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The short-term effects of air pollution on respiratory disease hospitalizations in 5 cities in Poland: comparison of time-series and case-crossover analyses

Authors
  • Slama, Alessandro1
  • Śliwczyński, Andrzej2
  • Woźnica-Pyzikiewicz, Jolanta3
  • Zdrolik, Maciej3
  • Wiśnicki, Bartłomiej4
  • Kubajek, Jakub3
  • Turżańska-Wieczorek, Olga3
  • Studnicki, Marcin5
  • Wierzba, Waldemar2
  • Franek, Edward1, 6
  • 1 Central Clinical Hospital MSWiA in Warsaw,
  • 2 University of Humanities and Economics in Łodz, Satellite Campus in Warsaw,
  • 3 Chancellery of the Prime Minister of Poland,
  • 4 Warsaw School of Economics,
  • 5 Warsaw University of Life Sciences,
  • 6 Mossakowski Clinical Research Centre, Polish Academy of Sciences,
Type
Published Article
Journal
Environmental Science and Pollution Research
Publisher
Springer-Verlag
Publication Date
Apr 30, 2020
Volume
27
Issue
19
Pages
24582–24590
Identifiers
DOI: 10.1007/s11356-020-08542-5
PMID: 32356054
PMCID: PMC7326830
Source
PubMed Central
Keywords
License
Unknown

Abstract

Very few publications have compared different study designs investigating the short-term effects of air pollutants on healthcare visits and hospitalizations for respiratory tract diseases. This study describes, using two different study designs (a case-crossover design and a time-series analysis), the association of air pollutants and respiratory disease hospitalizations. The study has been conducted on 5 cities in Poland on a timeline of almost 4 years. DLNM and regression models were both used for the assessment of the short-term effects of air pollution peaks on respiratory hospitalizations. Both case-crossover and time-series studies equally revealed a positive association between air pollution peaks and hospitalization occurrences. Results were provided in the form of percentage increase of a respiratory visit/hospitalization, for each 10-μg/m3 increment in single pollutant level for both study designs. The most significant estimated % increases of hospitalizations linked to increase of 10 μg/m3 of pollutant have been recorded in general with particulate matter, with highest values for 24 h PM2.5 in Warsaw (6.4%, case-crossover; 4.5%, time series, respectively) and in Białystok (5.6%, case-crossover; 4.5%, time series, respectively). The case-crossover analysis results have shown a larger CI in comparison to the results of the time-series analysis, while the lag days were easier to identify with the case-crossover design. The trends and the overlap of the results occurring from both methods are good and show applicability of both study designs to air pollution effects on short-term hospitalizations.

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