Greener neighborhoods, slimmer people? Evidence from 246 920 Australians
Greener neighborhoods, slimmer people? Evidence from 246 920 Australians
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DOI：
10.1038/ijo.2013.64
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发表时间：
2014-01-01
影响因子：
4.9
通讯作者：
Kolt, G. S.
中科院分区：
文献类型：
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作者：
Astell-Burt, T.;Feng, X.;Kolt, G. S.
尽管越来越多的人认为，人口心血管健康的改善取决于促进健康生活方式的环境，但支持大规模投资社区绿化以解决肥胖问题的证据并不一致，而且没有关注慢性健康问题负担最重的中老年成年人。采用多级线性和多项 Logit 回归模型来研究 246 920 名 45 岁及以上澳大利亚成年人样本中体重指数与客观绿地测量之间的关联（45 岁及以上研究）。使用每个参与者周围 1 公里半径的集水区来构建邻近的绿色空间。接近绿色空间超过 80% 的女性超重的相对风险比为 0.90（95% 置信区间：0.83，0.97），肥胖的相对风险比为 0.83（0.74，0.94）。没有发现对男性有类似的保护作用。在控制了中度至剧烈体力活动 (MVPA) 和静坐时间后，这些结果是一致的，其中每一个都与男性和女性的绿色空间接近程度相关。大规模投资改善绿色空间可能会促进 MVPA 并减少中老年人的久坐行为，但对肥胖的影响可能不会让每个人都受益到同样的程度。
Although there is growing consensus that population-level improvements in cardiovascular health depend upon environments that promote healthy lifestyles, evidence to support large-scale investments in neighborhood greenery to tackle obesity is inconsistent and has not focused on adults in middle-to-old age who experience the greatest burden of chronic health problems. Multilevel linear and multinomial logit regression models were fitted to investigate association between body mass index and an objective measure of green space in a sample of 246 920 Australian adults aged 45 years and older (The 45 and Up Study). Proximity to green space was constructed using catchment areas of 1 km radius around each participant. Women with over 80% proximity to green space had relative risk ratios of 0.90 (95% confidence interval: 0.83, 0.97) for overweight and 0.83 (0.74, 0.94) for obese. No similarly protective association was found for men. These results were consistent after controlling for moderate-to-vigorous physical activity (MVPA) and sitting time, each of which was favorably associated with green space proximity in men and women. Large-scale investments to enhance green spaces may promote MVPA and reduce sedentary behavior in middle-to-older-aged adults, but the impact on obesity may not benefit everyone to the same extent.