Concentrations of nitrogen compounds are related to severe rhinovirus infection in infants. A time-series analysis from the reference area of a pediatric university hospital in Barcelona
Author
Armero, Georgina
Penela Sánchez, Daniel
Belmonte, Jordina
Gómez-Barroso, Diana
Larrauri, Amparo
Henares Bonilla , Desirée
Vallejo, Violeta
Brotons, Pedro
Launes, Cristian
Publication date
2022ISSN
1099-0496
Abstract
Background: There is scarce information focused on the effect of weather conditions and air pollution on specific acute viral respiratory infections, such as rhinovirus (RV), with a wide clinical spectrum of severity. Objective: The aim of this study was to analyze the association between episodes of severe respiratory tract infection by RV and air pollutant concentrations (NOx and SO2) in the reference area of a pediatric university hospital. Methods: An analysis of temporal series of daily values of NOx and SO2, weather variables, circulating pollen and mold spores, and daily number of admissions in the pediatric intensive care unit (PICU) with severe respiratory RV infection (RVi) in children between 6 months and 18 years was performed. Lagged variables for 0–5 days were considered. The study spanned from 2010 to 2018. Patients with comorbidities were excluded. Results: One hundred and fifty patients were admitted to the PICU. Median age was 19 months old (interquartile range [IQR]: 11–47). No relationship between RV-PICU admissions and temperature, relative humidity, cumulative rainfall, or wind speed was found. Several logistic regression models with one pollutant and two pollutants were constructed but the best model was that which included average daily NOx concentrations. Average daily NOx concentrations were related with the presence of PICU admissions 3 days later (odds ratio per IQR-unit increase: 1.64, 95% confidence interval: 1.20–2.25)). Conclusions: This study has shown a positive correlation between NOx concentrations at Lag 3 and children's PICU admissions with severe RV respiratory infection. Air pollutant data should be taken into consideration when we try to understand the severity of RVis.
Document Type
Article
Document version
Published version
Language
English
Subject (CDU)
61 - Medical sciences
616.9 - Communicable diseases. Infectious and contagious diseases, fevers
Keywords
Contaminació de l'aire
Infeccions respiratòries víriques agudes específiques
Infeccions respiratòries
Rinovirus
Episodis d'infecció greu
Unitat de cures intensives pediàtriques
Contaminación del aire
Infecciones respiratorias víricas agudas específicas
Infecciones respiratorias
Rinovirus
Episodios de infección grave
Unidad de cuidados intensivos pediátricos
Air pollution
Specific acute viral respiratory infections
Respiratory infections
Rhinovirus
Episodes of severe infection
Pediatric Intensive Care Unit
Pages
9
Publisher
John Wiley & Sons
Is part of
Pediatric Pulmonology
Citation
Armero, Georgina; Penela Sánchez, Daniel; Belmonte, Jordina [et al.]. Concentrations of nitrogen compounds are related to severe rhinovirus infection in infants. A time-series analysis from the reference area of a pediatric university hospital in Barcelona. Pediatric Pulmonology, 2022, p. 1-9. Disponible en: <https://onlinelibrary.wiley.com/doi/10.1002/ppul.26021>. Fecha de acceso: 6 jul. 2022. DOI: 10.1002/ppul.26021
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Rights
© 2022 The Authors. Pediatric Pulmonology published by Wiley Periodicals LLC. This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial‐NoDerivs License, which permits use and distribution in anymedium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/