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<p>Sleep is essential for physical and cognitive health, yet insufficient sleep has become increasingly prevalent among children and adolescents, with adverse effects on both physical and mental well-being. This study aimed to assess the prevalence of insufficient sleep and examine demographic, familial, and behavioural factors associated with sleep insufficiency among school-aged children in Wuxi, China. A cross-sectional survey was conducted from January to July 2024 using a multistage stratified random cluster sampling design. Children and adolescents aged 6–17 years from primary and secondary schools in Wuxi completed anonymous questionnaires covering sleep duration, demographic characteristics, daily physical activity, and screen time. Students with medical conditions that could affect growth, cognitive function, or study participation were excluded. Sleep insufficiency was defined according to national guidelines for daily learning time. Univariable χ<sup>2</sup> tests and multivariable logistic regression analyses were performed to identify factors associated with insufficient sleep. A total of 23,167 students were included in the analysis, and the overall prevalence of insufficient sleep was 51.7%. Multivariable analysis showed that female sex, higher educational stage, graduating class status, higher parental educational attainment, and daily screen time ≥ 2&#xa0;h were associated with increased odds of insufficient sleep, whereas boarding school attendance and daily physical activity ≥ 1&#xa0;h were associated with lower odds of insufficient sleep. Insufficient sleep affects more than half of children and adolescents in Wuxi and is influenced by multiple demographic, familial, and behavioural factors. Prolonged screen exposure was associated with a higher risk of insufficient sleep, whereas regular physical activity was associated with a lower risk. These findings underscore the need for targeted interventions and public health strategies to promote healthy sleep habits among school-aged populations. Longitudinal and experimental studies are warranted to clarify causal pathways and inform evidence-based policies.</p>

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Prevalence of insufficient sleep and its associated factors among children and adolescents in Wuxi, China: a cross-sectional survey

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月9日

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  • Defa Zhang,
  • Kai Chen,
  • Runcheng Yu,
  • Peng Yu,
  • Xiaogan Chen

摘要

Sleep is essential for physical and cognitive health, yet insufficient sleep has become increasingly prevalent among children and adolescents, with adverse effects on both physical and mental well-being. This study aimed to assess the prevalence of insufficient sleep and examine demographic, familial, and behavioural factors associated with sleep insufficiency among school-aged children in Wuxi, China. A cross-sectional survey was conducted from January to July 2024 using a multistage stratified random cluster sampling design. Children and adolescents aged 6–17 years from primary and secondary schools in Wuxi completed anonymous questionnaires covering sleep duration, demographic characteristics, daily physical activity, and screen time. Students with medical conditions that could affect growth, cognitive function, or study participation were excluded. Sleep insufficiency was defined according to national guidelines for daily learning time. Univariable χ2 tests and multivariable logistic regression analyses were performed to identify factors associated with insufficient sleep. A total of 23,167 students were included in the analysis, and the overall prevalence of insufficient sleep was 51.7%. Multivariable analysis showed that female sex, higher educational stage, graduating class status, higher parental educational attainment, and daily screen time ≥ 2 h were associated with increased odds of insufficient sleep, whereas boarding school attendance and daily physical activity ≥ 1 h were associated with lower odds of insufficient sleep. Insufficient sleep affects more than half of children and adolescents in Wuxi and is influenced by multiple demographic, familial, and behavioural factors. Prolonged screen exposure was associated with a higher risk of insufficient sleep, whereas regular physical activity was associated with a lower risk. These findings underscore the need for targeted interventions and public health strategies to promote healthy sleep habits among school-aged populations. Longitudinal and experimental studies are warranted to clarify causal pathways and inform evidence-based policies.