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首页> 外文期刊>Preventive Medicine: An International Journal Devoted to Practice and Theory >Does regular exercise protect against air pollution-associated mortality?
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Does regular exercise protect against air pollution-associated mortality?

机译：定期运动是否可以预防与空气污染有关的死亡率？

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摘要

OBJECTIVES: To examine whether habitual exercise would modify the effects of air pollution on mortality. METHODS: This study included 24,053 Hong Kong Chinese who died at the age of 30 years or older in 1998. Individual information on frequency of exercise was obtained by interviewing their relatives at all four death registries. The deceased subjects were categorized as never-exercise ( or once/month). Excess risks (ER) of mortality per 10 microg/m(3) increase of air pollutant were estimated separately by a Poisson regression model in the exercise and never-exercise groups. An interaction model was used to estimate the difference in ER between the two groups. RESULTS: In people aged 65 years or older and categorized as never-exercise group, there were significant ER of mortality for all natural causes attributed to nitrogen dioxide (p<0.05), ozone (p<0.05) and particulate matter with an aerodynamic diameter of 10 mum or smaller (p<0.01). When compared to the exercise group,the ER were significantly higher by 4.31% (95% confidence interval: 2.57%, 6.03%), 1.75% (0.25%, 3.23%), and 3.06% (1.74%, 4.37%), respectively. The estimates were insensitive to adjustment for socioeconomic, smoking and health status, and were non-linear by different exercise levels. CONCLUSIONS: The results of this study provide evidence that habitual exercise may prevent premature death attributable to air pollution.
机译：目的：研究习惯性锻炼是否会改变空气污染对死亡率的影响。方法：这项研究包括24,053名1998年在30岁或30岁以上死亡的香港华人。有关运动频率的个人信息是通过与四个死亡登记处的亲属进行面谈而获得的。死者被分为永不锻炼（<一次/月）和运动（>或一次/月）。在运动组和从不运动组中，通过Poisson回归模型分别估算了每增加10 microg / m（3）空气污染物所致的死亡风险（ER）。相互作用模型用于估计两组之间的ER差异。结果：在65岁或以上且从未锻炼的人群中，由于二氧化氮（p <0.05），臭氧（p <0.05）和具有空气动力学直径的颗粒物而导致的所有自然原因的死亡率均显着升高为10毫米或更小（p <0.01）。与运动组相比，ER分别明显高出4.31％（95％置信区间：2.57％，6.03％），1.75％（0.25％，3.23％）和3.06％（1.74％，4.37％）。 。估计值对调整社会经济，吸烟和健康状况不敏感，并且因运动水平不同而呈非线性关系。结论：这项研究的结果提供了证据，证明惯常运动可以防止由于空气污染引起的过早死亡。

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