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Greenness surrounding schools and adiposity in children and adolescents: Findings from a national population-based study in China

机译：儿童和青少年的绿色周围的学校和肥胖：来自中国国家人口研究的调查结果

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摘要

Background: Previous studies have indicated that exposure to green space may benefit human health. However, the available evidence concerning the effects of greenness, especially school-based greenness, on pediatric obesity is scarce. Objective: To explore the association between school-based greenness and adiposity in children and adolescents in China. Method: We conducted a nationwide cross-sectional study of 56,620 children and adolescents (aged 6-18 years) in seven provinces/municipalities across China. School-based greenness was assessed using satellite-derived Normalized Difference Vegetation Index (NDVI) and Soil Adjusted Vegetation Index (SAVI) within 100-, 500-, and 1000-m circular buffers around each school's address. Generalized linear mixed regression models were used to estimate associations of greenness with BMI z-scores (zBMI), waist circumference, and prevalent overweight/obesity. We also explored the potential mediating role of ambient air pollution and physical activity in the greenness-adiposity associations. Result: In the adjusted model, an IQR increase in NDVI_(1000m) was associated with lower zBMI (β -0.11, 95% confidence interval[CI]: -0.13,-0.09) and waist circumference (β: -0.64, 95%CI: -0.78,-0.50). Consistently, an IQR increase in NDVI_(1000m). NDVL_(500m), NDVI_(1000m) was associated with 7-20% lower odds of overweight/obesity in the adjusted models. Air pollutants mediated 6.5-29.1% of the association between greenness and zBMI. No significant mediation effect was observed for physical activity. Conclusion: Higher school-based greenness levels were associated with lower zBMI, waist circumference, and lower odds of overweight and obesity in children and adolescents. Ambient air pollutants may partially mediate the greenness-adiposity associations.
机译：背景：以前的研究表明，暴露于绿地空间可能会使人类健康受益。然而，有关绿色，特别是学校的绿色的效果对儿科肥胖的可用证据是稀缺的。目的：探讨中国儿童与青少年的校本绿色和肥胖的关联。方法：在中国的七个省/市，对56,620名儿童和青少年（6-18岁）进行了全国范围的横断面研究。使用卫星源性归一化差异植被指数（NDVI）和土壤调整后的植被指数（SAVI）在每所学校的地址周围100-，500 - 和1000米的循环缓冲区内进行评估。广义线性混合回归模型用于估计绿色与BMI Z分数（ZBMI），腰围和普遍的超重/肥胖的关联。我们还探讨了环境空气污染和体育活动在绿色肥胖关联中的潜在调解作用。结果：在调整后的模型中，NDVI_（1000M）的IQR增加与较低的ZBMI（β-0.11,95％置信区间[CI]：-0.13，-0.09）和腰围（β：-0.64,95％相关CI：-0.78，-0.50）。一致地，NDVI_（1000米）的IQR增加。 NDVL_（500M），NDVI_（1000M）与调整后的模型中的超重/肥胖的几率下降7-20％。空气污染物介导绿化和ZBMI之间的关联率为6.5-29.1％。对于身体活动没有观察到显着的调解效果。结论：较高的职业绿色水平与ZBMI，腰围较低，腰围和儿童和青少年超重和肥胖的几率较低。环境空气污染物可能部分介导绿色肥胖症关联。

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  • 来源
    《Environmental research》 |2021年第1期|110289.1-110289.8|共8页
  • 作者

    Wen-Wen Bao; Bo-Yi Yang; Zhi-Yong Zou; Jun Ma; Jin Jing; Hai-Jun Wang; Jia-You Luo; Xin Zhang; Chun-Yan Luo; Hong Wang; Hai-Ping Zhao; De-Hong Pan; Zhao-Huan Gui; Jing-Shu Zhang; Yu-Ming Guo; Ying-Hua Ma; Guang-Hui Dong; Ya-Jun Chen;

  • 作者单位

    Department of Maternal and Child Health School of Public Health Sun Yat-sen University Guangzhou 510080 China;

    Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment Department of Preventive Medicine School of Public Health Sun Yat-sen University Guangzhou 510080 China;

    Institute of Child and Adolescent Health School of Public Health Peking University Beijing 100191 China;

    Institute of Child and Adolescent Health School of Public Health Peking University Beijing 100191 China;

    Department of Maternal and Child Health School of Public Health Sun Yat-sen University Guangzhou 510080 China;

    Department of Maternal and Child Health School of Public Health Peking University Beijing 100191 China;

    Department of Maternal and Child Health School of Public Health Central South University Changsha 410078 China;

    School of Public Health Tianjin Medical University Tianjin 300070 China;

    Shanghai Municipal Center for Disease Control and Prevention Shanghai Institute of Preventive Medicine Shanghai 200336 China;

    Department of Maternal and Child Health School of Public Health and Management Chongqing Medical University Chongqing 400016 China;

    School of Public Health and Management Ningxia Medical University Ningxia 750004 China;

    Liaoning Health Supervision Bureau Shenyang 110005 China;

    Department of Maternal and Child Health School of Public Health Sun Yat-sen University Guangzhou 510080 China;

    Department of Maternal and Child Health School of Public Health Sun Yat-sen University Guangzhou 510080 China;

    Department of Epidemiology and Preventive Medicine School of Public Health and Preventive Medicine Monash University Melbourne VIC 3004 Australia;

    Institute of Child and Adolescent Health School of Public Health Peking University Beijing 100191 China;

    Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment Department of Preventive Medicine School of Public Health Sun Yat-sen University Guangzhou 510080 China;

    Department of Maternal and Child Health School of Public Health Sun Yat-sen University Guangzhou 510080 China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Green space; Overweight; Obesity; Cross-sectional study; Mediating effect;

    机译：绿地;超重;肥胖;横断面研究;介导效果;

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