Exploring the links between population density, lifestyle, and being overweight: secondary data analyses of middle-aged and older Chinese adults
Exploring the links between population density, lifestyle, and being overweight: secondary data analyses of middle-aged and older Chinese adults
复制标题
探索人口密度、生活方式和超重之间的联系：中国中老年人的二手数据分析
DOI：
10.1186/s12955-019-1172-3
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发表时间：
2019-06
影响因子：
3.6
通讯作者：
Rong Wu
中科院分区：
文献类型：
--
作者：
Ruoyu Wang;Zhixin Feng;Desheng Xue;Ye Liu;Rong Wu
背景：肥胖在中国各年龄组中的流行率不断上升，已成为一个主要的健康问题。以前的研究发现，在西方国家，人口密度、久坐不动的生活方式和成年人和青少年超重的风险之间存在密切联系。然而，很少有研究已经进行了解开这种关系在中国，这是快速城市化和人口密集。与其他年龄组相比，中年和老年人往往有更高的超重风险，这增加了他们患糖尿病，高血压和其他与体重有关的慢性疾病的风险。此外，它们对人口密度等邻近环境因素特别敏感。因此，我们的目标是解开人口密度与中国中年和老年人超重风险之间的联系，特别关注生活方式选择的中介作用。方法：对2011年中国健康与退休纵向研究的数据进行分析。从150个城市的405个社区对个人（N = 5285）进行了抽样。根据自我报告的体重和身高计算体重指数（BMI）（超重定义为BMI ≥ 24 kg/m2）。多水平回归和中介分析被应用于探索人口密度，久坐的生活方式和超重风险之间的关联。结果：居住在人口稠密地区的中老年人超重的几率更高。此外，居民的出行方式和体育锻炼也是这种联系的中介;具体来说，这些居民拥有汽车的几率更高，每周体育锻炼的时间更少，从而增加了他们超重的风险。此外，汽车拥有量和超重几率之间的关联因社区人口密度而异。结论：社区人口密度与中老年人超重风险之间存在正相关。这种关系的存在可能是因为居住在人口稠密的社区的人往往过着久坐不动的生活方式。我们的研究结果还表明，在快速城市化的国家，久坐不动的生活方式可能对居住在人口密集社区的中年人和老年人特别有害。
Background.The increasing prevalence of obesity across all age groups has become a major health concern in China. Previous studies have found strong links between population density, sedentary lifestyle, and the risk of being overweight among adults and adolescents in Western countries. However, little research has been conducted to disentangle this relationship in China, which is rapidly urbanizing and densely populated. Compared to other age groups, middle-aged and older adults tend to have a higher risk of being overweight, which increases their risk of diabetes, high blood pressure, and other weight-related chronic diseases. In addition, they are especially sensitive to neighbourhood environmental factors such as population density. Therefore, we aimed to unravel the link between population density and the risk of being overweight among Chinese middle-aged and older adults, with a particular focus on the mediating role of lifestyle choices...Methods.Data from the 2011 China Health and Retirement Longitudinal Study were analysed. Individuals (N = 5285) were sampled from 405 neighbourhoods nested within 150 cities. Body Mass Index (BMI) was calculated based on self-reported body weight and height (being overweight was defined as a BMI ≥ 24 kg/m2). Multilevel regression and mediation analyses were applied to explore associations between population density, a sedentary lifestyle, and the risk of being overweight...Results.Middle-aged and older adults who lived in densely populated neighbourhoods had higher odds of being overweight. Further, this link was mediated by residents’ mode of travel and physical exercise; specifically, these residents had higher odds of owning a car and spending lesser time on weekly physical exercise, thereby increasing their risk of being overweight. Furthermore, the association between car ownership and the odds of being overweight varied by neighbourhood population density...Conclusions.There was a positive association between neighbourhood population density and middle-aged and older adults’ risk of being overweight. This relationship may exist because people who live in densely populated neighbourhoods tend to lead a sedentary lifestyle. Our findings also suggest that, in rapidly urbanizing countries, a sedentary lifestyle may be especially harmful to middle-aged and older adults who live in densely populated neighbourhoods.
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影响因子：
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作者：
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通讯作者：
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