Chen Chris Xie, Zhang Ji-Hui, Li Shirley Xin, Chan Kate Ching Ching, Li Albert Martin, Kong Alice Pik Shan, Chan Joey Wing Yan, Wing Yun Kwok, Chan Ngan Yin
Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
Li Chiu Kong Family Sleep Assessment Unit, Department of Psychiatry, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China; Center for Sleep and Circadian Medicine, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China; Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou Medical University, Guangzhou, China.
Sleep Med. 2024 May;117:62-70. doi: 10.1016/j.sleep.2024.03.003. Epub 2024 Mar 11.
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.
本研究旨在调查中国香港青少年睡眠和昼夜节律问题的长期趋势。
本研究分析了2011 - 2012年和2017 - 2019年进行的两项大规模学校睡眠调查的横断面数据。比较了两个调查年份之间的睡眠和昼夜节律问题，包括睡眠 - 觉醒模式、失眠、昼夜类型、社会时差、白天嗜睡以及其他与睡眠相关的因素。
在这项为期7年的研究中，共纳入了8082名青少年（2011 - 2012年有5639名学生[平均年龄：14.4岁，男生占50.9%]，2017 - 2019年有2443名学生[平均年龄：14.7岁，男生占54.0%]）。从2011 - 2012年到2017 - 2019年，中国香港青少年的平均卧床时间从8.38小时降至8.08小时。工作日就寝时间延迟了0.28小时，周末起床时间提前了0.54小时，平均卧床时间减少了0.36小时，导致睡眠不足（卧床时间<8小时：比值比=2.06，95%置信区间：1.44 - 2.93，p<0.01；卧床时间<7小时：比值比=2.73，95%置信区间：1.92 - 3.89，p<0.01）、白天嗜睡（比值比=1.70，95%置信区间：1.34 - 2.16，p<0.01）和晚睡倾向（比值比=1.26，95%置信区间：1.08 - 1.48，p<0.01）的趋势增加。然而，在调整协变量后，失眠障碍的增加趋势不显著。
观察到从2011 - 2012年到2017 - 2019年，青少年的卧床时间减少、工作日就寝时间延迟、周末起床时间提前、晚睡倾向和白天嗜睡增加的长期趋势。迫切需要进行系统干预以促进青少年的睡眠健康。
