1. Secular trends of sleep-wake patterns in Hong Kong preschoolers.
- Author
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Lan, Qiu-Ye, Chan, Kate Ching-Ching, Au, Chun-Ting, Chan, Peggy Hiu-Ying, Chan, Ngan Yin, Wing, Yun Kwok, Li, Albert Martin, and Lam, Hugh Simon
- Subjects
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PRESCHOOL children , *SLEEP latency , *SLEEP duration , *DIGITAL media - Abstract
To evaluate the secular trends of sleep-wake patterns of Hong Kong preschool children. Kindergartens from the four geographical regions of Hong Kong were randomly invited to take part in a sleep survey in 2012 and again in 2018. The parent-completed questionnaire provided information on socioeconomic status (SES), children's, and parental sleep-wake patterns. Secular trends and risk factors associated with short sleep duration in preschoolers were explored. A sample of 5048 preschool children was included in the secular comparison, with 2306 and 2742 from the 2012 and 2018 surveys, respectively. A higher percentage of children in 2018 (41.1% vs 26.7%, p < 0.001) did not achieve the recommended sleep duration. During the survey years, sleep duration decreased by 13 ([95%CI: 18.5 to −8.1]) and 18 min ([95%CI: 23.6 to −12.2]) on weekdays and weekends, respectively. The overall trend of nap decrease was not significant. Sleep onset latency significantly increased on both weekdays (6 min [95%CI: 3.5 to 8.5]) and weekends (7 min [95%CI: 4.7 to 9.9]). Children's sleep duration was positively correlated with parental sleep duration with a correlation coefficient ranging from 0.16 to 0.27 (p < 0.001). A significant proportion of Hong Kong preschool children did not achieve the recommended amount of sleep. A downward secular trend in sleep duration was observed during the survey period. Public health measures to improve sleep duration in preschool children should be a high priority. • A downward secular trend in sleep duration is observed in Hong Kong preschoolers. • Parental sleep duration is also significantly shorter during the survey period. • Bedtime access to electronic media devices is a risk factor for reduced sleep duration. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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