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The association between sleep duration and risk of myopia in Chinese school-aged children: a cross-sectional study
Shujuan Lin1,2, Qinghai Gong3, Jinghui Wang3
1School of Basic Medical Science, Putian University, Putian, China.
Insights
Longer sleep duration is linked to a reduced risk of myopia in children. This study highlights sleep as a potential protective factor against myopia development in school-aged children.
Area of Science:
- Ophthalmology
- Public Health
- Pediatrics
Background:
- Myopia is a prevalent global refractive disorder.
- Early identification of myopia risk factors is crucial for interventions.
- The impact of sleep duration on myopia risk requires further investigation.
Purpose of the Study:
- To evaluate the association between sleep duration and myopia risk in Chinese school-aged children.
- To provide evidence for lifestyle advice and early interventions.
Main Methods:
- A population-based cross-sectional study involving 9530 Chinese school-aged children.
- Data on sleep duration was collected.
- Logistic regression analysis was used to investigate the association between sleep duration and myopia risk.
Main Results:
- Myopia prevalence was 75.4% in the study population.
- Longer sleep durations (8-10 hours and ≥10 hours) were significantly associated with a decreased risk of myopia.
- A dose-effect relationship was observed, with longer sleep durations showing greater protective effects.
Conclusions:
- Increased sleep duration is a protective factor against myopia in Chinese school-aged children.
- Findings suggest sleep duration should be considered in myopia prevention strategies.
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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