Relationship between PM2.5 and deaths due to circulatory system diseases among residents in Hohhot City,2018-2021
Objective To explore the impact of PM2.5 on deaths caused by circulatory system diseases among residents in Hohhot City during 2018-2021.Methods The monitoring data about air pollutants,meteorology and death causes in Hohhot City from 2018 to 2021 were collected.The generalized additive model was used to fit single pollutant model and double pollutant model for analyzing the relationship between PM2.5 and deaths from circulatory system diseases among residents in Hohhot City.Results The relationships between the total number of deaths due to circulatory system diseases and atmospheric PM2.5 among residents in Hohhot City were the strongest on lag 1 day.The death risk of circulatory system diseases among residents in Hohhot City increased by 6.31％(95％CI:2.39％-10.24％)for per 10μg/m3 increase in PM2.5 concentration.Among residents aged＞65 years,the excess risk(ER)was 7.79％(95％CI:2.90％-12.69％).No statistically significant difference was found in the lag effect among residents aged ≤65 years(P＞0.05).Among male residents,the effect of atmospheric PM2.5 on deaths due to circulatory system diseases was the strongest on lag 2 days,with the ER being 7.43％(95％CI:1.61％-13.25％).Among female residents,the effect of atmospheric PM2.5 on deaths due to circulatory system diseases was the strongest on lag 0 day,with the ER of 10.89％(95％CI:4.24％-17.55％).Conclusion Atmospheric PM2.5 exposure was associated with the risk of acute excess deaths due to circulatory system diseases among residents in Hohhot City during 2018-2021,with a lag effect.The increase of PM2.5 concentration may lead to an increased risk of deaths due to circulatory system diseases among residents in Hohhot City,and residents aged＞65 years may be the sensitive group.
air pollutionfine particulate mattercirculatory system diseasedeathtime-series analysis
NETL
NSTL
万方数据
