Short-term effects of particulate air pollution on male smokers and never-smokers.

摘要: Background: Numerous studies have shown that ambient air pollution and smoking are both associated with increased mortality, but until now there has been little evidence as to whether the effects of these 2 factors combined greater than sum their individual effects. We assessed smokers subject additional mortality risk from relative never-smokers. Methods: This study included 10,833 Chinese men in Hong Kong who died at age 30 or above during period 1 January 31 December 1998. Relatives registered for deceased persons were interviewed about deceased's history other personal lifestyle 10 years before death. Poisson regression daily number deaths was fitted estimate excess risks per μg/m 3 increase particulate matter aerodynamic diameter <10 μm (PM ) male never-smokers stratified data, data. Results: In a significant PM all natural causes cardio-respiratory diseases older 65 older. For causes, observed never-smokers: 1.9% (95% confidence interval = 0.3% 3.6%) 2.3% (0.4% 4.3%) those Conclusions: Ambient is compared