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Risk factors associated with short sleep duration among Chinese school-aged children
Shenghui Li1, Shankuan Zhu, Xinming Jin
1Shanghai Xin Hua Hospital Affiliated with Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China.
Insights
Short sleep duration affects 28.3% of Chinese school-aged children. Key risk factors include screen time, homework, poor sleep hygiene, and parental sleep habits, highlighting areas for intervention.
Area of Science:
- Pediatric Sleep Medicine
- Public Health Research
- Child Development Studies
Background:
- Short sleep duration is a growing concern among school-aged children globally.
- Understanding the specific risk factors in diverse populations like China is crucial for targeted interventions.
Purpose of the Study:
- To investigate the prevalence and identify risk factors associated with short sleep duration in Chinese school-aged children.
Main Methods:
- A cross-sectional survey of 20,778 children aged 5-11 years across eight Chinese cities in 2005.
- Parent-administered questionnaires collected data on sleep duration and potential influencing factors.
- Short sleep duration was defined as less than 9 hours per day.
Main Results:
- 28.3% of children experienced short sleep duration (<9 hours/day).
- Significant risk factors included increased screen time (TV, computer/internet), excessive homework, earlier school start times, and poor bedtime hygiene.
- Parental sleep duration also correlated with children's sleep duration.
Conclusions:
- Childhood sleep duration is influenced by a complex interplay of lifestyle, school schedules, and family habits.
- Interventions focusing on reducing screen time, optimizing school schedules, improving sleep hygiene, and addressing parental sleep patterns are recommended.
- Addressing these modifiable factors can help mitigate chronic sleep loss in school children.
Objectives:
To examine risk factors regarding short sleep duration among Chinese school-aged children.
Methods:
A random sample of 20,778 children aged around 5-11years participated in a cross-sectional survey, which was conducted in eight cities of China in 2005. A parent-administered questionnaire was used to collect information on children's sleep duration and possible related factors from eight domains. Short sleep duration was defined as total sleep duration <9h per day.
Results:
In all, 28.3% of the sampled children slept <9h per day. The multivariate logistic regression identified, after adjusting for demographic and socioeconomic variables, factors associated with short sleep duration: more television viewing during weekdays (OR=1.21, p=0.004), more frequent computer/internet using (OR=1.17, p=0.006), earlier school starting time (OR=1.10, p=0.020), more time on homework during weekdays (OR=1.66, p<0.001) and weekends (OR=1.14, p=0.001), poor bedtime hygiene (e.g., having drinks with caffeine after 6:00PM [OR=1.22, p<0.001], doing exciting activities during bedtime [OR=1.16, p<0.001], and irregular bedtime [OR=1.55, p<0.001]), and shorter sleep duration of parents (mother: OR=1.31, p<0.001 for sleep duration <6h and OR=1.24, p=0.006 for 6-8h; father: OR=1.52, p<0.001 for <6h and OR=1.19, p<0.001 for 6-8h).
Conclusions:
Factors associated with sleep duration covered multidimensional domains among school-aged children. Compared to sleep environments and chronic health problems, school schedules, lifestyle patterns, and parents' sleep habits had greater impact on children's sleep duration, indicating the existing chronic sleep loss in school children could be, at least partly, intervened by reducing the use of visual technologies, by changing the school schedules, by improving the sleep hygiene routine, and by regulating parents' sleep habits.
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