Prevalence of sleep disorder in Chinese preschoolers: a national population-based study

Hua, J., Lyu, J. and Du, W. ORCID: 0000-0002-5115-7214, 2022. Prevalence of sleep disorder in Chinese preschoolers: a national population-based study. Nature and Science of Sleep, 14, pp. 2091-2095. ISSN 1179-1608

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Study Objectives: This study provides data on the prevalence of clinical sleep disorders in Chinese preschoolers aged 3-5 years old and examined their sleep behaviours and problems with a nationally representative sample.

Methods: A national population-based cohort study was conducted with 114,311 children aged 3-5 years old from 551 cities in China. Children's daily sleep hours and pediatric sleep disorders defined by the Children's Sleep Habits Questionnaire (CSHQ) were reported by parents.

Results: The estimated sleep disorder prevalence was 76.78% (95% CI:76.54%, 77.03%). Rates of specific disorders were as follows: Bedtime resistance (97.00%, 95% CI:96.90%, 97.10%), Daytime sleepiness (77.68%,95% CI:77.43%, 77.92%), Sleep duration (70.24%,95% CI:69.97%, 70.50%), Parasomnia (58.52%,95% CI:58.23%, 58.80%), Sleep anxiety (55.53%,95% CI:55.24%, 55.81%), Sleep onset delay (51.99%,95% CI:51.70%, 52.28%) Night wakings (30.37%,95% CI:30.10%, 30.63%) and Sleep-disordered breathing (21.86%, 95% CI: 21.62%, 22.09%). The prevalence of sleep disorder, daily sleep hours and rates of specific disorder varied across children of different sex and ages.

Conclusion: A high prevalence of sleep disorder was found in Chinese preschoolers, and the specific sleep problems of Chinese preschoolers vary from other cultures. A local standard may be required when using the CSHQ to define sleep disorders in children in China. An in-depth investigation into the reasons for the high sleep disorder prevalence should be conducted and supportive intervention should be provided to preschoolers in China.

Item Type: Journal article
Publication Title: Nature and Science of Sleep
Creators: Hua, J., Lyu, J. and Du, W.
Publisher: Dove Medical Press
Date: 24 November 2022
Volume: 14
ISSN: 1179-1608
Rights: This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution – Non Commercial (unported, v3.0) License ( By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms (
Divisions: Schools > School of Social Sciences
Record created by: Jonathan Gallacher
Date Added: 25 Nov 2022 16:08
Last Modified: 25 Nov 2022 16:08

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