The modifying effect of socioeconomic status on the relationship between traffic, air pollution and respiratory health in elementary schoolchildren

被引:67
作者
Cakmak, Sabit [1 ]
Hebbern, Christopher [1 ]
Cakmak, Jasmine D. [2 ]
Vanos, Jennifer [3 ]
机构
[1] Hlth Canada, Environm Hlth Sci & Res Bur, Populat Studies Div, 50 Columbine Driveway, Ottawa, ON K1A 0K9, Canada
[2] Univ Ottawa, Biomed Sci, Ottawa, ON K1N 6N5, Canada
[3] Texas Tech Univ, Dept Geosci, Box 41053, Lubbock, TX 79409 USA
关键词
Air pollution; Traffic; Respiratory health; Lung function; Socioeconomics; Children; Effect modifier; Epidemiologic; CASE-CROSSOVER; LUNG-FUNCTION; ASTHMA; CHILDREN; RISK; INFLAMMATION; ASSOCIATION; VARIABILITY; SYMPTOMS; ROADWAYS;
D O I
10.1016/j.jenvman.2016.03.051
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The volume and type of traffic and exposure to air pollution have been found to be associated with respiratory health, but few studies have considered the interaction with socioeconomic status at the household level. We investigated the relationships of respiratory health related to traffic type, traffic volume, and air pollution, stratifying by socioeconomic status, based on household income and education, in 3591 schoolchildren in Windsor, Canada. Interquartile range changes in traffic exposure and pollutant levels were linked to respiratory symptoms and objective measures of lung function using generalised linear models for three levels of income and education. In 95% of the relationships among all cases, the odds ratios for reported respiratory symptoms (a decrease in measured lung function), based on an interquartile range change in traffic exposure or pollutant, were greater in the lower income/education groups than the higher, although the odds ratios were in most cases not significant. However, in up to 62% of the cases, the differences between high and low socioeconomic groups were statistically significant, thus indicating socioeconomic status (SES) as a significant effect modifier. Our findings indicate that children from lower socioeconomic households have a higher risk of specific respiratory health problems (chest congestion, wheezing) due to traffic volume and air pollution exposure. Crown Copyright (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码:1 / 8
页数:8
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