title: Association between Ambient Air Pollution and Hospital Emergency Admissions for Respiratory and Cardiovascular Diseases in Beijing: a Time Series Study.
abstract: OBJECTIVE
  To investigate the association between ambient air pollution and hospital emergency admissions in Beijing.
  
  
  METHODS
  In this study, a semi-parametric generalized additive model (GAM) was used to evaluate the specific influences of air pollutants (PM10, SO2, and NO2) on hospital emergency admissions with different lag structures from 2009 to 2011, the sex and age specific influences of air pollution and the modifying effect of seasons on air pollution to analyze the possible interaction.
  
  
  RESULTS
  It was found that a 10 μg/m3 increase in concentration of PM10 at lag 03 day, SO2 and NO2 at lag 0 day were associated with an increase of 0.88%, 0.76%, and 1.82% respectively in overall emergency admissions. A 10 μg/m3 increase in concentration of PM10, SO2 and NO2 at lag 5 day were associated with an increase of 1.39%, 1.56%, and 1.18% respectively in cardiovascular disease emergency admissions. For lag 02, a 10 μg/m3 increase in concentration of PM10, SO2 and NO2 were associated with 1.72%, 1.34%, and 2.57% increases respectively in respiratory disease emergency admissions.
  
  
  CONCLUSIONS
  This study further confirmed that short-term exposure to ambient air pollution was associated with increased risk of hospital emergency admissions in Beijing.
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: College of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu 610103, Sichuan, China.
authors.forename: Shi Gong
authors.initials: SG
authors.lastname: Wang
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Yu Xia
authors.initials: YX
authors.lastname: Ma
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Ke Zheng
authors.initials: KZ
authors.lastname: Shang
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Yi Fan
authors.initials: YF
authors.lastname: Cheng
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Xu
authors.initials: X
authors.lastname: Li
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Gui Cai
authors.initials: GC
authors.lastname: Ning
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Wen Jing
authors.initials: WJ
authors.lastname: Zhao
authors.affiliation: College of Atmospheric Science, Center for Meteorological Environment and Human Health, Lanzhou University, the Gansu key Laboratory of Arid Climate Change and Reducing Disaster, Lanzhou 730000, Gansu, China.
authors.forename: Nai Rong
authors.initials: NR
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000397:Air Pollution / Q000009:adverse effects*; D002318:Cardiovascular Diseases / Q000453:epidemiology / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D002947:Cities; D004632:Emergency Medical Services; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012140:Respiratory Tract Diseases / Q000453:epidemiology / Q000209:etiology*; D012621:Seasons; D055815:Young Adult
keywords: Ambient air pollution; Hospital emergency admissions; Time-series