Shaping school for childhood myopia: the association between floor area ratio of school environment and myopia in China,British Journal of Ophthalmology

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Shaping school for childhood myopia: the association between floor area ratio of school environment and myopia in China
British Journal of Ophthalmology ( IF 3.7 ) Pub Date : 2025-01-01 , DOI: 10.1136/bjo-2024-325448
Danqi Zeng ₁ , Yahan Yang ₁ , Yang Tang ₂ , Lanqin Zhao ₁ , Xun Wang ₁ , Dongyuan Yun ₁ , Wenben Chen ₁ , Yuanjun Shang ₁ , Andi Xu ₁ , Huipeng Liao ₃ , Xingying Zhang ₄ , Duoru Lin ₅ , Haotian Lin _{5,

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Affiliation

Aim To investigate the association of floor area ratio (FAR), an indicator of built environments, and myopia onset. Methods This prospective cohort study recruited 136 753 children aged 6–10 years from 108 schools in Shenzhen, China at baseline (2016–2017). Refractive power was measured with non-cycloplegic autorefraction over a 2-year follow-up period. FAR was objectively evaluated using geographical information system technology. Mixed-effects logistic regression models were constructed to examine the association of FAR with a 2-year cumulative incidence of myopia among individuals without baseline myopia; multiple linear regression model, with a 2-year cumulative incidence rate of myopia at each school. Results Of 101 624 non-myopic children (56.3% boys; mean (SE) age, 7.657±1.182 years) included in the study, 26 391 (26.0%) of them developed myopia after 2 years. In the individual-level analysis adjusting for demographic, socioeconomic and greenness factors, an IQR in FAR was associated with a decreased risk of 2-year myopia incidence (OR 0.898, 95% CI 0.866 to 0.932, p<0.001). Similar findings were observed in the analysis additionally adjusted for genetic and behavioural factors (OR 0.821, 95% CI 0.766 to 0.880, p<0.001). In the school-level, an IQR increase in FAR was found to be associated with a 2.0% reduction in the 2-year incidence rate of myopia (95% CI 1.3% to 2.6%, p<0.001). Conclusions Exposure to higher FAR was associated with a decreased myopia incidence, providing insights into myopia prevention through school built environments in China. Data are available on reasonable request.

更新日期：2024-12-18

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