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Acute Effects of Air Pollution on Hospital Admissions for Asthma, COPD, and Bronchiectasis in Ahvaz, Iran

Authors Raji H, Riahi A, Borsi SH, Masoumi K, Khanjani N, AhmadiAngali K, Goudarzi G, Dastoorpoor M

Received 17 September 2019

Accepted for publication 21 February 2020

Published 3 March 2020 Volume 2020:15 Pages 501—514

DOI https://doi.org/10.2147/COPD.S231317

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 3

Editor who approved publication: Dr Richard Russell


Hanieh Raji,1 Atefeh Riahi,2 Seyed Hamid Borsi,1 Kambiz Masoumi,3 Narges Khanjani,4 Kambiz AhmadiAngali,5 Gholamreza Goudarzi,6 Maryam Dastoorpoor5

1Department of Internal Medicine, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; 2Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; 3Department of Emergency Medicine, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; 4Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran; 5Department of Biostatistics and Epidemiology, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; 6Department of Environmental Health Engineering, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran

Correspondence: Maryam Dastoorpoor
Department of Biostatistics and Epidemiology, Air Pollution and Respiratory Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
Tel +98 61 333 6754
Email mdastoorpour@yahoo.com

Background and Aim: Although air pollution is a serious problem in Ahvaz, the association between air pollution and respiratory diseases has not been studied enough in this area. The aim of this study was to determine the relation between short-term exposure to air pollutants and the risk of hospital admissions due to asthma, COPD, and bronchiectasis in Ahvaz.
Methods: Hospital admissions data and air pollutants including O3, NO, NO2, SO2, CO, PM10, and PM2.5 were obtained from 2008 to 2018. Adjusted Quasi-Poisson regression with a distributed lag model, controlled for trend, seasonality, weather, weekdays, and holidays was used for data analysis.
Results: The results showed a significant increase in hospital admissions for asthma (RR=1.004, 95% CI: 1.002– 1.007) and COPD (RR=1.003, 95% CI: 1.001– 1.005) associated with PM2.5. PM10 was associated with increased hospital admissions due to bronchiectasis in both genders (Men: RR=1.003, 95% CI: 1.001– 1.006) (Female: RR=1.003, 95% CI: 1.000– 1.006). NO2 was also associated with an increased risk of hospital admissions for asthma (RR=1.040, 95% CI: 1.008– 1.074) and COPD (RR=1.049, 95% CI: 1.010– 1.090). SO2 was associated with the risk of hospital admissions of asthma (RR=1.069, 95% CI: 1.017– 1.124) and bronchiectasis (RR=1.030, 95% CI: 1.005– 1.056). Finally, CO was associated with COPD (RR=1.643, 95% CI: 1.233– 2.191) and bronchiectasis (RR=1.542, 95% CI: 1.035– 2.298) hospital admissions.
Conclusion: Short-term exposure to air pollutants significantly increases the risk of hospital admissions for asthma, COPD, and bronchiectasis in the adult and elderly population.

Keywords: air pollution, particulate matter, asthma, COPD, bronchiectasis


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