Journal
SLEEP MEDICINE
Volume 67, Issue -, Pages 191-199Publisher
ELSEVIER
DOI: 10.1016/j.sleep.2019.12.001
Keywords
Actigraphy; Children; School age; Sleep patterns; Sleep deprivation
Categories
Funding
- National Science Foundation [1918797]
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Objective: This study investigates sleep patterns of fourth- and fifth-grade students using actigraphy. Methods: The study included 257 students enrolled in a Southwestern US school district who participated in a novel sleep science curriculum during the Spring 2016-17 and Fall 2017-18 semesters and met the study inclusion criteria. As part of this curriculum, participants underwent 5-7 days of continuous wrist actigraphy and completed an online sleep diary. Results: Approximately two-thirds of the 9-11-year-old fourth- and fifth-grade students slept less than the minimum 9 h per night recommended by both the American Academy of Sleep Medicine/Sleep Research Society and the National Sleep Foundation. The sleep midpoint time on weekends was about 1 h later than on weekdays. There was a significant effect of age on sleep duration. Compared to 9-year old students, a larger proportion of 10-year old students had a sleep duration less than 8.5 h. Boys had shorter sleep duration than girls, and a larger percentage of boys obtained less than 9 h of sleep compared to girls. Conclusions: Insufficient sleep is a highly prevalent condition among 9-11-year-old fourth- and fifthgrade elementary students. Importantly, there is a difference between sleep patterns on weekdays and weekends which may portend greater problems with sleep in adolescence and young adulthood. (C) 2019 Elsevier B.V. All rights reserved.
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