate sleep may be needed to prevent accidents and falls.
Highlights
The Adjusted odds ratios (aORs) were higher in the groups with less sleep
There was no significant relationship between sleep deprivation and dental injury
This study demonstrated that sleep deprivation among Korean adolescents was associated with bicycle accidents and falls at home and school
Summary
Academic burdens force adolescents to remain awake until late at night and wake early in the morning for early school start times. It has been estimated that the average sleep time for American adolescents is approximately 7.5–8.5 h per day, which is less than 6.5 h on school days [2]. Korean adolescents are more sleep deprived at approximately 4.86– 5.62 h per day, which is mainly attributed to academic demands or stress and early school start times [3]. Recent studies have suggested that sleep deprivation and sleepiness in sequence increase the risks of obesity, asthma, drowsy driving and motor vehicle accidents [8,9,10,11,12]. Mood disorders, major depressive disorders, may lead to sleep deprivation [14]
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