Association between particulate matter air pollution and hospital emergency room visits for pneumonia with septicemia: A retrospective analysis

Fu Jen Cheng, Kuo Hsin Lee, Chia Wei Lee, Ping Chi Hsu*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

22 Scopus citations

Abstract

Pneumonia is an inflammatory condition of the lungs caused by infection, which may be triggered and exacerbated by particulate matter (PM) exposure. We aimed to estimate the effect of PM on emergency department (ED) visits in pneumonia patients with septicemia after controlling for gaseous pollutants. Measurements on PM 2.5 , PM 10 , and other air pollutants at each of the 11 air-quality monitoring stations in Kaohsiung City, Taiwan, were collected between 2007 and 2013. The medical records of non-trauma patients who were over 17 years old and had visited the ED with a principal diagnosis of pneumonia were extracted. Poisson models were used to examine the relationship between air pollutants and daily ED visits for pneumonia with septicemia. Interquartile increments in the levels of PM 2.5 , PM 10 , and NO 2 at lag 0 were associated with increments of 25.5%, 21.61%, and 21.97%, respectively, in the number of ED visits for pneumonia with septicemia during the warm season. The effect estimates of PM 2.5 were robust after adjusting for PM 10 and NO 2 in the two-pollutant model. PM 2.5 had stronger associations with ED visits in the cases of pneumonia with septicemia in relatively healthy patients, such as those without comorbid hypertension, diabetes, stroke, liver cirrhosis, respiratory disease, or malignancy. In conclusion, although the existing evidence already supports a causal relationship between PM 2.5 and pulmonary dysfunction, we propose that PM 2.5 may also play an important role in emergency visits for pneumonia with septicemia during the warm season in southern Taiwan after adjusting for PM 10 and NO 2 , especially among relatively healthy residents.

Original languageEnglish
Pages (from-to)345-354
Number of pages10
JournalAerosol and Air Quality Research
Volume19
Issue number2
DOIs
StatePublished - 02 2019

Bibliographical note

Publisher Copyright:
© Taiwan Association for Aerosol Research.

Keywords

  • Air pollution
  • Emergency department
  • Particulate matter
  • Pneumonia
  • Septicemia

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