Delayed school start time is associated with better sleep, mental health, and life satisfaction among residential high-school students: A prospective study

Delayed school start time is associated with better sleep, mental health, and life satisfaction among residential high-school students: A prospective study

• Chan, Christian S. The University of Hong Kong
• Tang, Ming Chun The University of Hong Kong
• Leung, Jacklyn C. Y. The University of Hong Kong
• Poon, Cyanea Y. S. University of Massachusetts Boston
• Lau, Esther Yuet Ying The Education University of Hong Kong

Sleep, 47(11), 2024

Oxford University Press

2024

• B Human Behaviour
  • BD Mental Health

Sleep Delayed School Start Time Adolescence Mental Health

• Hong Kong

• 1997.7 onwards

• Post-Secondary Education

This study examined the longer-term individual- and school-level changes in students 7 months after a 1-hour delay in school start time (SST). Two cohorts of grade 11 students (N = 227; 60.8% female, age = 17.0 [0.85]) at a residential high school in Hong Kong completed a questionnaire assessing sleep duration, insomnia symptoms, depression, anxiety, stress, and subjective well-being in 2017 and 2018, respectively. One of the cohorts was reassessed 7 months after the implementation of a delay in SST, from 07:30 am to 08:30 am (n = 83, 65.1% female). School-level data on breakfast consumption, attendance, tardiness, and health clinic visits were collected. Between-group and within-group prospective comparisons suggest that the delay in SST was associated with improved sleep duration, mental health, and life satisfaction. School-level data revealed increased breakfast consumption and decreased unexcused absences, tardiness, and clinic visits. Copyright © 2024 The Author(s).

• English

Journal Articles

• 01618105

• 10.1093/sleep/zsae171

https://bibliography.lib.eduhk.hk/bibs/66d45dd2

2025-04-17