Résumé
Objective To understand the trend of lung cancer mortality of permanent residents in Beijing urban area caused by the influence of per capita tobacco consumption and air pollution.Methods Data of lung cancer mortality,air pollution and tobacco consumption from 1982 to 2005 was collected from published year books and Beijing cancer registration division.Trend analysis was applied to test significance of trend of lung cancer mortality of permanent resident in Beijing urban area.Distributed lag model was applied to determine the influence of per capita tobacco consumption and air pollution on lung cancer mortality by Eviews software package.Results Lung cancer mortality of permanent residents in Beijing urban area elevated from 19.74/100 000 in 1982 to 44.73/100 000 in 2005.In the distributed lag model for lung cancer mortality,with per capita tobacco consumption as independent variable,comprehensive index of air pollution,NO2 and PM10 were not statistical significant,while SO2 had statistical significance(P
Résumé
Objective To understand the effects of heat wave on daily mortality of residents in a coastal city in China.Methods In this paper,semi-parametric generalized additive model was used to study the relationship between average daily temperature and the daily mortality of local residents,and every day lag on the impact of daily mortality was observed by the distributed lag model,2005 -2007.Results The relation between the coastal city daily mortality and the daily average temperature was fitted,2005-2007.The relation between them was approximately "V".In summer,the daily average temperature increased 1℃,the relative risk factor increased 0.036.In the establishment of the semi-parametric generalized additive regression model,the daily average temperature and daily mortality showed a significant linear relationship(P