Study on the effect of long-term exposure to atmospheric PM2.5 on death of respiratory diseases in Ningxia based on difference-difference method
Objective To investigate the mortality of respiratory diseases and the distribution of PM2.5 in Ningxia from 2010 to 2015,and to explore the effect of long-term exposure of PM2 5 on the mortality of residents from respiratory diseases in Ningxia.Methods The death monitoring data of Ningxia residents,the average daily concentration of PM2.5 in each street and township,and the related data of meteorological,population and geographic information in Ningxia from 2010 to 2015 were collected.A modified difference-difference design(generalized nonlinear model fitting)was used to analyze the effect of long-term exposure to atmospheric PM2 5 on mortality from respiratory diseases.Results 55.36％of males and 44.63％of females died of respiratory diseases.The group aged 64 years old and below accounted for 14.21％,65 years old and above accounted for 85.79％;The OR values and 95％confidence intervals(CI)for mortality from respiratory and lower respiratory diseases were 1.03(1.02～1.04)and 1.03(1.02～1.05)for each increase of atmospheric PM2 5 concentration by 1μg/m3,respectively.The results showed that the OR and 95％CI of male and female respiratory deaths were 1.03(1.02～1.04)and 1.03(1.02～1.05)for every increase of atmospheric PM2 5 concentration of 1 μg/m3 1 μg/m.That's right.The OR and 95％CI of death from respiratory diseases were 1.02(0.99～1.05)and 1.03(1.02～1.04),respectively,in the 64 and ≥65 age groups.Conclusion Long-term exposure to PM2 5 can increase the risk of respiratory diseases and death from lower respiratory diseases in Ningxia.Both men and women are susceptible to PM2.5,group ≥ 65 years old is more susceptible.
Fine particulate matterRespiratory diseasesDeathDifference in differenceGeneralized nonlinear model
NETL
NSTL
万方数据
