Abstract
Background
Myopia is one of the most commonly diagnosed refractive disorders worldwide. Identifying risk factors for myopia at an early age may help to characterize children who would benefit most from individualized lifestyle advice and early interventions. The influence of sleep duration on myopia risk remains controversial and thus needs to be evaluated.
Methods
A population-based cross-sectional study of Chinese school-aged children was conducted. Information on sleep duration was derived. The association between sleep duration and myopia risk was investigated by logistic regression analysis.
Results
Myopia prevalence among 9530 Chinese school-aged children was 75.4% and decreased from 84.9%, 76.5%, 65.8%, to 61.3% along with the extension of sleep duration. Univariate logistic regression found longer sleep duration of 8–9 h (OR = 0.58, 95% CI: 0.51–0.66), 9–10 h (OR = 0.34, 95% CI: 0.30–0.39), and ≥ 10 h (OR = 0.28, 95% CI: 0.24–0.33) were protective factors for myopia in all participants (P for trend < 0.001). In the multivariate analyses, sleep duration was inversely associated with the risk of myopia, and a dose-effect relationship was observed when the analysis was split by age category.
Conclusions
Long sleep duration was associated with decreased risk of myopia in Chinese school-aged children.
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Ethical approval
All procedures performed in studies involving human participants were following the ethical standards of the ethics committee of Ningbo Municipal Centers for Disease Control and Prevention and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Funding
This study was funded by the Ningbo Medical Science and Technology Project (No.2021Y26), Ningbo Public Welfare Science and Technology Project (No. 2022S077), and Ningbo Health Branding Subject Fund (No. PPXK2018-10).
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Study design: Danjie Jiang, Yan Zhang
Data acquisition: Qinghai Gong, Jinghui Wang, Hua Gao, Jia Hong, Yanbo Guo
Statistical analysis: Shujuan Lin, Danjie Jiang
Manuscript preparation and editing: Shujuan Lin
Manuscript revision/review: Yan Zhang, Danjie Jiang
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Lin, S., Gong, Q., Wang, J. et al. The association between sleep duration and risk of myopia in Chinese school-aged children: a cross-sectional study. Sleep Breath 27, 2041–2047 (2023). https://doi.org/10.1007/s11325-023-02794-4
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DOI: https://doi.org/10.1007/s11325-023-02794-4