Relatively few studies have examined long-term effects of air pollution in China. Several prospective cohort studies in North America and Europe have estimated effects of long-term exposure to air pollution on mortality (Pope and Dockery 2006), but it is not clear whether the findings from developed countries apply to China, given differences in the levels and characteristics of air pollution, and in sociodemographic characteristics. So far, there has been no cohort study of air pollution in China, but results of cross-sectional analyses in Beijing, Shenyang, and Benxi have suggested that long-term exposure to air pollution is associated with increased mortality (Chen et al. 2004). However, results of these analyses are difficult to interpret because of the lack of information on potential confounders.
Relatively few studies have examined long-term effects of air pollution in China. Several prospective cohort studies in North America and Europe have estimated effects of long-term exposure to air pollution on mortality (Pope and Dockery 2006), but it is not clear whether the findings from developed countries apply to China, given differences in the levels and characteristics of air pollution, and in sociodemographic characteristics. So far, there has been no cohort study of air pollution in China, but results of cross-sectional analyses in Beijing, Shenyang, and Benxi have suggested that long-term exposure to air pollution is associated with increased mortality (Chen et al. 2004). However, results of these analyses are difficult to interpret because of the lack of information on potential confounders.
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