Associations of residential greenness with peripheral and central obesity in China

四分位数 腰围 体质指数 医学 肥胖 逻辑回归 优势比 人口学 腰高比 周长 队列研究 横断面研究 置信区间 内科学 数学 病理 社会学 几何学
作者
Lina Zhang,Chen Chen,Cong Liu,Yi Zhang,Jianlong Fang,Jingxiu Han,Feng Zhao,Peng Du,Qiong Wang,Jiaonan Wang,Wanying Shi,Weidong Wang,Su Shi,Renjie Chen,Haidong Kan,Xia Meng,Tiantian Li,Xiaoming Shi
出处
期刊:Science of The Total Environment [Elsevier BV]
卷期号:791: 148084-148084 被引量:12
标识
DOI:10.1016/j.scitotenv.2021.148084
摘要

Obesity is a well-known risk factor for public health. Recent studies found that greenness exposure may protect against obesity. However, the accumulated evidence on associations of greenness-obesity is inconsistent and most of them are from developed countries. This study aimed to evaluate the associations of greenness exposure with indicators of peripheral and central obesity. This cross-sectional study was based on a Chinese national Sub-Clinical Outcomes of Polluted Air (SCOPA) prospective cohort across 15 provinces, and 5849 participants with average age of 64.7 were included. Surrounding greenness was estimated with the Enhanced Vegetation Index (EVI), which was calculated at each participant's residential addresses within a 250 m buffer. Weight, height and waist circumference (WC) were measured, and body mass index (BMI) and the waist-to-height ratio% (WHtR%) were calculated based on those measurements. The relationships between EVI and obese outcomes were explored using multiple linear regression and logistic regression models. Non-linear associations were observed between EVI and obese indicators. Participants living in Quartile 3 benefited more than in Quartile 4 compared to the lowest quartile (Quartile 1) of greenness. For peripheral obesity, participants living in Quartile 3 of EVI 250m had 0.86 kg/m 2 (β −0.86, 95% CI: −1.10, −0.61) lower BMI, and 46% (OR 0.54, 95% CI: 0.44–0.66) lower odds of peripheral obesity than in Quartile 1. For central obesity, participants living in Quartile 3 of EVI 250m had 1.85 cm (β −1.85, 95% CI: −2.54, −1.15) lower waist circumference, 1.12% (β −1.12, 95% CI: −1.56, −0.67) lower waist-to-height ratio% (WHtR%), and 33% (OR 0.67, 95% CI: 0.57–0.78) lower odds of central obesity than in Quartile 1 of EVI 250m . Higher levels of greenness were statistically significant associated with lower obesity risk. • This is a national cross-sectional study on the greenness-obesity associations. • The results suggest that greenness is a protective factor for obesity in China. • Greenness was not only associated with peripheral obesity, but also central obesity.
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