Wen Xiao-Jun, Balluz Lina S, Shire Jeffrey D, Mokdad Ali H, Kohl Harold W
Survey Operation Section, Behavioral Surveillance Branch, National Center for Chronic Diseases/Division for Adult and Community Health, Centers for Disease Control and Prevention, Atlanta, GA 30341, USA.
J Environ Health. 2009 Jul-Aug;72(1):40-4; quiz 45.
This study examines the association between annual levels of particulate matter (PM) and self-reported leisure-time physical inactivity (LTPI) in the Behavioral Risk Factor Surveillance System (BRFSS) among 63,290 survey respondents who participated in the 2001 BRFSS from 142 counties in the U.S. The average prevalence of self-reported LTPI was about 24.9% (SE = 0.3%), LTPI prevalence was positively associated with annual mean of PM.5 concentration (p < .0001). The authors demonstrate that LTPI was associated with PM2.5 pollution with statistical significance with and without adjustment for covariates (adjusted odds ration [OR] = 1.16; 95% CI: [confidence interval] 1.06-1.27). This study suggests that ambient PM2.5 air pollution is associated independently with LTPI. PM2.5 pollution and physical inactivity are both risk factors of chronic diseases. Therefore, it is important for environmental officials to implement measures to reduce ambient air pollution while public health officials simultaneously promote regular physical activity by encouraging the general public to remain physically active.
本研究在美国142个县参与2001年行为危险因素监测系统（BRFSS）的63290名调查对象中，考察了颗粒物（PM）年度水平与自我报告的休闲时间身体活动不足（LTPI）之间的关联。自我报告的LTPI平均患病率约为24.9%（标准误=0.3%），LTPI患病率与PM2.5浓度的年平均值呈正相关（p<0.0001）。作者证明，无论是否对协变量进行调整，LTPI与PM2.5污染均具有统计学关联（调整后的优势比[OR]=1.16；95%置信区间[CI]：1.06 - 1.27）。本研究表明，环境PM2.5空气污染与LTPI独立相关。PM2.5污染和身体活动不足都是慢性病的危险因素。因此，环境官员采取措施减少环境空气污染，同时公共卫生官员通过鼓励公众保持身体活动来促进定期体育锻炼，这很重要。
