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Green Space Morphology and School Myopia in China.
Yang, Yahan; Liao, Huipeng; Zhao, Lanqin; Wang, Xun; Yang, XiaoWei; Ding, Xiaohu; Li, Xuelong; Jiang, Zhiyu; Zhang, Xingying; Zhang, Qingling; He, Huagui; Guo, Liang; Lin, Hualiang; Dong, Guanghui; Spencer, Bryan; He, Mingguang; Congdon, Nathan; Morgan, Ian George; Lin, Haotian.
  • Yang Y; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
  • Liao H; Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill.
  • Zhao L; Guangzhou Urban Planning and Design Survey Research Institute, Guangzhou, China.
  • Wang X; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
  • Yang X; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
  • Ding X; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
  • Li X; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
  • Jiang Z; Centre for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, China.
  • Zhang X; Centre for OPTical IMagery Analysis and Learning (OPTIMAL), Northwestern Polytechnical University, Xi'an, China.
  • Zhang Q; Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites (LRCVES/CMA), National Satellite Meteorological Center, China Meteorological Administration (NSMC/CMA), Beijing, China.
  • He H; School of Aeronautics and Astronautics, Sun Yat-sen University, Shenzhen, China.
  • Guo L; Guangzhou Urban Planning and Design Survey Research Institute, Guangzhou, China.
  • Lin H; Guangzhou Urban Planning and Design Survey Research Institute, Guangzhou, China.
  • Dong G; Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
  • Spencer B; Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, China.
  • He M; Department of Management, College of Business, City University of Hong Kong, Hong Kong, Special Administrative Region of China.
  • Congdon N; PolyU School of Optometry, Hong Kong Polytechnic University, Hong Kong, Special Administrative Region of China.
  • Morgan IG; State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Centre, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Vision Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
  • Lin H; Centre for Public Health, Queen's University Belfast, Belfast, United Kingdom.
JAMA Ophthalmol ; 142(2): 115-122, 2024 Feb 01.
Article en En | MEDLINE | ID: mdl-38175641
ABSTRACT
Importance China has experienced both rapid urbanization and major increases in myopia prevalence. Previous studies suggest that green space exposure reduces the risk of myopia, but the association between myopia risk and specific geometry and distribution characteristics of green space has yet to be explored. These must be understood to craft effective interventions to reduce myopia.

Objective:

To evaluate the associations between myopia and specific green space morphology using novel quantitative data from high-resolution satellite imaging. Design, Setting, and

Participants:

This prospective cohort study included students grades 1 to 4 (aged 6 to 9 years) in Shenzhen, China. Baseline data were collected in 2016-2017, and students were followed up in 2018-2019. Data were analyzed from September 2020 to January 2022. Exposures Eight landscape metrics were calculated using land cover data from high-resolution Gaofen-2 satellite images to measure area, aggregation, and shape of green space. Main Outcome and

Measures:

The 2-year cumulative change in myopia prevalence at each school and incidence of myopia at the student level after 2 years were calculated as main outcomes. The associations between landscape metrics and school myopia were assessed, controlling for geographical, demographic, and socioeconomic factors. Principal component analyses were performed to further assess the joint effect of landscape metrics at the school and individual level.

Results:

A total of 138 735 students were assessed at baseline. Higher proportion, aggregation, and better connectivity of green space were correlated with slower increases in myopia prevalence. In the principal component regression, a 1-unit increase in the myopia-related green space morphology index (the first principal component) was negatively associated with a 1.7% (95% CI, -2.7 to -0.6) decrease in myopia prevalence change at the school level (P = .002). At the individual level, a 1-unit increase in myopia-related green space morphology index was associated with a 9.8% (95% CI, 4.1 to 15.1) reduction in the risk of incident myopia (P < .001), and the association remained after further adjustment for outdoor time, screen time, reading time, and parental myopia (adjusted odds ratio, 0.88; 95% CI, 0.80 to 0.97; P = .009). Conclusions and Relevance Structure of green space was associated with a decreased relative risk of myopia, which may provide guidance for construction and renovation of schools. Since risk estimates only indicate correlations rather than causation, further interventional studies are needed to assess the effect on school myopia of urban planning and environmental designs, especially size and aggregation metrics of green space, on school myopia.
Asunto(s)

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Parques Recreativos / Miopía Tipo de estudio: Etiology_studies / Observational_studies / Prevalence_studies / Risk_factors_studies Límite: Humans País como asunto: Asia Idioma: En Año: 2024 Tipo del documento: Article

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Parques Recreativos / Miopía Tipo de estudio: Etiology_studies / Observational_studies / Prevalence_studies / Risk_factors_studies Límite: Humans País como asunto: Asia Idioma: En Año: 2024 Tipo del documento: Article