Influence of socioeconomic conditions on air pollution adverse health effects in elderly people:: an analysis of six regions in Sao Paulo, Brazil
Influence of socioeconomic conditions on air pollution adverse health effects in elderly people:: an analysis of six regions in Sao Paulo, Brazil
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DOI：
10.1136/jech.58.1.41
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发表时间：
2004-01-01
影响因子：
6.3
通讯作者：
Braga, ALF
中科院分区：
文献类型：
--
作者：
Martins, MCH;Fatigati, FL;Braga, ALF
研究目的：评价社会经济状况是否影响颗粒物(PM10)对老年人呼吸系统死亡率的影响。设计：时间序列研究。从1997年1月到1999年12月，巴西圣保罗市六个不同地区的老年人呼吸系统死亡人数以广义线性泊松回归模型建模，控制了长期趋势、天气和一周中的某一天。根据空气污染监测站的邻近程度来定义这些地区。主要结果：PM10浓度每增加10ug/m(3)，呼吸道死亡率增加的百分比从1.4%(95%可信区间5.9~8.7)到14.2%(95%可信区间0.4~28.0)。六个地区的总体增长百分比为5.4%(95%可信区间2.3至8.6)。PM10的影响与受过大学教育和高家庭收入的比例呈负相关，与居住在贫民窟的比例呈正相关。结论：社会经济剥夺是空气污染与呼吸道死亡之间关系的影响修饰者。
Study objective: To evaluate if the effects of particulate matter ( PM10) on respiratory mortality of elderly people are affected by socioeconomic status.Design: Time series studies. The daily number of elderly respiratory deaths were modelled in generalised linear Poisson regression models controlling for long term trend, weather, and day of the week, from January 1997 to December 1999, in six different regions of Sao Paulo City, Brazil. The regions were defined according to the proximity of air pollution monitoring stations. Three socioeconomic indicators were used: college education, monthly income, and housing.Main results: For a 10 mug/m(3) increase in PM10, the percentage increase in respiratory mortality varied from 1.4% ( 95% CI 5.9 to 8.7) to 14.2% ( 95% CI 0.4 to 28.0). The overall percentage increase in the six regions was 5.4% ( 95% CI 2.3 to 8.6). The effect of PM10 was negatively correlated with both percentage of people with college education and high family income, and it was positively associated with the percentage of people living in slums.Conclusions: These results suggest that socioeconomic deprivation represents an effect modifier of the association between air pollution and respiratory deaths.