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Secular trends in sleep and circadian problems among adolescents in Hong Kong: From 2011-2012 to 2017-2019
Sleep Medicine ( IF 4.8 ) Pub Date : 2024-03-11 , DOI: 10.1016/j.sleep.2024.03.003 Chris Xie Chen , Ji-hui Zhang , Shirley Xin Li , Kate Ching Ching Chan , Albert Martin Li , Alice Pik Shan Kong , Joey Wing Yan Chan , Yun Kwok Wing , Ngan Yin Chan
Sleep Medicine ( IF 4.8 ) Pub Date : 2024-03-11 , DOI: 10.1016/j.sleep.2024.03.003 Chris Xie Chen , Ji-hui Zhang , Shirley Xin Li , Kate Ching Ching Chan , Albert Martin Li , Alice Pik Shan Kong , Joey Wing Yan Chan , Yun Kwok Wing , Ngan Yin Chan
The study aimed to investigate secular trends in sleep and circadian problems in Hong Kong Chinese adolescents. This study analyzed cross-sectional data from two large-scale school-based sleep surveys conducted in 2011-2012 and 2017-2019. Sleep and circadian problems, including sleep-wake pattern, insomnia, chronotype, social jetlag, daytime sleepiness, and other sleep-related factors, were compared between two survey years. A total of 8082 adolescents (5639 students in 2011-2012 [Mean age: 14.4 years, 50.9% boys] and 2443 students in 2017-2019 [Mean age: 14.7 years, 54.0% boys]) were included in this 7-year study. The average time in bed of Hong Kong adolescents decreased from 8.38 hours to 8.08 hours from 2011-2012 to 2017-2019. There was a 0.28-hour delay in weekday bedtime, 0.54-hour advance in weekend wake-up time, and a 0.36-hour decline in average time in bed, resulting in increased trends of sleep loss (Time in bed <8h: OR = 2.06, 95%CI: 1.44–2.93, p < 0.01; Time in bed <7h: OR = 2.73, 95%CI: 1.92–3.89, p < 0.01), daytime sleepiness (OR = 1.70, 95%CI: 1.34–2.16, p < 0.01), and evening chronotype (OR = 1.26, 95%CI: 1.08–1.48, p < 0.01). The increased trend in insomnia disorder, however, was insignificant when covariates were adjusted. A secular trend of reduced time in bed, delay in weekday bedtime, advance in weekend wake-up time, increase in evening chronotype and daytime sleepiness from 2011-2012 to 2017-2019 were observed. There is a timely need for systematic intervention to promote sleep health in adolescents.
更新日期：2024-03-11
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