Journal of Shandong University (Health Sciences) ›› 2018, Vol. 56 ›› Issue (11): 76-83.doi: 10.6040/j.issn.1671-7554.0.2018.442

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Relationship between air pollutants and outpatient visits due to pneumonia in a childrens hospital in Hefei City: a time series analysis

XIAO Changchun1, TANG Jing2, LI Yurong2, ZHAI Jinxia2   

  1. 1. Department of Enviroment &
    Occupational Health, Hefei Center for Disease Control and Prevention, Hefei 230061, Anhui, China;
    2. School of Public Health, Anhui Medical University, Hefei 230061, Anhui, China
  • Published:2022-09-27

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Abstract: Objective To estimate the association between air pollutants exposure and hospital admission for pneumonia among children in Hefei City. Methods The data of air pollutions(PM10, PM2.5, SO2, NO2, CO and O3), meteorological factors(the daily average temperature and relative humidity)and daily outpatient visits due to pneumonia in a childrens hospital in Hefei City during 2014-2017 were collected. The models of single pollutant and total-pollutant analysis developed by using generalized additive model were used to analyze the exposure-effect relationship between air pollutants and hospital admission for pneumonia among children. The lag effects(lag0-lag6)and cumulative lag effects(lag01-lag06)of air pollutions were estimated as the relative risk value of hospital admission due to pneumonia. Results The annual average concentrations of PM10, PM2.5, SO2, NO2, CO and O3 were 90.24, 64.72, 16.08, 39.10, 969.90 and 76.97 μg/m3 respectively. PM10 and PM2.5 concentrations were higher than the national class II standard. During the study period, a total of 67 569 outpatient visits with pneumonia were recorded, with an average daily outpatient volume of 46.25. In single pollutant models, the relative risk of hospital admission due to pneumonia were as follows: 山 东 大 学 学 报 (医 学 版)56卷11期 -肖长春,等.合肥市空气污染与某儿童医院肺炎门诊量关系的时间序列分析 \=-1.011 1, 1.009 8, 1.021 8, 1.001 5, 1.001 2 and 1.003 4 between pneumonia outpatients and PM10, PM2.5, SO2, NO2, CO, O3 with an increase of 10 μg/m3, respectively. In the total-pollutant models, only PM10 significantly correlated with pneumonia outpatients in children(RR=1.008 9, P<0.05). Conclusion The short-term exposure of air pollutants affects the pneumonia outpatient visits in children, and PM10, PM2.5, SO2 and CO have great influence.

Key words: Air pollution, Children, Daily pneumonia outpatients, Time series analysis, Generalized additive model

CLC Number: 

  • R122
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