Journal of Shandong University (Health Sciences) ›› 2018, Vol. 56 ›› Issue (11): 53-60.doi: 10.6040/j.issn.1671-7554.0.2018.356

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Impact of air pollution on the outpatient visits of adult internal medicine in Wuxi City: a time series study

YOU Yingqi1,2, ZHU Jingying2, ZHANG Xuhui2, ZHANG Xi2, ZHOU Weijie1,2   

  1. 1. School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China;
    2.Wuxi Center for Disease Control and Prevention, Wuxi 214023, Jiangsu, China
  • Published:2022-09-27

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Abstract: Objective To explore the effect of air pollutants on the outpatient visits in adult internal medicine, and to provide a scientific basis for preventing the health damage of air pollutants to the population. Methods Data of atmospheric pollutants, daily outpatient visits of respiratory and circulatory diseases in Wuxi City from January 1, 2015 to December 31, 2016 were collected. The generalized additive model(GAM)method of time series Poisson distribution was used to control the mixing of long-term and seasonal variation trends, days of the week effect, meteorological factors and other pollutants. On the basis of impurity factors, the influence of air pollutants on the outpatient visits of respiratory and circulatory diseases was quantitatively analyzed. Results The effects of PM2.5, PM10, SO2 and NO2 on the daily outpatient visits of respiratory and circulatory diseases in Wuxi City from January 1, 2015 to December 31, 2016 were hysteretic and cumulative. PM2.5, PM10, SO2 and NO2 were all lagged behind the moving average of 0-5 days(lag05), 山 东 大 学 学 报 (医 学 版)56卷11期 -游颖琦,等.无锡市大气污染对成人内科门诊量影响的时间序列研究 \=-so that the excess risk(ER)of the daily outpatient visits of respiratory diseases reached the maximum, in which the daily outpatient visits of respiratory diseases increased by respective 0.44%(95% CI: 0.08%-0.80%), 0.47%(95%CI: 0.22%-0.72%), 3.85%(95%CI: 2.73%-4.98%)and 2.63%(95%CI: 2.00%-3.26%)with their concentration increase per 10 μg/m3. The moving average values of PM2.5, PM10, SO2 and NO2 were lagged 0-1 days(lag01), 0-1 days(lag01), 0-4 days(lag04), 0-4 days(lag04), respectively, which made the ER of the daily outpatient visits of circulatory system disease reach the maximum. With the concentration increase per 10 μg/m3, the daily outpatient visits of circulatory system diseases increased by 0.68%(95%CI: 0.52%-0.84%), 0.46%(95%CI: 0.34%-0.58%), 6.41%(95%CI: 5.66%-7.17%)and 4.22%(95%CI: 3.81%-4.63%). Conclusion Increased concentrations of PM2.5, PM10, SO2, and NO2 of air pollutants are associated with increased risk of outpatient visits in respiratory and circulatory diseases.

Key words: Time series research, Air pollution, Respiratory disease, Circulatory disease, Outpatient visits

CLC Number: 

  • R122.7
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